38 lines
1.4 KiB
Diff
38 lines
1.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
|
|
Date: Tue, 28 Sep 2021 19:31:21 +0200
|
|
Subject: [PATCH] multipath-tools: make EMC/Invista config work with alua and
|
|
multibus
|
|
|
|
Optimal Path Management (OPM) was introduced with VPLEX 5.5 to improve VPLEX
|
|
performance. OPM uses the ALUA mechanism to spread the I/O load across VPLEX directors
|
|
while gaining cache locality, pag #187:
|
|
https://www.delltechnologies.com/en-us/collaterals/unauth/technical-guides-support-information/products/storage-2/docu5128.pdf
|
|
|
|
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 7095aaf1..4e8b52ff 100644
|
|
--- a/libmultipath/hwtable.c
|
|
+++ b/libmultipath/hwtable.c
|
|
@@ -350,8 +350,9 @@ static struct hwentry default_hw[] = {
|
|
.vendor = "EMC",
|
|
.product = "Invista",
|
|
.bl_product = "LUNZ",
|
|
- .pgpolicy = MULTIBUS,
|
|
+ .pgpolicy = GROUP_BY_PRIO,
|
|
.no_path_retry = 5,
|
|
+ .pgfailback = -FAILBACK_IMMEDIATE,
|
|
},
|
|
{
|
|
/* XtremIO */
|