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mdadm/SOURCES/0048-mdadm-add-CHANGELOG.md.patch

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import CS mdadm-4.3-3.el9
2024-09-30 16:04:05 +00:00
From 275e5d2fe316202cce5cb1319a83c3cd8fb22dd3 Mon Sep 17 00:00:00 2001
From: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
Date: Tue, 26 Mar 2024 13:21:10 +0100
Subject: [PATCH 48/69] mdadm: add CHANGELOG.md
Bring changelog back to life. Remove ANNOUCEs. It will use markdown
format, to have one style. All releases are migrated to new
changelog. It was a exercise I have taken, to familiarize with the
mdadm history.
Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
---
ANNOUNCE-3.0 | 98 -------------
ANNOUNCE-3.0.1 | 22 ---
ANNOUNCE-3.0.2 | 21 ---
ANNOUNCE-3.0.3 | 29 ----
ANNOUNCE-3.1 | 33 -----
ANNOUNCE-3.1.1 | 39 ------
ANNOUNCE-3.1.2 | 46 -------
ANNOUNCE-3.1.3 | 46 -------
ANNOUNCE-3.1.4 | 37 -----
ANNOUNCE-3.1.5 | 42 ------
ANNOUNCE-3.2 | 77 -----------
ANNOUNCE-3.2.1 | 75 ----------
ANNOUNCE-3.2.2 | 36 -----
ANNOUNCE-3.2.3 | 24 ----
ANNOUNCE-3.2.4 | 144 -------------------
ANNOUNCE-3.2.5 | 31 -----
ANNOUNCE-3.2.6 | 57 --------
ANNOUNCE-3.3 | 63 ---------
ANNOUNCE-3.3.1 | 23 ----
ANNOUNCE-3.3.2 | 16 ---
ANNOUNCE-3.3.3 | 18 ---
ANNOUNCE-3.3.4 | 37 -----
ANNOUNCE-3.4 | 24 ----
ANNOUNCE-4.0 | 22 ---
ANNOUNCE-4.1 | 16 ---
ANNOUNCE-4.2 | 19 ---
CHANGELOG.md | 368 +++++++++++++++++++++++++++++++++++++++++++++++++
ChangeLog | 306 ----------------------------------------
28 files changed, 368 insertions(+), 1401 deletions(-)
delete mode 100644 ANNOUNCE-3.0
delete mode 100644 ANNOUNCE-3.0.1
delete mode 100644 ANNOUNCE-3.0.2
delete mode 100644 ANNOUNCE-3.0.3
delete mode 100644 ANNOUNCE-3.1
delete mode 100644 ANNOUNCE-3.1.1
delete mode 100644 ANNOUNCE-3.1.2
delete mode 100644 ANNOUNCE-3.1.3
delete mode 100644 ANNOUNCE-3.1.4
delete mode 100644 ANNOUNCE-3.1.5
delete mode 100644 ANNOUNCE-3.2
delete mode 100644 ANNOUNCE-3.2.1
delete mode 100644 ANNOUNCE-3.2.2
delete mode 100644 ANNOUNCE-3.2.3
delete mode 100644 ANNOUNCE-3.2.4
delete mode 100644 ANNOUNCE-3.2.5
delete mode 100644 ANNOUNCE-3.2.6
delete mode 100644 ANNOUNCE-3.3
delete mode 100644 ANNOUNCE-3.3.1
delete mode 100644 ANNOUNCE-3.3.2
delete mode 100644 ANNOUNCE-3.3.3
delete mode 100644 ANNOUNCE-3.3.4
delete mode 100644 ANNOUNCE-3.4
delete mode 100644 ANNOUNCE-4.0
delete mode 100644 ANNOUNCE-4.1
delete mode 100644 ANNOUNCE-4.2
create mode 100644 CHANGELOG.md
delete mode 100644 ChangeLog
diff --git a/ANNOUNCE-3.0 b/ANNOUNCE-3.0
deleted file mode 100644
index f2d4f847..00000000
--- a/ANNOUNCE-3.0
+++ /dev/null
@@ -1,98 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.0 - A tool for managing Soft RAID under Linux
-
-I am pleased to (finally) announce the availability of
- mdadm version 3.0
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git?p=mdadm
-
-
-This is a major new version and as such should be treated with some
-caution. However it has seen substantial testing and is considerred
-to be ready for wide use.
-
-
-The significant change which justifies the new major version number is
-that mdadm can now handle metadata updates entirely in userspace.
-This allows mdadm to support metadata formats that the kernel knows
-nothing about.
-
-Currently two such metadata formats are supported:
- - DDF - The SNIA standard format
- - Intel Matrix - The metadata used by recent Intel ICH controlers.
-
-Also the approach to device names has changed significantly.
-
-If udev is installed on the system, mdadm will not create any devices
-in /dev. Rather it allows udev to manage those devices. For this to work
-as expected, the included udev rules file should be installed.
-
-If udev is not installed, mdadm will still create devices and symlinks
-as required, and will also remove them when the array is stopped.
-
-mdadm now requires all devices which do not have a standard name (mdX
-or md_dX) to live in the directory /dev/md/. Names in this directory
-will always be created as symlinks back to the standard name in /dev.
-
-The man pages contain some information about the new externally managed
-metadata. However see below for a more condensed overview.
-
-Externally managed metadata introduces the concept of a 'container'.
-A container is a collection of (normally) physical devices which have
-a common set of metadata. A container is assembled as an md array, but
-is left 'inactive'.
-
-A container can contain one or more data arrays. These are composed from
-slices (partitions?) of various devices in the container.
-
-For example, a 5 devices DDF set can container a RAID1 using the first
-half of two devices, a RAID0 using the first half of the remain 3 devices,
-and a RAID5 over thte second half of all 5 devices.
-
-A container can be created with
-
- mdadm --create /dev/md0 -e ddf -n5 /dev/sd[abcde]
-
-or "-e imsm" to use the Intel Matrix Storage Manager.
-
-An array can be created within a container either by giving the
-container name and the only member:
-
- mdadm -C /dev/md1 --level raid1 -n 2 /dev/md0
-
-or by listing the component devices
-
- mdadm -C /dev/md2 --level raid0 -n 3 /dev/sd[cde]
-
-To assemble a container, it is easiest just to pass each device in turn to
-mdadm -I
-
- for i in /dev/sd[abcde]
- do mdadm -I $i
- done
-
-This will assemble the container and the components.
-
-Alternately the container can be assembled explicitly
-
- mdadm -A /dev/md0 /dev/sd[abcde]
-
-Then the components can all be assembled with
-
- mdadm -I /dev/md0
-
-For each container, mdadm will start a program called "mdmon" which will
-monitor the array and effect any metadata updates needed. The array is
-initially assembled readonly. It is up to "mdmon" to mark the metadata
-as 'dirty' and which the array to 'read-write'.
-
-The version 0.90 and 1.x metadata formats supported by previous
-versions for mdadm are still supported and the kernel still performs
-the same updates it use to. The new 'mdmon' approach is only used for
-newly introduced metadata types.
-
-NeilBrown 2nd June 2009
diff --git a/ANNOUNCE-3.0.1 b/ANNOUNCE-3.0.1
deleted file mode 100644
index 91b44284..00000000
--- a/ANNOUNCE-3.0.1
+++ /dev/null
@@ -1,22 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.0.1 - A tool for managing Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.0.1
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git?p=mdadm
-
-
-This contains only minor bug fixes over 3.0. If you are using
-3.0, you could consider upgrading.
-
-The brief change log is:
- - Fix various segfaults
- - Fixed for --examine with containers
- - Lots of other little fixes.
-
-NeilBrown 25th September 2009
diff --git a/ANNOUNCE-3.0.2 b/ANNOUNCE-3.0.2
deleted file mode 100644
index 93643d17..00000000
--- a/ANNOUNCE-3.0.2
+++ /dev/null
@@ -1,21 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.0.2 - A tool for managing Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.0.2
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git?p=mdadm
-
-
-This just contains one bugfix over 3.0.1 - I was obviously a bit hasty
-in releasing that one.
-
-The brief change log is:
- - Fix crash when hosthost is not set, as often happens in
- early boot.
-
-NeilBrown 25th September 2009
diff --git a/ANNOUNCE-3.0.3 b/ANNOUNCE-3.0.3
deleted file mode 100644
index d6117a1d..00000000
--- a/ANNOUNCE-3.0.3
+++ /dev/null
@@ -1,29 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.0.3 - A tool for managing Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.0.3
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git?p=mdadm
-
-
-This contains a collection of bug fixes and minor enhancements over
-3.0.1.
-
-The brief change log is:
- - Improvements for creating arrays giving just a name, like 'foo',
- rather than the full '/dev/md/foo'.
- - Improvements for assembling member arrays of containers.
- - Improvements to test suite
- - Add option to change increment for RebuildNN messages reported
- by "mdadm --monitor"
- - Improvements to mdmon 'hand-over' from initrd to final root.
- - Handle merging of devices that have left an IMSM array and are
- being re-incorporated.
- - Add missing space in "--detail --brief" output.
-
-NeilBrown 22nd October 2009
diff --git a/ANNOUNCE-3.1 b/ANNOUNCE-3.1
deleted file mode 100644
index 343b85da..00000000
--- a/ANNOUNCE-3.1
+++ /dev/null
@@ -1,33 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.1 - A tool for managing Soft RAID under Linux
-
-Hot on the heals of 3.0.3 I am pleased to announce the availability of
- mdadm version 3.1
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git?p=mdadm
-
-
-It contains significant feature enhancements over 3.0.x
-
-The brief change log is:
- - Support --grow to change the layout of RAID4/5/6
- - Support --grow to change the chunksize of raid 4/5/6
- - Support --grow to change level from RAID1 -> RAID5 -> RAID6 and
- back.
- - Support --grow to reduce the number of devices in RAID4/5/6.
- - Support restart of these grow options which assembling an array
- which is partially grown.
