device-mapper-multipath/0006-multipath-tools-make-IBM-2107900-DS8000-config-work-.patch
Benjamin Marzinski 19ddc43848 device-mapper-multipath-0.8.7-1
Update Source to upstream version 0.8.7 plus upstream staged commits
  * Previous patches 0011-0016 & 0018-0022 are included in the source
    tarball
  * Fixes bz#2017592
Rename files
  * Previous patches 0001-0010 are now patches 0013-0022
Modify 0018-RH-add-mpathconf.patch
  * merged with previous patch 0017
Add 0023-libmulitpath-add-section-name-to-invalid-keyword-out.patch
  * Fixes bz#1984303
Fix multipath_conf_syntax test to work with bz #1984303
Resolves: bz #1984303, #2017592
2021-10-29 15:25:05 -05:00

41 lines
1.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Tue, 28 Sep 2021 18:52:10 +0200
Subject: [PATCH] multipath-tools: make IBM/2107900 (DS8000) config work with
alua and multibus
ALUA is supported since the beginning:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/scsi/device_handler/scsi_dh_alua.c?id=057ea7c9683c3d684128cced796f03c179ecf1c2#n683
... the DS8000 is an Asymmetric Logical Unit Access (ALUA) capable storage array,
pag#160(144): https://www.redbooks.ibm.com/redbooks/pdfs/sg248887.pdf
kernel log:
https://marc.info/?l=linux-scsi&m=156407413807511&q=mbox
Cc: Martin Wilck <mwilck@suse.com>
Cc: Benjamin Marzinski <bmarzins@redhat.com>
Cc: Christophe Varoqui <christophe.varoqui@opensvc.com>
Cc: DM-DEVEL ML <dm-devel@redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index 72f81c60..f115c4f9 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -656,7 +656,8 @@ static struct hwentry default_hw[] = {
.vendor = "IBM",
.product = "^2107900",
.no_path_retry = NO_PATH_RETRY_QUEUE,
- .pgpolicy = MULTIBUS,
+ .pgpolicy = GROUP_BY_PRIO,
+ .pgfailback = -FAILBACK_IMMEDIATE,
},
{
// Storwize V5000 and V7000 lines / SAN Volume Controller (SVC) / Flex System V7000 /