From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Xose Vazquez Perez 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 Cc: Benjamin Marzinski Cc: Christophe Varoqui Cc: DM-DEVEL ML Signed-off-by: Xose Vazquez Perez Reviewed-by: Martin Wilck Signed-off-by: Benjamin Marzinski --- 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 */