- - Assorted tests of this code, and of different RAID6 layouts.
-
-Note that a 2.6.31 or later is needed to have access to these.
-Reducing devices in a RAID4/5/6 requires 2.6.32.
-Changing RAID5 to RAID1 requires 2.6.33.
-
-You should only upgrade if you need to use, or which to test, these
-features.
-
-NeilBrown 22nd October 2009
diff --git a/ANNOUNCE-3.1.1 b/ANNOUNCE-3.1.1
deleted file mode 100644
index 9e480dc0..00000000
--- a/ANNOUNCE-3.1.1
+++ /dev/null
@@ -1,39 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.1.1 - A tool for managing Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.1.1
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git?p=mdadm
-
-This is a bugfix release over 3.1, which was withdrawn due to serious
-bugs. So it might be best to ignore 3.1 and say that this is a significant
-feature release over 3.0.x
-
-Significant changes are:
- - RAID level conversion between RAID1, RAID5, and RAID6 are
- possible were the kernel supports it (2.6.32 at least)
- - online chunksize and layout changing for RAID5 and RAID6
- where the kernel supports it.
- - reduce the number of devices in a RAID4/5/6 array.
-
- - The default metadata is not v1.1. This metadata is stored at the
- start of the device so is safer in many ways but could interfere with
- boot loaded. The old default (0.90) is still available and fully
- supported.
-
- - The default chunksize is now 512K rather than 64K. This seems more
- appropriate for modern devices.
-
- - The default bitmap chunksize for internal bitmaps is now at least
- 64Meg as fine grained bitmaps tend to impact performance more for
- little extra gain.
-
-This release is believed to be stable and you should feel free to
-upgrade to 3.1.1.
-
-NeilBrown 19th November 2009
diff --git a/ANNOUNCE-3.1.2 b/ANNOUNCE-3.1.2
deleted file mode 100644
index 321b8bef..00000000
--- a/ANNOUNCE-3.1.2
+++ /dev/null
@@ -1,46 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.1.2 - A tool for managing Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.1.2
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git?p=mdadm
-
-This is a bugfix/stability release over 3.1.1.
-
-Significant changes are:
- - The default metadata has change again (sorry about that).
- It is now v1.2 and will hopefully stay that way. It turned
- out there with boot-block issues with v1.1 which make it
- unsuitable for a default, though in many cases it is still
- suitable to use.
- - Stopping a container is not permitted when members are still
- active
- - Add 'homehost' to the valid words for the "AUTO" config file
- line. When followed by "-all", this causes mdadm to
- auto-assemble any array belonging to this host, but not
- auto-assemble anything else.
- - Fix some bugs with "--grow --chunksize=" for changing chunksize.
- - VAR_RUN can be easily changed at compile time just like ALT_RUN.
- This gives distros more flexability in how to manage the
- pid and sock files that mdmon needs.
- - Various mdmon fixes
- - Alway make bitmap 4K-aligned if at all possible.
- - If mdadm.conf lists arrays which have inter-dependencies,
- the previously had to be listed in the "right" order. Now
- any order should work.
- - Fix --force assembly of v1.x arrays which are in the process
- of recovering.
- - Add section on 'scrubbing' to 'md' man page.
- - Various command-line-option parsing improvements.
- - ... and lots of other bug fixes.
-
-
-This release is believed to be stable and you should feel free to
-upgrade to 3.1.2
-
-NeilBrown 10th March 2010
diff --git a/ANNOUNCE-3.1.3 b/ANNOUNCE-3.1.3
deleted file mode 100644
index 95b2b6c1..00000000
--- a/ANNOUNCE-3.1.3
+++ /dev/null
@@ -1,46 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.1.3 - A tool for managing Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.1.3
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git?p=mdadm
-
-This is a bugfix/stability release over 3.1.2
-
-Significant changes are:
- - mapfile now lives in a fixed location which default to
- /dev/.mdadm/map but can be changed at compile time. This
- location is choses and most distros provide it during early
- boot and preserve it through. As long a /dev exists and is
- writable, /dev/.mdadm will be created.
- Other files file communication with mdmon live here too.
- This fixes a bug reported by Debian and Gentoo users where
- udev would spin in early-boot.
- - IMSM and DDF metadata will not be recognised on partitions
- as they should only be used on whole-disks.
- - Various overflows causes by 2G drives have been addressed.
- - A subarray of an IMSM contain can now be killed with
- --kill-subarray. Also subarrays can be renamed with
- --update-subarray
- - -If (or --incremental --fail) can be used from udev to
- fail and remove from all arrays a device which has been
- unplugged from the system. i.e. hot-unplug-support.
- - "mdadm /dev/mdX --re-add missing" will look for any device
- that looks like it should be a member of /dev/mdX but isn't
- and will automatically --re-add it
- - Now compile with -Wextra to get extra warnings.
- - Lots of minor bug fixes, documentation improvements, etcc
-
-This release is believed to be stable and you should feel free to
-upgrade to 3.1.3
-
-It is expected that the next release will be 3.2 with a number of new
-features. 3.1.4 will only happen if important bugs show up before 3.2
-is stable.
-
-NeilBrown 6th August 2010
diff --git a/ANNOUNCE-3.1.4 b/ANNOUNCE-3.1.4
deleted file mode 100644
index c157a36a..00000000
--- a/ANNOUNCE-3.1.4
+++ /dev/null
@@ -1,37 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.1.4 - A tool for managing Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.1.4
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git?p=mdadm
-
-This is a bugfix/stability release over 3.1.3.
-3.1.3 had a couple of embarrasing regressions and a couple of other
-issues surfaces which had easy fixes so I decided to make a 3.1.4
-release after all.
-
-Two fixes related to configs that aren't using udev:
- - Don't remove md devices which 'standard' names on --stop
- - Allow dev_open to work on read-only /dev
-And fixed regressions:
- - Allow --incremental to add spares to an array
- - Accept --no-degraded as a deprecated option rather than
- throwing an error
- - Return correct success status when --incrmental assembling
- a container which does not yet have enough devices.
- - Don't link mdadm with pthreads, only mdmon needs it.
- - Fix compiler warning due to bad use of snprintf
- - Fix spare migration
-
-This release is believed to be stable and you should feel free to
-upgrade to 3.1.4
-
-It is expected that the next release will be 3.2 with a number of new
-features.
-
-NeilBrown 31st August 2010
diff --git a/ANNOUNCE-3.1.5 b/ANNOUNCE-3.1.5
deleted file mode 100644
index baa1f921..00000000
--- a/ANNOUNCE-3.1.5
+++ /dev/null
@@ -1,42 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.1.5 - A tool for managing Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.1.5
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git?p=mdadm
-
-This is a bugfix/stability release over 3.1.4. It contains all the
-important bugfixes found while working on 3.2 and 3.2.1. It will be
-the last 3.1.x release - 3.2.1 is expected to be released in a few days.
-
-Changes include:
- - Fixes for v1.x metadata on big-endian machines.
- - man page improvements
- - Improve '--detail --export' when run on partitions of an md array.
- - Fix regression with removing 'failed' or 'detached' devices.
- - Fixes for "--assemble --force" in various unusual cases.
- - Allow '-Y' to mean --export. This was documented but not implemented.
- - Various fixed for handling 'ddf' metadata. This is now more reliable
- but could benefit from more interoperability testing.
- - Correctly list subarrays of a container in "--detail" output.
- - Improve checks on whether the requested number of devices is supported
- by the metadata - both for --create and --grow.
- - Don't remove partitions from a device that is being included in an
- array until we are fully committed to including it.
- - Allow "--assemble --update=no-bitmap" so an array with a corrupt
- bitmap can still be assembled.
- - Don't allow --add to succeed if it looks like a "--re-add" is probably
- wanted, but cannot succeed. This avoids inadvertently turning
- devices into spares when an array is failed.
-
-This release is believed to be stable and you should feel free to
-upgrade to 3.1.5
-
-
-NeilBrown 23rd March 2011
-
diff --git a/ANNOUNCE-3.2 b/ANNOUNCE-3.2
deleted file mode 100644
index 9e282bc6..00000000
--- a/ANNOUNCE-3.2
+++ /dev/null
@@ -1,77 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.2 - A tool for managing Soft RAID under Linux (DEVEL ONLY)
-
-I am pleased to announce the availability of
- mdadm version 3.2
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm devel-3.2
- http://neil.brown.name/git?p=mdadm
-
-This is a "Developers only" release. Please don't consider using it
-or making it available to others without reading the following.
-
-
-By far the most significant change in this release related to the
-management of reshaping arrays. This code has been substantially
-re-written so that it can work with 'externally managed metadata' -
-Intel's IMSM in particular. We now support level migration and
-OnLine Capacity Expansion on these arrays.
-
-However, while the code largely works it has not been tested
-exhaustively so there are likely to be problems. As the reshape code
-for native metadata arrays was changed as part of this rewrite these
-problems could also result in regressions for reshape of native
-metadata.
-
-It is partly to encourage greater testing that this release is being
-made. Any reports of problem - particular reproducible recipes for
-triggering the problems - will be gratefully received.
-
-It is hopped that a "3.2.1" release will be available in early March
-which will be a bugfix release over this and can be considered
-suitable for general use.
-
-Other changes of note:
-
- - Policy framework.
- Various policy statements can be made in the mdadm.conf to guide
- the behaviour of mdadm, particular with regards to how new devices
- are treated by "mdadm -I".
- Depending on the 'action' associated with a device (identified by
- its 'path') such need devices can be automatically re-added to and
- existing array that they previously fell out off, or automatically
- added as a spare if they appear to contain no data.
-
- - mdadm now has a limited understanding of partition tables. This
- allows the policy framework to make decisions about partitioned
- devices as well.
-
- - --incremental --remove can be told what --path the device was on,
- and this info will be recorded so that another device appearing at
- the same physical location can be preferentially added to the same
- array (provides the spare-same-slot action policy applied to the
- path).
