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 <mwi...@suse.com>
Cc: Benjamin Marzinski <bmarz...@redhat.com>
Cc: Christophe Varoqui <christophe.varo...@opensvc.com>
Cc: DM-DEVEL ML <dm-devel@redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazq...@gmail.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 */
--
2.32.0
--
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