Hi Jeff,
On Wed, 21 Aug 2019 at 17:34, Jeff Johnson
<[email protected]> 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>
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