-
- - A new flags "--invalid-backup" flag is available in --assemble
- mode. This can be used to re-assemble an array which was stopping
- in the middle of a reshape, and for which the 'backup file' is no
- longer available or is corrupted. The array may have some
- corruption in it at the point where reshape was up to, but at least
- the rest of the array will become available.
-
-
- - Various internal restructuring - more is needed.
-
-
-Any feed back and bug reports are always welcomed at:
- linux-raid@vger.kernel.org
-
-And please: don't use this in production - particularly not the
---grow functionality.
-
-NeilBrown 1st February 2011
-
-
diff --git a/ANNOUNCE-3.2.1 b/ANNOUNCE-3.2.1
deleted file mode 100644
index 0e7826ca..00000000
--- a/ANNOUNCE-3.2.1
+++ /dev/null
@@ -1,75 +0,0 @@
-
-
-I am pleased to announce the availability of
- mdadm version 3.2.1
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git/mdadm
-
-Many of the changes in this release are of internal interest only,
-restructuring and refactoring code and so forth.
-
-Most of the bugs found and fixed during development for 3.2.1 have been
-back-ported for the recently-release 3.1.5 so this release primarily
-provides a few new features over 3.1.5.
-
-They include:
- - policy framework
- Policy can be expressed for moving spare devices between arrays, and
- for how to handle hot-plugged devices. This policy can be different
- for devices plugged in to different controllers etc.
- This, for example, allows a configuration where when a device is plugged
- in it is immediately included in an md array as a hot spare and
- possibly starts recovery immediately if an array is degraded.
-
- - some understanding of mbr and gpt paritition tables
- This is primarly to support the new hot-plug support. If a
- device is plugged in and policy suggests it should have a partition table,
- the partition table will be copied from a suitably similar device, and
- then the partitions will hot-plug and can then be added to md arrays.
-
- - "--incremental --remove" can remember where a device was removed from
- so if a device gets plugged back in the same place, special policy applies
- to it, allowing it to be included in an array even if a general hotplug
- will not be included.
-
- - enhanced reshape options, including growing a RAID0 by converting to RAID4,
- restriping, and converting back. Also convertions between RAID0 and
- RAID10 and between RAID1 and RAID10 are possible (with a suitably recent
- kernel).
-
- - spare migration for IMSM arrays.
- Spare migration can now work across 'containers' using non-native metadata
- and specifically Intel's IMSM arrays support spare migrations.
-
- - OLCE and level migration for Intel IMSM arrays.
- OnLine Capacity Expansion and level migration (e.g. RAID0 -> RAID5) is
- supported for Intel Matrix Storage Manager arrays.
- This support is currently 'experimental' for technical reasons. It can
- be enabled with "export MDADM_EXPERIMENTAL=1"
-
- - avoid including wayward devices
- If you split a RAID1, mount the two halves as two separate degraded RAID1s,
- and then later bring the two back together, it is possible that the md
- metadata won't properly show that one must over-ride the other.
- mdadm now does extra checking to detect this possibilty and avoid
- potentially corrupting data.
-
- - remove any possible confusion between similar options.
- e.g. --brief and --bitmap were mapped to 'b' and mdadm wouldn't
- notice if one was used where the other was expected.
-
- - allow K,M,G suffixes on chunk sizes
-
-
-While mdadm-3.2.1 is considered to be reasonably stable, you should
-only use it if you want to try out the new features, or if you
-generally like to be on the bleeding edge. If the new features are not
-important to you, then 3.1.5 is probably the appropriate version to be using
-until 3.2.2 comes out.
-
-NeilBrown 28th March 2011
diff --git a/ANNOUNCE-3.2.2 b/ANNOUNCE-3.2.2
deleted file mode 100644
index b70d18b9..00000000
--- a/ANNOUNCE-3.2.2
+++ /dev/null
@@ -1,36 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.2.2 - A tool for managing Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.2.2
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git/mdadm
-
-This release is largely a stablising release for the 3.2 series.
-Many of the changes just fix bugs introduces in 3.2 or 3.2.1.
-
-There are some new features. They are:
- - reshaping IMSM (Intel metadata) arrays is no longer 'experimental',
- it should work properly and be largely compatible with IMSM drivers in
- other platforms.
- - --assume-clean can be used with --grow --size to avoid resyncing the
- new part of the array. This is only support with very new kernels.
- - RAID0 arrays can have chunksize which is not a power of 2. This has been
- supported in the kernel for a while but is only now supprted by
- mdadm.
-
- - A new tool 'raid6check' is available which can check a RAID6 array,
- or part of it, and report which device is most inconsistent with the
- others if any stripe is inconsistent. This is still under development
- and does not have a man page yet. If anyone tries it out and has any
- questions or experience to report, they would be most welcome on
- linux-raid@vger.kernel.org.
-
-Future releases in the 3.2 series will only be made if bugfixes are needed.
-The next release to add features is expected to be 3.3.
-
-NeilBrown 17th June 2011
diff --git a/ANNOUNCE-3.2.3 b/ANNOUNCE-3.2.3
deleted file mode 100644
index 8a8dba46..00000000
--- a/ANNOUNCE-3.2.3
+++ /dev/null
@@ -1,24 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.2.3 - A tool for managing Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.2.3
-
-It is available at the usual places:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://neil.brown.name/mdadm
- http://neil.brown.name/git/mdadm
-
-This release is largely a bugfix release for the 3.2 series with many
-minor fixes with little or no impact.
-
-The largest single area of change is support for reshape of Intel
-IMSM arrays (OnLine Capacity Explansion and Level Migtration).
-Among other fixes, this now has a better chance of surviving if a
-device fails during reshape.
-
-Upgrading is recommended - particularly if you use mdadm for IMSM
-arrays - but not essential.
-
-NeilBrown 23rd December 2011
diff --git a/ANNOUNCE-3.2.4 b/ANNOUNCE-3.2.4
deleted file mode 100644
index e3216786..00000000
--- a/ANNOUNCE-3.2.4
+++ /dev/null
@@ -1,144 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.2.4 - A tool for managing Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.2.4
-
-It is available at the usual places, now including github:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://github.com/neilbrown/mdadm
- git://neil.brown.name/mdadm
- http://neil.brown.name/git/mdadm
-
-This release is largely a bugfix release for the 3.2 series with many
-minor fixes with little or no impact.
-
-"--oneline" log of changes is below. Some notable ones are:
-
- - --offroot argument to improve interactions between mdmon and initrd
- - --prefer argument to select which /dev names to display in some
- circumstances.
- - relax restructions on when "--add" will be allowed
- - Fix bug with adding write-intent-bitmap to active array
- - Now defaults to "/run/mdadm" for storing run-time files.
-
-Upgrading is encouraged.
-
-The next mdadm release is expected to be 3.3 with a number of new
-features.
-
-NeilBrown 9th May 2012
-
-77b3ac8 monitor: make return from read_and_act more symbolic.
-68226a8 monitor: ensure we retry soon when 'remove' fails.
-8453f8d fix: Monitor sometimes crashes
-90fa1a2 Work around gcc-4.7's strict aliasing checks
-0c4304c fix: container creation with --incremental used.
-5d1c7cd FIX: External metadata sometimes is not updated
-3c20f98 FIX: mdmon check in reshape_container() can cause a problem
-59ab9f5 FIX: Typo error in fprint command
-9587c37 imsm: load_super_imsm_all function refactoring
-ec50f7b imsm: load_imsm_super_all supports loading metadata from the device list
-ca9de18 imsm: validate the number of imsm volumes per controller
-30602f5 imsm: display fd in error trace when when store_imsm_mpb failes
-eb155f6 mdmon: Use getopt_long() to parse command line options
-08ca2ad Add --offroot argument to mdadm
-da82751 Add --offroot argument to mdmon
-a0963a8 Spawn mdmon with --offroot if mdadm was launched with --offroot
-f878b24 imsm: fix, the second array need to have the whole available space on devices
-d597705 getinfo_super1: Use MaxSector in place of sb->size
-6ef8905 super1: make aread/awrite always use an aligned buffer.
-de5a472 Remove avail_disks arg from 'enough'.
-da8fe5a Assemble: fix --force assemble during reshape.
-b10c663 config: fix handing of 'homehost' in AUTO line.
-92d49ec FIX: NULL pointer to strdup() can be passed
-d2bde6d imsm: FIX: No new missing disks are allowed during general migration
-111e9fd FIX: Array is not run when expansion disks are added
-bf5cf7c imsm: FIX: imsm_get_allowed_degradation() doesn't count degradation for raid1
-50927b1 Fix: Sometimes mdmon throws core dump during reshape
-78340e2 Flush mdmon before next reshape step during container operation
-e174219 imsm: FIX: Chunk size migration problem
-f93346e FIX: use md position to reshape restart
-6a75c8c imsm: FIX: use md position to reshape restart
-51d83f5 imsm: FIX: Clear migration record when migration switches to next volume.
-e1dd332 FIX: restart reshape when reshape process is stopped just between 2 reshapes
-1ca90aa FIX: Do not try to (continue) reshape using inactive array
-9f1b0f0 config: conf_match should ignore devname when not set.
-d669228 Use posix_memalign() for memory used to write bitmaps
-178950e FIX: Changes in '0' case for reshape position verification
-9200d41 avoid double-free upon "old buggy kernel" sysfs_read failure
-4011421 Print error message if failing to write super for 1.x metadata
-0011874 Use MDMON_DIR for pid files created in Monitor.c
-56d1885 Assemble: don't use O_EXCL until we have checked device content.
-b720636 Assemble: support assembling of a RAID0 being reshaped.
-c69ffac Manage: allow --re-add to failed array.
-52f07f5 Reset bad flag on map update
-911cead super1: support superblocks up to 4K.
-ad6db3c Create: reduce the verbosity of 'default_layout'.
