Multipath config with ISCSI Storage DELL

[matiFRSF]

Hi, I am trying to configure multipath with a DELL SC5020 iscsi storage. I followed the official Proxmox guide but can't get it to work. I think the problem is in the configuration of the multipath.conf file.
I am using Proxmox 6.4
I've been testing various configurations of the multipath.conf file, currently it looks like this:

defaults {
user_friendly_names yes
find_multipaths no
path_selector "service-time 0"
}

devices {
device {
vendor "COMPELNT"
product "Compellent Vol"
path_grouping_policy multibus
path_checker tur
features "0"
hardware_handler "0"
prio const
failback immediate
rr_weight uniform
no_path_retry queue
}
}

blacklist {
wwid .*
}
blacklist_exceptions {
wwid "36000d31005a514000000000000000005"
}

multipaths {
multipath {
wwid "36000d31005a514000000000000000005"
alias lunPROXMOX
uid 0
gid 0
mode 0600
}
}

The result of multipath -ll command:
root@sensrvproxmox04:~# multipath -ll
lunPROXMOX (36000d31005a514000000000000000005) dm-5 COMPELNT,Compellent Vol
size=700G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw
`-+- policy='service-time 0' prio=50 status=enabled
|- 19:0:0:1 sdb 8:16 failed i/o pending running
`- 20:0:0:1 sdc 8:32 failed ready running

root@sensrvproxmox04:~# multipath -ll
lunPROXMOX (36000d31005a514000000000000000005) dm-5 COMPELNT,Compellent Vol
size=700G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw
`-+- policy='service-time 0' prio=25 status=active
|- 19:0:0:1 sdb 8:16 active ready running
`- 20:0:0:1 sdc 8:32 active ready running

root@sensrvproxmox04:~# multipath -ll
lunPROXMOX (36000d31005a514000000000000000005) dm-5 COMPELNT,Compellent Vol
size=700G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw
`-+- policy='service-time 0' prio=0 status=active
|- 19:0:0:1 sdb 8:16 active i/o pending running
`- 20:0:0:1 sdc 8:32 active i/o pending running

The result changes every time I run the command!

any suggestion?
Thanks!

 

[Stoiko Ivanov]

what's the output of `lsblk` - and what exactly is not working?
as far as i can see it should be ok - and the mulitpathed lun should be available as /dev/dm-5 (or with a nicer name somewhere in /dev/mapper)

I hope this helps!