From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Xose Vazquez Perez Date: Sat, 25 Sep 2021 00:27:36 +0200 Subject: [PATCH] multipath-tools: make IBM/XIV config work with alua and multibus And add recommended pgfailback value. ALUA is supported since XIV_Gen2 and microcode 10.2.1 (All ports across all controllers in single Target Port Group) https://www.ibm.com/support/pages/ibm-flashsystem%C2%AE-a9000-and-a9000r-hyperswap-solution-deployment-linux%C2%AE-ibm-z-systems%C2%AE https://www.google.com/search?q=%222810XIV%22+%22path_grouping_policy%22+site%3Aibm.com 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 0caac0da..72f81c60 100644 --- a/libmultipath/hwtable.c +++ b/libmultipath/hwtable.c @@ -712,7 +712,8 @@ static struct hwentry default_hw[] = { .vendor = "(XIV|IBM)", .product = "(NEXTRA|2810XIV)", .no_path_retry = NO_PATH_RETRY_QUEUE, - .pgpolicy = MULTIBUS, + .pgpolicy = GROUP_BY_PRIO, + .pgfailback = 15, }, { /* TMS RamSan / FlashSystem 710/720/810/820/840/900 */