-b2bfdfa super1.c don't keep recalculating bitmap pointer
-4122675 Define and use SUPER1_SIZE for allocations
-1afa930 init_super1() memset full buffer allocated for superblock
-2de0b8a match_metadata_desc1(): Use calloc instead of malloc+memset
-3c0bcd4 Use 4K buffer alignment for superblock allocations
-308340a Use struct align_fd to cache fd's block size for aligned reads/writes
-65ed615 match_metadata_desc0(): Use calloc instead of malloc+memset
-de89706 Generalize ROUND_UP() macro and introduce matching ROUND_UP_PTR()
-0a2f189 super1.c: use ROUND_UP/ROUND_UP_PTR
-654a381 super-intel.c: Use ROUND_UP() instead of manually coding it
-42d5dfd __write_init_super_ddf(): Use posix_memalign() instead of static aligned buffer
-d4633e0 Examine: fix array size calculation for RAID10.
-e62b778 Assemble: improve verbose logging when including old devices.
-0073a6e Remove possible crash during RAID6 -> RAID5 reshape.
-69fe207 Incremental: fix adding devices with --incremental
-bcbb311 Manage: replace 'return 1' with 'goto abort'.
-9f58469 Manage: freeze recovery while adding multiple devices.
-ae6c05a Create: round off size for RAID1 arrays.
-5ca3a90 Grow: print useful error when converting RAID1->RAID5 will fail.
-c07d640 Fix tests/05r1-re-add-nosupper
-2d762ad Fix the new ROUND_UP macro.
-fd324b0 sysfs: fixed sysfs_freeze_array array to work properly with Manage_subdevs.
-5551b11 imsm: avoid overflows for disks over 1TB
-97f81ee clear hi bits if not used after loading metadata from disk
-e03640b simplify calculating array_blocks
-29cd082 show 2TB volumes/disks support in --detail-platform
-2cc699a check volume size in validate_geometry_imsm_orom
-9126b9a check that no disk over 2TB is used to create container when no support
-027c374 imsm: set 2tb disk attribute for spare
-3556c2f Fix typo: wan -> want
-15632a9 parse_size: distinguish between 0 and error.
-fbdef49 Bitmap_offset is a signed number
-508a7f1 super1: leave more space in front of data by default.
-40110b9 Fix two typos in fprintf messages
-342460c mdadm man page: fix typo
-0e7f69a imsm: display maximum volumes per controller and array
-36fd8cc imsm: FIX: Update function imsm_num_data_members() for Raid1/10
-7abc987 imsm: FIX: Add volume size expand support to imsm_analyze_change()
-f3871fd imsm: Add new metadata update for volume size expansion
-54397ed imsm: Execute size change for external metatdata
-016e00f FIX: Support metadata changes rollback
-fbf3d20 imsm: FIX: Support metadata changes rollback
-44f6f18 FIX: Extend size of raid0 array
-7e7e9a4 FIX: Respect metadata size limitations
-65a9798 FIX: Detect error and rollback metadata
-13bcac9 imsm: Add function imsm_get_free_size()
-b130333 imsm: Support setting max size for size change operation
-c41e00b imsm: FIX: Component size alignment check
-58d26a2 FIX: Size change is possible as standalone change only
-4aecb54 FIX: Assembled second array is in read only state during reshape
-ae2416e FIX: resolve make everything compilation error
-480f356 Raid limit of 1024 when scanning for devices.
-c2ecf5f Add --prefer option for --detail and --monitor
-0a99975 Relax restrictions on when --add is permitted.
-7ce0570 imsm: fix: rebuild does not continue after reboot
-b51702b fix: correct extending size of raid0 array
-34a1395 Fix sign extension of bitmap_offset in super1.c
-012a864 Introduce sysfs_set_num_signed() and use it to set bitmap/offset
-5d7b407 imsm: fix: thunderdome may drop 2tb attribute
-5ffdc2d Update test for "is udev active".
-96fd06e Adjust to new standard of /run
-974e039 test: don't worry too much about array size.
-b0a658f Grow: failing the set the per-device size is not an error.
-36614e9 super-intel.c: Don't try to close negative fd
-562aa10 super-intel.c: Fix resource leak from opendir()
-
diff --git a/ANNOUNCE-3.2.5 b/ANNOUNCE-3.2.5
deleted file mode 100644
index 396da12a..00000000
--- a/ANNOUNCE-3.2.5
+++ /dev/null
@@ -1,31 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.2.5 - A tool for managing Soft RAID under Linux
-
-I am somewhat disappointed to have to announce the availability of
- mdadm version 3.2.5
-
-It is available at the usual places, now including github:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://github.com/neilbrown/mdadm
- git://neil.brown.name/mdadm
- http://neil.brown.name/git/mdadm
-
-This release primarily fixes a serious regression in 3.2.4.
-This regression does *not* cause any risk to data. It simply
-means that adding a device with "--add" would sometime fail
-when it should not.
-
-The fix also includes a couple of minor fixes such as making
-the "--layout=preserve" option to "--grow" work again.
-
-A reminder that the default location for runtime files is now
-"/run/mdadm". If you compile this for a distro that does not
-have "/run", you will need to compile with an alternate setting for
-MAP_DIR. e.g.
- make MAP_DIR=/var/run/mdadm
-or
- make MAP_DIR=/dev/.mdadm
-
-NeilBrown 18th May 2012
-
diff --git a/ANNOUNCE-3.2.6 b/ANNOUNCE-3.2.6
deleted file mode 100644
index f5cfd492..00000000
--- a/ANNOUNCE-3.2.6
+++ /dev/null
@@ -1,57 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.2.6 - A tool for managing Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.2.6
-
-It is available at the usual places, now including github:
- countrycode=xx.
- http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://github.com/neilbrown/mdadm
- git://neil.brown.name/mdadm
- http://neil.brown.name/git/mdadm
-
-This is a stablity release which adds a number of bugfixs to 3.2.5.
-There are no real stand-out fixes, just lots of little bits and pieces.
-
-Below is the "git log --oneline --reverse" list of changes since
-3.2.5.
-
-NeilBrown 25th October 2012
-
-b7e05d2 udev-rules: prevent systemd from mount devices before they are ready.
-0d478e2 mdadm: Fix Segmentation fault.
-42f0ca1 imsm: fix: correct checking volume's degradation
-fcf2195 Monitor: fix inconsistencies in values for ->percent
-5f862fb Monitor: Report NewArray when an array the disappeared, reappears.
-6f51b1c Monitor: fix reporting for Fail vs FailSpare etc.
-68ad53b mdmon: fix arg parsing.
-517f135 Assemble: don't leak memory with fdlist.
-090900c udev-rules: prevent systemd from mount devices before they are ready.
-446e000 sha1.h: remove ansidecl.h header inclusion
-ec894f5 Manage: zero metadata before adding to 'external' array.
-3a84db5 ddf: allow a non-spare to be used to recovery a missing device.
-c5d61ca ddf: hack to fix container recognition.
-23084aa mdmon: fix arg processing for -a
-c4e96a3 mdmon: allow --takeover when original was started with --offroot
-80841df find_free_devnum: avoid auto-using names in /etc/mdadm.conf
-c5c56d6 mapfile: fix mapfile rebuild for containers
-aec89f6 fix segfaults in Detail()
-2117ad1 Fix 'enough' function for RAID10.
-0bc300d Use --offroot flag when assembling md arrays via --incrmental
-ac78f24 Grow: make warning about old metadata more explicit.
-14026ab Replace sha1.h with slightly older version.
-6f6809f Add zlib license to crc32.c
-5267ba0 Handles spaces in array names better.
-c51f288 imsm: allow --assume-clean to work.
-acf7076 Grow: allow --grow --continue to work for native metadata.
-335d2a6 Grow: fix a couple of typos with --assume-clean usage
-9ff1427 Fix open_container
-3713633 mdadm: super0: do not override uuid with homehost
-31bff58 Trivial bugfix and spelling fixes.
-e1e539f Detail: don't report a faulty device as 'spare' or 'rebuilding'.
-22a6461 super0: allow creation of array on 2TB+ devices.
-a5d47a2 Create new md devices consistently
-eb48676 Monitor: don't complain about non-monitorable arrays in mdadm.conf
-ecdf2d7 Query: don't be confused by partition tables.
-f7b75c1 Query: allow member of non-0.90 arrays to be better reported.
diff --git a/ANNOUNCE-3.3 b/ANNOUNCE-3.3
deleted file mode 100644
index f770aa13..00000000
--- a/ANNOUNCE-3.3
+++ /dev/null
@@ -1,63 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.3 - A tools for managing md Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.3
-
-It is available at the usual places:
- http://www.kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://github.com/neilbrown/mdadm
- git://neil.brown.name/mdadm
- http://git.neil.brown.name/git/mdadm
-
-This is a major new release so don't be too surprised if there are a
-few issues. If I hear about them they will be fixed in 3.3.1.
-git log reports nearly 500 changes since 3.2.6 so I won't list them
-all.
-
-Some highlights are:
-
-- Some array reshapes can proceed without needing backup file.
- This is done by changing the 'data_offset' so we never need to write
- any data back over where it was before. If there is no "head space"
- or "tail space" to allow data_offset to change, the old mechanism
- with a backup file can still be used.
-- RAID10 arrays can be reshaped to change the number of devices,
- change the chunk size, or change the layout between 'near'
- and 'offset'.
- This will always change data_offset, and will fail if there is no
- room for data_offset to be moved.
-- "--assemble --update=metadata" can convert a 0.90 array to a 1.0 array.
-- bad-block-logs are supported (but not heavily tested yet)
-- "--assemble --update=revert-reshape" can be used to undo a reshape
- that has just been started but isn't really wanted. This is very
- new and while it passes basic tests it cannot be guaranteed.
-- improved locking between --incremental and --assemble
-- uses systemd to run "mdmon" if systemd is configured to do that.
