Hi Jeff, On Wed, 21 Aug 2019 at 17:34, Jeff Johnson <jeff.john...@aeoncomputing.com> wrote: > What underlying Lustre target filesystem? (assuming ldiskfs with a hardware > RAID array) correct - ldiskfs, using 8* raid6 luns per ME4084
> What does your current multipath.conf look like? we just had blacklist, WWNs and mappings, we were missing any ME4 specific device {} settings, however I've since found the magic incantation from https://downloads.dell.com/manuals/common/powervault-me4-series-linux-dell-emc-2018-3924-bp-l_wp_en-us.pdf, notably device { vendor "DellEMC" product "ME4" path_grouping_policy "group_by_prio" path_checker "tur" hardware_handler "1 alua" prio "alua" failback immediate rr_weight "uniform" path_selector "service-time 0" } and it seems to be working a whole lot better :-) <support request can be closed, thanks folks for your patience> _______________________________________________ lustre-discuss mailing list lustre-discuss@lists.lustre.org http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org