device-mapper-multipath-0.8.4-28.el8 breaking multipathing with Dell Unity LUNs

Solution Unverified - Updated -

Issue

  • After updating to RHEL8.7 all multipath paths are reporting as failed.
  • When using device-mapper-multipath-0.8.4-28.el8 or higher versions, multipath -ll is showing all paths as faulty.
mpatha (3600aaaaaaaaaaaaaaaaaaaaaaaaaaaaa) dm-9 DGC,VRAID
size=25G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw
|-+- policy='service-time 0' prio=0 status=active
| |- 1:0:0:3 sdd 8:48  failed faulty running
| |- 1:0:2:3 sdh 8:112 failed faulty running
| |- 2:0:0:3 sdl 8:176 failed faulty running
| `- 2:0:2:3 sdp 8:240 failed faulty running
`-+- policy='service-time 0' prio=0 status=enabled
  |- 1:0:1:3 sdf 8:80  failed faulty running
  |- 1:0:3:3 sdj 8:144 failed faulty running
  |- 2:0:1:3 sdn 8:208 failed faulty running
  `- 2:0:3:3 sdr 65:16 failed faulty running
  • Downgrading to device-mapper-multipath-0.8.4-22.el8 fixes the issue.
mpatha (3600aaaaaaaaaaaaaaaaaaaaaaaaaaaaa) dm-9 DGC,VRAID
size=25G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 1:0:0:3 sdd 8:48  active ready running
| |- 1:0:2:3 sdh 8:112 active ready running
| |- 2:0:0:3 sdl 8:176 active ready running
| `- 2:0:2:3 sdp 8:240 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 1:0:1:3 sdf 8:80  active ready running
  |- 1:0:3:3 sdj 8:144 active ready running
  |- 2:0:1:3 sdn 8:208 active ready running
  `- 2:0:3:3 sdr 65:16 active ready running
  • Getting following error after updating system to RHEL8.7
Feb  6 21:23:39 test_host multipathd[502843]: mpathb: sdi - emc_clariion checker: Path not correctly configured for failover
Feb  6 21:23:39 test_host multipathd[502843]: mpatha: sdj - emc_clariion checker: Path not correctly configured for failover
Feb  6 21:23:39 test_host multipathd[502843]: mpatha: sdp - emc_clariion checker: Path not correctly configured for failover

Environment

  • Red Hat Enterprise Linux 8.7
    • device-mapper-multipath-0.8.4-22.el8 or higher.

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