-- kernel names of md devices can be non-numeric. e.g. "md_home" rather than
- "md0". This will probably confuse lots of other tools, so you need to
- echo CREATE names=yes >> /etc/mdadm.conf
- or the feature will not be used. (you also need a reasonably new kernel).
-- "--stop" can be given a kernel name instead of a device name. i.e
- mdadm --stop md4
- will work even if /dev/md4 doesn't exist.
-- "--detail --export" has some information about the devices in the array
-- --dump and --restore can be used to backup and restore the metadata on an
- array.
-- Hot-replace is supported with
- mdadm /dev/mdX --replace /dev/foo
- and
- mdadm /dev/mdX --replace /dev/foo --with /dev/bar
-- Config file can be a directory in which case all "*.conf" files are
- read in lexical order.
- Default is to read /etc/mdadm.conf and then /etc/mdadm.conf.d
- Thus
- echo CREATE name=yes > /etc/mdadm.conf.d/names.conf
- will also enable the use of named md devices.
-
-- Lots of improvements to DDF support including adding support for
- RAID10 (thanks Martin Wilck).
-
-and lots of bugfixes and other little changes.
-
-NeilBrown 3rd September 2013
diff --git a/ANNOUNCE-3.3.1 b/ANNOUNCE-3.3.1
deleted file mode 100644
index 7d5e666e..00000000
--- a/ANNOUNCE-3.3.1
+++ /dev/null
@@ -1,23 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.3.1 - A tool for managing md Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.3.1
-
-It is available at the usual places:
- http://www.kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://github.com/neilbrown/mdadm
- git://neil.brown.name/mdadm
- http://git.neil.brown.name/git/mdadm.git
-
-The main changes are:
- - lots of work on "DDF" support. Hopefully it will be more stable
- now. Bug reports are always welcome.
- - improved interactions with 'systemd'. Where possible, background
- tasks are run from systemd (if it is present) rather then forking
- disassociationg from the session. This is important because udev
- doesn't really let you disassociate.
-
-though there are a number of other little bug fixes too.
-
-NeilBrown 5th June 2014
diff --git a/ANNOUNCE-3.3.2 b/ANNOUNCE-3.3.2
deleted file mode 100644
index 6b549611..00000000
--- a/ANNOUNCE-3.3.2
+++ /dev/null
@@ -1,16 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.3.2 - A tool for managing md Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.3.2
-
-It is available at the usual places:
- http://www.kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://github.com/neilbrown/mdadm
- git://neil.brown.name/mdadm
- http://git.neil.brown.name/git/mdadm.git
-
-Changes since 3.3.1 are mostly little bugfixes and some man-page
-updates.
-
-NeilBrown 21st August 2014
diff --git a/ANNOUNCE-3.3.3 b/ANNOUNCE-3.3.3
deleted file mode 100644
index ac1b2173..00000000
--- a/ANNOUNCE-3.3.3
+++ /dev/null
@@ -1,18 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.3.3 - A tool for managing md Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.3.3
-
-It is available at the usual places:
- http://www.kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://github.com/neilbrown/mdadm
- git://neil.brown.name/mdadm
- http://git.neil.brown.name/git/mdadm.git
-
-The 100 changes since 3.3.3 are mostly little bugfixes and some improvements
-to the selftests.
-raid6check now handle all RAID6 layouts including DDF correctly.
-See git log for the rest.
-
-NeilBrown 24th July 2015
diff --git a/ANNOUNCE-3.3.4 b/ANNOUNCE-3.3.4
deleted file mode 100644
index 52b94562..00000000
--- a/ANNOUNCE-3.3.4
+++ /dev/null
@@ -1,37 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.3.4 - A tool for managing md Soft RAID under Linux
-
-I am somewhat disappointed to have to announce the availability of
- mdadm version 3.3.4
-
-It is available at the usual places:
- http://www.kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://github.com/neilbrown/mdadm
- git://neil.brown.name/mdadm
- http://git.neil.brown.name/git/mdadm.git
-
-In mdadm-3.3 a change was made to how IMSM (Intel Matrix Storage
-Manager) metadata was handled. Previously an IMSM array would only
-be assembled if it was attached to an IMSM controller.
-
-In 3.3 this was relaxed as there are circumstances where the
-controller is not properly detected. Unfortunately this has negative
-consequences which have only just come to light.
-
-If you have an IMSM RAID1 configured and then disable RAID in the
-BIOS, the metadata will remain on the devices. If you then install
-some other OS on one device and then install Linux on the other, Linux
-might eventually start noticing the IMSM metadata (depending a bit on whether
-mdadm is included in the initramfs) and might start up the RAID1. This could
-copy one device over the other, thus trashing one of the installations.
-
-Not good.
-
-So with this release IMSM arrays will only be assembled if attached to
-an IMSM controller, or if "--force" is given to --assemble, or if the
-environment variable IMSM_NO_PLATFORM is set (used primarily for
-testing).
-
-I strongly recommend upgrading to 3.3.4 if you are using 3.3 or later.
-
-NeilBrown 3rd August 2015.
diff --git a/ANNOUNCE-3.4 b/ANNOUNCE-3.4
deleted file mode 100644
index 2689732d..00000000
--- a/ANNOUNCE-3.4
+++ /dev/null
@@ -1,24 +0,0 @@
-Subject: ANNOUNCE: mdadm 3.4 - A tool for managing md Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 3.4
-
-It is available at the usual places:
- http://www.kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://github.com/neilbrown/mdadm
- git://neil.brown.name/mdadm
- http://git.neil.brown.name/git/mdadm
-
-The new second-level version number reflects significant new
-functionality, particular support for journalled RAID5/6 and clustered
-RAID1. This new support is probably still buggy. Please report bugs.
-
-There are also a number of fixes for Intel's IMSM metadata support,
-and an assortment of minor bug fixes.
-
-I plan for this to be the last release of mdadm that I provide as I am
-retiring from MD and mdadm maintenance. Jes Sorensen has volunteered
-to oversee mdadm for the next while. Thanks Jes!
-
-NeilBrown 28th January 2016
diff --git a/ANNOUNCE-4.0 b/ANNOUNCE-4.0
deleted file mode 100644
index f79c5408..00000000
--- a/ANNOUNCE-4.0
+++ /dev/null
@@ -1,22 +0,0 @@
-Subject: ANNOUNCE: mdadm 4.0 - A tool for managing md Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 4.0
-
-It is available at the usual places:
- http://www.kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://git.kernel.org/pub/scm/utils/mdadm/mdadm.git
- http://git.kernel.org/cgit/utils/mdadm/
-
-The update in major version number primarily indicates this is a
-release by it's new maintainer. In addition it contains a large number
-of fixes in particular for IMSM RAID and clustered RAID support. In
-addition this release includes support for IMSM 4k sector drives,
-failfast and better documentation for journaled RAID.
-
-This is my first release of mdadm. Please thank Neil Brown for his
-previous work as maintainer and blame me for all the bugs I caused
-since taking over.
-
-Jes Sorensen, 2017-01-09
diff --git a/ANNOUNCE-4.1 b/ANNOUNCE-4.1
deleted file mode 100644
index a273b9a0..00000000
--- a/ANNOUNCE-4.1
+++ /dev/null
@@ -1,16 +0,0 @@
-Subject: ANNOUNCE: mdadm 4.1 - A tool for managing md Soft RAID under Linux
-
-I am pleased to announce the availability of
- mdadm version 4.1
-
-It is available at the usual places:
- http://www.kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://git.kernel.org/pub/scm/utils/mdadm/mdadm.git
- http://git.kernel.org/cgit/utils/mdadm/
-
-The update constitutes more than one year of enhancements and bug fixes
-including for IMSM RAID, Partial Parity Log, clustered RAID support,
-improved testing, and gcc-8 support.
-
-Jes Sorensen, 2018-10-01
diff --git a/ANNOUNCE-4.2 b/ANNOUNCE-4.2
deleted file mode 100644
index 8b22d09f..00000000
--- a/ANNOUNCE-4.2
+++ /dev/null
@@ -1,19 +0,0 @@
-Subject: ANNOUNCE: mdadm 4.2 - A tool for managing md Soft RAID under Linux
-
-I am pleased to finally announce the availability of mdadm-4.2.
-get 4.2 out the door soon.
-
-It is available at the usual places:
- http://www.kernel.org/pub/linux/utils/raid/mdadm/
-and via git at
- git://git.kernel.org/pub/scm/utils/mdadm/mdadm.git
- http://git.kernel.org/cgit/utils/mdadm/
-
-The release includes more than two years of development and bugfixes,
-so it is difficult to remember everything. Highlights include
-enhancements and bug fixes including for IMSM RAID, Partial Parity
-Log, clustered RAID support, improved testing, and gcc-9 support.
-
-Thank you everyone who contributed to this release!
-
-Jes Sorensen, 2021-12-30
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 00000000..c1997ba7
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,368 @@
+# Release [mdadm-4.3](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-4.3)
+
+Features:
+- **IMSM_NO_PLATFORM** boot parameter support from Neil Brown.
+- **--write-zeros** option support by Logan Gunthorpe.
+- **IMSM** monetization by VMD register from Mateusz Grzonka.
+- RST SATA under VMD support from Kevin Friedberg.
+- Strong name rules from Mariusz Tkaczyk.
+
+Fixes:
+- Unify failed raid behavior from Coly Li.
+- Rework of **--update** options from Mateusz Kusiak.
+- **mdmon-initrd** service from Neil Brown.
+- **IMSM** expand functionality rework from Mariusz Tkaczyk.
+- Mdmonitor improvements from Mateusz Grzonka.
+- Failed state verification from Mateusz Kusiak and Kinga Tanska.
+
+# Release [mdadm-4.2](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-4.2)
+
+The release includes more than two years of development and bugfixes, so it is difficult to
+remember everything. Highlights include enhancements and bug fixes including for **IMSM** RAID,
+Partial Parity Log, clustered RAID support, improved testing, and gcc-9 support.
