instance hard reboot error when multipath has failed path

[xuanyandong]

When multipath has failed path like this:

360050767088076c00000000003417 dm-46 INSPUR ,MCS
  size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw
  |-+- policy='round-robin 0' prio=0 status=active
  | |- 6:0:4:27 sdho 133:224 failed faulty running
  | `- 15:0:5:28 sdhk 133:160 active ready running
  `-+- policy='round-robin 0' prio=0 status=ennabled
    |- 6:0:0:27 sdhn 133:208 failed faulty running
    |- 15:0:0:28 sdhp 133:144 active ready running

then we reboot the instance, the instance will be error

because when hard reboot the instance, the disconnect_volume flow will get the paths wwn, when loop the failed path,
get wwn command will be failed and raise exception, this will cause the instance failed.

[Sofia Enriquez (lsofia-enriquez)]

Fixed proposed https://review.opendev.org/c/openstack/os-brick/+/780511

[Gorka Eguileor (gorka)]

This is caused by the FC driver usage of /lib/udev/scsi_id instead of relying on sysfs to get the wwn like the iSCSI driver does.

[Sven Kieske (s-kieske)]

it seems this bug never got fixed? Was there maybe a different Fix proposed which didn't link to this bug report?

We have a related bugreport in our deployment project, which looks a lot like this bug:

https://bugs.launchpad.net/kolla-ansible/+bug/2049574

Thanks for any update on this topic.