device-mapper-multipath/0058-libmultipath-unset-detect_checker-for-clariion-Unity.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 10 May 2022 14:17:22 -0500
Subject: [PATCH] libmultipath: unset detect_checker for clariion / Unity
arrays
Dell EMC would like to always use the emc_clariion checker. Currently
detect_checker will switch the checker to TUR for Unity arrays.
This can cause problems on some setups with replicated Unity LUNs,
which are handled correctly the the emc_checker, but not the TUR
checker.
Cc: vincent.chen1@dell.com
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index d7c487b1..22ff1881 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -343,6 +343,7 @@ static struct hwentry default_hw[] = {
.no_path_retry = (300 / DEFAULT_CHECKINT),
.checker_name = EMC_CLARIION,
.prio_name = PRIO_EMC,
+ .detect_checker = DETECT_CHECKER_OFF,
},
{
/* Invista / VPLEX */