+
+# Release [mdadm-4.1](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-4.1)
+
+The update constitutes more than one year of enhancements and bug fixes including for **IMSM**
+RAID, Partial Parity Log, clustered RAID support, improved testing, and gcc-8 support.
+
+# Release [mdadm-4.0](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-4.0)
+
+The update in major version number primarily indicates this is a release by it's new maintainer.
+In addition it contains a large number of fixes in particular for IMSM RAID and clustered RAID
+support. In addition, this release includes support for IMSM 4k sector drives, failfast and better
+documentation for journaled RAID.
+
+This is my first release of mdadm. Please thank Neil Brown for his previous work as maintainer and
+blame me for all the bugs I caused since taking over.
+
+# Release [mdadm-3.4](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.4)
+
+- Support for journalled RAID5/6 and clustered RAID1. This new support is probably still buggy.
+ Please report bugs.
+
+- There are also a number of fixes for **IMSM** support and an assortment of minor bug fixes.
+
+- I plan for this to be the last release of mdadm that I provide as I am retiring from MD and mdadm
+ maintenance. Jes Sorensen has volunteered to oversee mdadm for the next while. Thanks Jes!
+
+# Release [mdadm-3.3.4](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.3.4)
+
+**I strongly recommend upgrading to 3.3.4 if you are using 3.3 or later with IMSM.**
+
+- **IMSM** metadata assemble fixes.
+
+ In mdadm-3.3 a change was made to how **IMSM** metadata was handled. Previously an **IMSM** array
+ would only be assembled if it was attached to an **IMSM** controller. In 3.3 this was relaxed as
+ there are circumstances where the controller is not properly detected. Unfortunately, this has
+ negative consequences which have only just come to light.
+
+ If you have an IMSM RAID1 configured and then disable RAID in the BIOS, the metadata will remain
+ on the devices. If you then install some other OS on one device and then install Linux on the
+ other, Linux might eventually start noticing the IMSM metadata (depending a bit on whether
+ mdadm is included in the initramfs) and might start up the RAID1. This could copy one device over
+ the other, thus trashing one of the installations.
+
+ So, with this release IMSM arrays will only be assembled if attached to an **IMSM** controller,
+ or if **--force** is given to **--assemble**, or if the environment variable
+ **IMSM_NO_PLATFORM=1** is set (used primarily for testing).
+
+# Release [mdadm-3.3.3](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.3.3)
+
+- The 100 changes since 3.3.3 are mostly little bugfixes and some improvements to the self-tests.
+- raid6check now handle all RAID6 layouts including **DDF** correctly. See git log for the rest.
+
+# Release [mdadm-3.3.2](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.3.2)
+
+- Little bugfixes and some man-page updates.
+
+# Release [mdadm-3.3.1](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.3.1)
+
+- lots of work on **DDF** support.
+- Improved interactions with **systemd**. Where possible, background tasks are run from systemd
+ rather than forking.
+- Number of other little bug fixes too.
+
+# Release [mdadm-3.3](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.3)
+
+- Some array reshapes can proceed without needing backup file. This is done by changing the
+ data_offset* so we never need to write any data back over where it was before. If there is no
+ 'head space' or 'tail space' to allow *data_offset* to change, the old mechanism with a backup
+ file can still be used.
+
+- RAID10 arrays can be reshaped to change the number of devices, change the chunk size, or change
+ the layout between *near* and *offset*.
+ This will always change *data_offset*, and will fail if there is no room for *data_offset* to be
+ moved.
+
+- **--assemble --update=metadata** can convert a **0.90** array to a **1.0** array.
+
+- **bad-block-logs** are supported (but not heavily tested yet).
+
+- **--assemble --update=revert-reshape** can be used to undo a reshape that has just been started
+ but isn't really wanted. This is very new and while it passes basic tests it cannot be
+ guaranteed.
+
+- improved locking between **--incremental** and **--assemble**.
+
+- uses systemd to run **mdmon** if systemd is configured to do that.
+- kernel names of md devices can be non-numeric. e.g. "md_home" rather than
+ "md0". This will probably confuse lots of other tools, so you need to
+ **echo CREATE names=yes >> /etc/mdadm.conf** or the feature will not be used (you also need a
+ reasonably new kernel).
+
+- **--stop** can be given a kernel name instead of a device name. i.e. **mdadm --stop md4** will
+ work even if /dev/md4 doesn't exist.
+
+- **--detail --export** has some information about the devices in the array.
+- **--dump** and **--restore** can be used to backup and restore the metadata on an array.
+- Hot-replace is supported with **mdadm /dev/mdX --replace /dev/foo** and
+ **mdadm /dev/mdX --replace /dev/foo --with /dev/bar**.
+
+- Config file can be a directory in which case all "*.conf" files are read in lexical order.
+ Default is to read **/etc/mdadm.conf** and then **/etc/mdadm.conf.d**. Thus
+ **echo CREATE name=yes > /etc/mdadm.conf.d/names.conf** will also enable the use of named md
+ devices.
+
+- Lots of improvements to **DDF** support including adding support for RAID10 (thanks Martin Wilck).
+
+# Release [mdadm-3.2.6](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.2.6)
+
+- There are no real stand-out fixes, just lots of little bits and pieces.
+
+# Release [mdadm-3.2.5](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.2.5)
+
+- This release primarily fixes a serious regression in 3.2.4. This regression does *not* cause
+ any risk to data. It simply means that adding a device with **--add** would sometime fail
+ when it should not.
+- The fix also includes a couple of minor fixes such as making the **--layout=preserve** option to
+ **--grow** work again.
+
+# Release [mdadm-3.2.4](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.2.4)
+
+ - **--offroot** argument to improve interactions between mdmon and initrd.
+ - **--prefer** argument to select which */dev* names to display in some circumstances.
+ - relax restrictions on when **--add** will be allowed.
+ - Fix bug with adding write-intent-bitmap to active array.
+ - Now defaults to */run/mdadm* for storing run-time files.
+
+# Release [mdadm-3.2.3](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.2.3)
+
+- The largest single area of change is support for reshape of Intel IMSM arrays (OnLine Capacity
+ Expansion and Level Migration).
+- Among other fixes, this now has a better chance of surviving if a device fails during reshape.
+
+# Release [mdadm-3.2.2](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.2.2)
+
+- reshaping IMSM (Intel metadata) arrays is no longer 'experimental', it should work properly and be
+ largely compatible with IMSM drivers in other platforms.
+- **--assume-clean** can be used with **--grow --size** to avoid resyncing the new part of the
+ array. This is only support with very new kernels.
+- RAID0 arrays can have chunksize which is not a power of 2. This has been supported in the kernel
+ for a while but is only now supported by mdadm.
+
+- A new tool **raid6check** is available, which can check a RAID6 array, or part of it and report
+ which device is most inconsistent with the others if any stripe is inconsistent. This is still
+ under development and does not have a man page yet. If anyone tries it out and has any questions
+ or experience to report, they would be most welcome on linux-raid@vger.kernel.org.
+
+# Release [mdadm-3.2.1](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.2.1)
+
+- Policy framework
+
+ Policy can be expressed for moving spare devices between arrays, and for how to handle hot-plugged
+ devices. This policy can be different for devices plugged in to different controllers etc. This,
+ for example, allows a configuration where when a device is plugged in it is immediately included
+ in an md array as a hot spare and possibly starts recovery immediately if an array is degraded.
+
+- Some understanding of mbr and gpt paritition tables. This is primarily to support the new
+ hot-plug support. If a device is plugged in and policy suggests it should have a partition table,
+ the partition table will be copied from a suitably similar device, and then the partitions will
+ hot-plug and can then be added to md arrays.
+
+- **--incremental --remove** can remember where a device was removed from so if a device gets
+ plugged back in the same place, special policy applies to it, allowing it to be included in an
+ array even if a general hotplug will not be included.
+
+- Enhanced reshape options, including growing a RAID0 by converting to RAID4, restriping, and
+ converting back. Also convertions between RAID0 and RAID10 and between RAID1 and RAID10 are
+ possible (with a suitably recent kernel).
+
+- Spare migration for IMSM arrays. Spare migration can now work across 'containers' using
+ non-native metadata and specifically Intel's IMSM arrays support spare migrations.
+
+- OLCE and level migration for Intel IMSM arrays. OnLine Capacity Expansion and level migration
+ (e.g. RAID0 -> RAID5) is supported for Intel Matrix Storage Manager arrays. This support is
+ currently *experimental* for technical reasons. It can be enabled with
+ **export MDADM_EXPERIMENTAL=1**.
+
+- avoid including wayward devices.
+
+ If you split a RAID1, mount the two halves as two separate degraded RAID1s, and then later bring
+ the two back together, it is possible that the md metadata won't properly show that one must
+ over-ride the other. Mdadm now does extra checking to detect this possibility and avoid
+ potentially corrupting data.
+
+- Remove any possible confusion between similar options. e.g. **--brief** and **--bitmap** were
+ mapped to 'b' and mdadm wouldn't notice if one was used where the other was expected.
+
+- Allow K,M,G suffixes on chunk sizes.
+
+# Release [mdadm-3.2](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.2)
+
+- By far the most significant change in this release related to the management of reshaping arrays.
+ This code has been substantially re-written so that it can work with **externally managed
+ metadata** -Intel's IMSM in particular. We now support level migration and OnLine Capacity
+ Expansion on these arrays.
+
+- Various policy statements can be made in the *mdadm.conf* to guide the behavior of mdadm,
+ particular with regards to how new devices are treated by **--incremental**. Depending on the
+ *action* associated with a device (identified by its *path*) such need devices can be
+ automatically re-added to and existing array that they previously fell out off, or automatically
+ added as a spare if they appear to contain no data.
+
+- mdadm now has a limited understanding of partition tables. This allows the policy framework to
+ make decisions about partitioned devices as well.
