After patching to rhel 7.9, multipath status failed

Solution Verified - Updated -

Issue

Jun 16 16:07:04 hostxyz multipathd: LUNXYZ: sdl - readsector0 checker reports path is down
Jun 16 16:08:07 hostxyz multipathd: LUNXYZ: sdm - readsector0 checker reports path is down
Jun 16 16:09:39 hostxyz multipathd: LUNXYZ: sdag - readsector0 checker reports path is down

Also path status may shows fails

LUNXYZ (364817xyzabczx2356flk3w45872qw34f) dm-3 EQLOGIC ,100E-00
size=10T features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=0 status=enabled
  |- 26:0:0:0  sdm  8:192  failed undef running
  `- 27:0:0:0  sdda 70:128 failed undef running

Another symptom would be any multipath command may hang or take long time to return command output and the prompt. Which might associate with warning that multipath daemon is not running even though the status of the multipathd shows active and loaded/running

Jul 08 08:43:34 | multipath device maps are present, but 'multipathd' service is not running
Jul 08 08:43:34 | IO failover/failback will not work without 'multipathd' service running
systemctl status multipathd
● multipathd.service - Device-Mapper Multipath Device Controller
   Loaded: loaded (/usr/lib/systemd/system/multipathd.service; enabled; vendor preset: enabled)
   Active: active (running) (Result: exit-code) since Thu 2022-07-07 11:04:50 EDT; 21h ago
  Process: 15909 ExecReload=/sbin/multipathd reconfigure (code=exited, status=1/FAILURE)
  Process: 938 ExecStart=/sbin/multipathd (code=exited, status=0/SUCCESS)
  Process: 929 ExecStartPre=/sbin/multipath -A (code=exited, status=0/SUCCESS)
  Process: 922 ExecStartPre=/sbin/modprobe dm-multipath (code=exited, status=0/SUCCESS)
 Main PID: 940 (multipathd)
   CGroup: /system.slice/multipathd.service
           └─940 /sbin/multipathd

Environment

  • Red Hat Enterprise Linux
  • Dell Equallogic Storage Array

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