Hi Xose. OPM is no longer supported in the Dell VPLEX product. If we at Dell had wished to change the default device stanzas for any of our products they would have been done when the product and/or feature is released. Please remove this patch as well. It is not needed. Regards, Wayne. Wayne Berthiaume Manager, E-Lab Engineering Platform Qualification Team Dell EMC | Server & Infrastructure Systems | Platform and System Engineering | Infrastructure Engineering & Operations | e2e Validation Lab (E-LAB) 176 South Street Hopkinton, MA 01748 +1 (512) 647-6157 (office) wayne.berthiaume@xxxxxxxx "FOLLOW" E-Lab Engineering at https://inside.dell.com/community/active/po/platform-system-engineering/elab Confidentiality Notice: This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential or proprietary information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, immediately contact the sender by reply e-mail and destroy all copies of the original message. Internal Use - Confidential -----Original Message----- From: dm-devel-bounces@xxxxxxxxxx <dm-devel-bounces@xxxxxxxxxx> On Behalf Of Xose Vazquez Perez Sent: Tuesday, September 28, 2021 1:31 PM Cc: Xose Vazquez Perez; Martin Wilck; DM-DEVEL ML Subject: [PATCH] multipath-tools: make EMC/Invista config work with alua and multibus [EXTERNAL EMAIL] 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@xxxxxxxx> Cc: Benjamin Marzinski <bmarzins@xxxxxxxxxx> Cc: Christophe Varoqui <christophe.varoqui@xxxxxxxxxxx> Cc: DM-DEVEL ML <dm-devel@xxxxxxxxxx> Signed-off-by: Xose Vazquez Perez <xose.vazquez@xxxxxxxxx> --- 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 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://urldefense.com/v3/__https://listman.redhat.com/mailman/listinfo/dm-devel__;!!LpKI!3xx3cBf4_gTYjsFEdPLEd12Uz-4rxuFhn91YEI31Wyhqt-tu-rdX0PIivxsto8wZ0L8$ [listman[.]redhat[.]com] -- dm-devel mailing list dm-devel@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/dm-devel