+
+- **--incremental --remove** can be told what **--path** the device was on, and this info will be
+ recorded so that another device appearing at the same physical location can be preferentially
+ added to the same array (provides the spare-same-slot action policy applied to the path).
+
+- A new flags **--invalid-backup** flag is available in **--assemble** mode. This can be used to
+ re-assemble an array which was stopping in the middle of a reshape, and for which the
+ *backup file* is no longer available or is corrupted. The array may have some corruption in it
+ at the point where reshape was up to, but at least the rest of the array will become available.
+
+- Policy framework.
+- Various internal restructuring - more is needed.
+
+# Release [mdadm-3.1.5](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.1.5)
+
+- Fixes for **v1.x** metadata on big-endian machines.
+- man page improvements.
+- Improve **--detail --export** when run on partitions of an md array.
+- Fix regression with removing *failed* or *detached* devices.
+- Fixes for **--assemble --force** in various unusual cases.
+- Allow **-Y** to mean **--export**. This was documented but not implemented.
+- Various fixes for handling **ddf** metadata. This is now more reliable but could benefit from
+ more interoperability testing.
+- Correctly list subarrays of a container in **--detail** output.
+- Improve checks on whether the requested number of devices is supported by the metadata, both for
+ **--create** and **--grow**.
+- Don't remove partitions from a device that is being included in an array until we are fully
+ committed to including it.
+- Allow **--assemble --update=no-bitmap** so an array with a corrupt bitmap can still be assembled.
+- Don't allow **--add** to succeed if it looks like a **--re-add** is probably wanted, but cannot
+ succeed. This avoids inadvertently turning devices into spares when an array is failed.
+
+# Release [mdadm-3.1.4](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.1.4)
+
+Two fixes related to configs that aren't using udev:
+- Don't remove md devices which 'standard' names on **--stop**.
+- Allow dev_open to work on read-only */dev*.
+
+And fixed regressions:
+- Allow **--incremental** to add spares to an array.
+- Accept **--no-degraded** as a deprecated option rather than throwing an error.
+- Return correct success status when **--incremental** assembling a container which does not yet
+ have enough devices.
+- Don't link mdadm with pthreads, only mdmon needs it.
+- Fix compiler warning due to bad use of snprintf.
+
+# Release [mdadm-3.1.3](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.1.3)
+
+- mapfile now lives in a fixed location which default to */dev/.mdadm/map*, but can be changed at
+ compile time. This location is chosen and most distros provide it during early boot and preserve
+ it through. As long a */dev* exists and is writable, */dev/.mdadm* will be created. Other files
+ communication with mdmon live here too. This fixes a bug reported by Debian and Gentoo users where
+ udev would spin in early-boot.
+
+- IMSM and DDF metadata will not be recognized on partitions as they should only be used on
+ whole-disks.
+
+- Various overflows causes by 2G drives have been addressed.
+
+- A subarray of an IMSM contain can now be killed with **--kill-subarray**. Also, subarrays can be
+ renamed with **--update-subarray --update=name**.
+
+- **-If** (or **--incremental --fail**) can be used from udev to fail and remove from all arrays
+ a device which has been unplugged from the system i.e. hot-unplug-support.
+
+- **/dev/mdX --re-add missing** will look for any device that looks like it should be a member of
+ */dev/mdX* but isn't and will automatically **--re-add** it.
+
+- Now compile with *-Wextra* to get extra warnings.
+- Lots of minor bug fixes, documentation improvements, etc.
+
+# Release [mdadm-3.1.2](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.1.2)
+
+- The default metadata has change again (sorry about that). It is now **v1.2** and will hopefully
+ stay that way. It turned out there with boot-block issues with **v1.1** which make it unsuitable
+ for a default, though in many cases it is still suitable to use.
+
+- Add *homehost* to the valid words for the **AUTO** config file line. When followed by *-all*,
+ this causes mdadm to auto-assemble any array belonging to this host, but not auto-assemble
+ anything else.
+
+- VAR_RUN can be easily changed at compile time just like ALT_RUN. This gives distros more
+ flexibility in how to manage the pid and sock files that mdmon needs.
+
+- If mdadm.conf lists arrays which have inter-dependencies, the previously had to be listed in the
+ "right" order. Now, any order should work.
+
+- Fix some bugs with **--grow --chunksize=**.
+- Stopping a container is not permitted when members are still active.
+- Various mdmon fixes.
+- Alway make bitmap 4K-aligned if at all possible.
+- Fix **--force** assembly of **v1.x** arrays which are in the process of recovering.
+- Add section on 'scrubbing' to 'md' man page.
+- Various command-line-option parsing improvements.
+- ... and lots of other bug fixes.
+
+# Release [mdadm-3.1.1](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.1.1)
+
+- Multiple fixes for new **--grow** levels including fixes for serious data corruption
+ problems.
+- Change default metadata to **v1.1**.
+- Change default chunk size to 512K.
+- Change default bitmap chunk size to 64MB.
+- When **--re-add** is used, don't fall back to **--add** as this can destroy data.
+
+# Release [mdadm-3.1](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.1)
+
+- Support **--grow** to change the layout of RAID 4/5/6.
+- Support **--grow** to change the chunk size of RAID 4/5/6.
+- Support **--grow** to change level from RAID1 -> RAID5 -> RAID6 and back.
+- Support **--grow** to reduce the number of devices in RAID 4/5/6.
+- Support restart of these grow options which assembling an array which is partially grown.
+- Assorted tests of this code, and of different RAID6 layouts.
+
+# Release [mdadm-3.0.3](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.0.3)
+
+- Improvements for creating arrays giving just a name, like *foo*, rather than the full
+ */dev/md/foo*.
+- Improvements for assembling member arrays of containers.
+- Improvements to test suite.
+- Add option to change increment for *RebuildNN* messages reported by **--monitor**.
+- Improvements to **mdmon** hand-over from initrd to final root.
+- Handle merging of devices that have left an IMSM array and are being re-incorporated.
+- Add missing space in **--detail --brief** output.
+
+# Release [mdadm-3.0.2](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.0.2)
+
+- Fix crash when **homehost** is not set, as often happens in early boot.
+
+# Release [mdadm-3.0.1](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.0.1)
+
+- Fix various segfaults.
+- Fixed for **--examine** with containers.
+- Lots of other little fixes.
+
+# Release [mdadm-3.0](https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/log/?h=mdadm-3.0)
+
+- Support for **externally managed metadata**, specifically DDF and IMSM.
+- Depend on udev to create entries in */dev*, rather than creating them ourselves.
+- Remove **--auto-update-home-hosts**.
+- New config file line **auto**.
+- New *ignore* and *any* options for **homehost**.
+- Numerous bug fixes and minor enhancements.
diff --git a/ChangeLog b/ChangeLog
deleted file mode 100644
index a3bf7007..00000000
--- a/ChangeLog
+++ /dev/null
@@ -1,306 +0,0 @@
-Please see git logs for detailed change log.
-This file just contains highlight.
-
-Changes Prior to release 3.3
-- Some array reshapes can proceed without needing backup file.
- This is done by changing the 'data_offset' so we never need to write
- any data back over where it was before. If there is no "head space"
- or "tail space" to allow data_offset to change, the old mechanism
- with a backup file can still be used.
-- RAID10 arrays can be reshaped to change the number of devices,
- change the chunk size, or change the layout between 'near'
- and 'offset'.
- This will always change data_offset, and will fail if there is no
- room for data_offset to be moved.
-- "--assemble --update=metadata" can convert a 0.90 array to a 1.0 array.
-- bad-block-logs are supported (but not heavily tested yet)
-- "--assemble --update=revert-reshape" can be used to undo a reshape
- that has just been started but isn't really wanted. This is very
- new and while it passes basic tests it cannot be guaranteed.
-- improved locking between --incremental and --assemble
-- uses systemd to run "mdmon" if systemd is configured to do that.
-- kernel names of md devices can be non-numeric. e.g. "md_home" rather than
- "md0". This will probably confuse lots of other tools, so you need to
- echo CREATE names=yes >> /etc/mdadm.conf
- or the feature will not be used. (you also need a reasonably new kernel).
-- "--stop" can be given a kernel name instead of a device name. i.e
- mdadm --stop md4
- will work even if /dev/md4 doesn't exist.
-- "--detail --export" has some information about the devices in the array
-- --dump and --restore can be used to backup and restore the metadata on an
- array.
-- Hot-replace is supported with
- mdadm /dev/mdX --replace /dev/foo
- and
- mdadm /dev/mdX --replace /dev/foo --with /dev/bar
-- Config file can be a directory in which case all "*.conf" files are
- read in lexical order.
- Default is to read /etc/mdadm.conf and then /etc/mdadm.conf.d
- Thus
- echo CREATE name=yes > /etc/mdadm.conf.d/names.conf
- will also enable the use of named md devices.
-
-- Lots of improvements to DDF support including adding support for
- RAID10 (thanks Martin Wilck).
-
-Changes Prior to release 3.2.6
- - There are no real stand-out fixes, just lots of little bits and pieces.
-
-Changes Prior to release 3.2.5
- - This release primarily fixes a serious regression in 3.2.4.
- This regression does *not* cause any risk to data. It simply
- means that adding a device with "--add" would sometime fail
- when it should not.
-
- - The fix also includes a couple of minor fixes such as making
- the "--layout=preserve" option to "--grow" work again.
-
-
-Changes Prior to release 3.2.4
-"--oneline" log of changes is below. Some notable ones are:
-
- - --offroot argument to improve interactions between mdmon and initrd
- - --prefer argument to select which /dev names to display in some
- circumstances.
- - relax restructions on when "--add" will be allowed
- - Fix bug with adding write-intent-bitmap to active array
- - Now defaults to "/run/mdadm" for storing run-time files.
-
-Changes Prior to release 3.2.3
- - The largest single area of change is support for reshape of Intel
- IMSM arrays (OnLine Capacity Explansion and Level Migration).
- - Among other fixes, this now has a better chance of surviving if a
- device fails during reshape.
-
-Changes Prior to release 3.2.2
- - reshaping IMSM (Intel metadata) arrays is no longer 'experimental',
- it should work properly and be largely compatible with IMSM drivers in
- other platforms.
- - --assume-clean can be used with --grow --size to avoid resyncing the
- new part of the array. This is only support with very new kernels.
- - RAID0 arrays can have chunksize which is not a power of 2. This has been
- supported in the kernel for a while but is only now supprted by
- mdadm.
-
- - A new tool 'raid6check' is available which can check a RAID6 array,
- or part of it, and report which device is most inconsistent with the
- others if any stripe is inconsistent. This is still under development
- and does not have a man page yet. If anyone tries it out and has any
- questions or experience to report, they would be most welcome on
- linux-raid@vger.kernel.org.
-
-Changes Prior to release 3.2.1
- - policy framework
- Policy can be expressed for moving spare devices between arrays, and
- for how to handle hot-plugged devices. This policy can be different
- for devices plugged in to different controllers etc.
- This, for example, allows a configuration where when a device is plugged
- in it is immediately included in an md array as a hot spare and
- possibly starts recovery immediately if an array is degraded.
-
- - some understanding of mbr and gpt paritition tables
- This is primarly to support the new hot-plug support. If a
- device is plugged in and policy suggests it should have a partition table,
- the partition table will be copied from a suitably similar device, and
- then the partitions will hot-plug and can then be added to md arrays.
-
- - "--incremental --remove" can remember where a device was removed from
- so if a device gets plugged back in the same place, special policy applies
- to it, allowing it to be included in an array even if a general hotplug
- will not be included.
-
- - enhanced reshape options, including growing a RAID0 by converting to RAID4,
- restriping, and converting back. Also convertions between RAID0 and
- RAID10 and between RAID1 and RAID10 are possible (with a suitably recent
- kernel).
-
- - spare migration for IMSM arrays.
- Spare migration can now work across 'containers' using non-native metadata
- and specifically Intel's IMSM arrays support spare migrations.
-
- - OLCE and level migration for Intel IMSM arrays.
- OnLine Capacity Expansion and level migration (e.g. RAID0 -> RAID5) is
- supported for Intel Matrix Storage Manager arrays.
- This support is currently 'experimental' for technical reasons. It can
- be enabled with "export MDADM_EXPERIMENTAL=1"
-
- - avoid including wayward devices
- If you split a RAID1, mount the two halves as two separate degraded RAID1s,
- and then later bring the two back together, it is possible that the md
- metadata won't properly show that one must over-ride the other.
- mdadm now does extra checking to detect this possibilty and avoid
- potentially corrupting data.
-
- - remove any possible confusion between similar options.
- e.g. --brief and --bitmap were mapped to 'b' and mdadm wouldn't
- notice if one was used where the other was expected.
-
- - allow K,M,G suffixes on chunk sizes
-
-Changes Prior to release 3.2
- - By far the most significant change in this release related to the
- management of reshaping arrays. This code has been substantially
- re-written so that it can work with 'externally managed metadata' -
- Intel's IMSM in particular. We now support level migration and
- OnLine Capacity Expansion on these arrays.
- - Policy framework.
- Various policy statements can be made in the mdadm.conf to guide
- the behaviour of mdadm, particular with regards to how new devices
- are treated by "mdadm -I".
- Depending on the 'action' associated with a device (identified by
- its 'path') such need devices can be automatically re-added to and
- existing array that they previously fell out off, or automatically
- added as a spare if they appear to contain no data.
-
- - mdadm now has a limited understanding of partition tables. This
- allows the policy framework to make decisions about partitioned
- devices as well.
-
- - --incremental --remove can be told what --path the device was on,
- and this info will be recorded so that another device appearing at
- the same physical location can be preferentially added to the same
- array (provides the spare-same-slot action policy applied to the
- path).
-
- - A new flags "--invalid-backup" flag is available in --assemble
- mode. This can be used to re-assemble an array which was stopping
- in the middle of a reshape, and for which the 'backup file' is no
- longer available or is corrupted. The array may have some
- corruption in it at the point where reshape was up to, but at least
- the rest of the array will become available.
-
-
- - Various internal restructuring - more is needed.
-
-Changes Prior to release 3.1.5
- - Fixes for v1.x metadata on big-endian machines.
- - man page improvements
- - Improve '--detail --export' when run on partitions of an md array.
- - Fix regression with removing 'failed' or 'detached' devices.
- - Fixes for "--assemble --force" in various unusual cases.
- - Allow '-Y' to mean --export. This was documented but not implemented.
- - Various fixed for handling 'ddf' metadata. This is now more reliable
- but could benefit from more interoperability testing.
- - Correctly list subarrays of a container in "--detail" output.
- - Improve checks on whether the requested number of devices is supported
- by the metadata - both for --create and --grow.
- - Don't remove partitions from a device that is being included in an
- array until we are fully committed to including it.
- - Allow "--assemble --update=no-bitmap" so an array with a corrupt
- bitmap can still be assembled.
- - Don't allow --add to succeed if it looks like a "--re-add" is probably
- wanted, but cannot succeed. This avoids inadvertently turning
- devices into spares when an array is failed.
-
-Changes Prior to release 3.1.4
- Two fixes related to configs that aren't using udev:
- - Don't remove md devices which 'standard' names on --stop
- - Allow dev_open to work on read-only /dev
- And fixed regressions:
- - Allow --incremental to add spares to an array
- - Accept --no-degraded as a deprecated option rather than
- throwing an error
- - Return correct success status when --incrmental assembling
- a container which does not yet have enough devices.
- - Don't link mdadm with pthreads, only mdmon needs it.
- - Fix compiler warning due to bad use of snprintf
-
-Changes Prior to release 3.1.3
- - mapfile now lives in a fixed location which default to
- /dev/.mdadm/map but can be changed at compile time. This
- location is choses and most distros provide it during early
- boot and preserve it through. As long a /dev exists and is
- writable, /dev/.mdadm will be created.
- Other files file communication with mdmon live here too.
- This fixes a bug reported by Debian and Gentoo users where
- udev would spin in early-boot.
- - IMSM and DDF metadata will not be recognised on partitions
- as they should only be used on whole-disks.
- - Various overflows causes by 2G drives have been addressed.
- - A subarray of an IMSM contain can now be killed with
- --kill-subarray. Also subarrays can be renamed with
- --update-subarray
- - -If (or --incremental --fail) can be used from udev to
- fail and remove from all arrays a device which has been
- unplugged from the system. i.e. hot-unplug-support.
- - "mdadm /dev/mdX --re-add missing" will look for any device
- that looks like it should be a member of /dev/mdX but isn't
- and will automatically --re-add it
- - Now compile with -Wextra to get extra warnings.
- - Lots of minor bug fixes, documentation improvements, etcc
-
-Changes Prior to release 3.1.2
- - The default metadata has change again (sorry about that).
- It is now v1.2 and will hopefully stay that way. It turned
- out there with boot-block issues with v1.1 which make it
- unsuitable for a default, though in many cases it is still
- suitable to use.
- - Stopping a container is not permitted when members are still
- active
- - Add 'homehost' to the valid words for the "AUTO" config file
- line. When followed by "-all", this causes mdadm to
- auto-assemble any array belonging to this host, but not
- auto-assemble anything else.
- - Fix some bugs with "--grow --chunksize=" for changing chunksize.
- - VAR_RUN can be easily changed at compile time just like ALT_RUN.
- This gives distros more flexability in how to manage the
- pid and sock files that mdmon needs.
- - Various mdmon fixes
- - Alway make bitmap 4K-aligned if at all possible.
- - If mdadm.conf lists arrays which have inter-dependencies,
- the previously had to be listed in the "right" order. Now
- any order should work.
- - Fix --force assembly of v1.x arrays which are in the process
- of recovering.
- - Add section on 'scrubbing' to 'md' man page.
- - Various command-line-option parsing improvements.
- - ... and lots of other bug fixes.
-
-Changes Prior to release 3.1.1
- - Multiple fixes for new --grow levels including fixes for
- serious data corruption problems.
- - Change default metadata to v1.1
- - Change default chunk size to 512K
- - Change default bitmap chunk size to 64Meg
- - When --re-add is used, don't fall back to
- --add if --re-add fails as this can destroy data.
-
-Changes Prior to release 3.1
- - Support --grow to change the layout of RAID4/5/6
- - Support --grow to change the chunksize of raid 4/5/6
- - Support --grow to change level from RAID1 -> RAID5 -> RAID6 and
- back.
- - Support --grow to reduce the number of devices in RAID4/5/6.
- - Support restart of these grow options which assembling an array
- which is partially grown.
- - Assorted tests of this code, and of different RAID6 layouts.
-
-Changes Prior to release 3.0.3
- - Improvements for creating arrays giving just a name, like 'foo',
- rather than the full '/dev/md/foo'.
- - Improvements for assembling member arrays of containers.
- - Improvements to test suite
- - Add option to change increment for RebuildNN messages reported
- by "mdadm --monitor"
- - Improvements to mdmon 'hand-over' from initrd to final root.
- - Handle merging of devices that have left an IMSM array and are
- being re-incorporated.
- - Add missing space in "--detail --brief" output.
-
-Changes Prior to release 3.0.2
- - Fix crash when hosthost is not set, as often happens in
- early boot.
-
-Changes Prior to release 3.0.1
- - Fix various segfaults
- - Fixed for --examine with containers
- - Lots of other little fixes.
-
-Changes Prior to release 3.0
- - Support for externally managed metadata, specifically DDF and IMSM.
- - Depend on udev to create entries in /dev, rather than creating them
- ourselves.
- - remove --auto-update-home-hosts
- - new config file line "auto"
- - new "<ignore>" and "any" options for "homehost"
- - numerous bug fixes and minor enhancements.
--
2.41.0
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