Path flapping on HPE MSA 2070 multipath devices

Solution In Progress - Updated -

Issue

Flapping multipath ON and OFF

var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: mpatha: remaining active paths: 2
var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: mpatha: remaining active paths: 2
var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: sdr: mark as failed
var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: sdr: mark as failed
var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: mpatha: remaining active paths: 1
var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: sdz: mark as failed
var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: sdz: mark as failed
var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: mpatha: remaining active paths: 0
var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: mpatha: sdz - tur checker reports path is up
var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: 65:144: reinstated
var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: 65:144: reinstated
var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: mpatha: remaining active paths: 1
var/log/messages-20250625:Jun 24 15:26:04 hostnameX multipathd[15894]: mpatha: remaining active paths: 1
var/log/messages-20250625:Jun 24 15:26:04 hostnameX kernel: device-mapper: multipath: 253:9: Reinstating path 65:144.
var/log/messages-20250625:Jun 24 15:26:04 hostnameX kernel: device-mapper: multipath: 253:9: Reinstating path 65:144.
var/log/messages-20250625:Jun 24 15:26:07 hostnameX multipathd[15894]: mpatha: sdb - tur checker reports path is up

Wrong multipath mapping for MSA 2070 array

 mpathX (3600xxxxyyyyzzzzz12345600) dm-2 HPE,MSA 2070 FC
  size=20T features='0' hwhandler='1 alua' wp=rw
  |-+- policy='service-time 0' prio=50 status=active
  | `- 1:0:1:8   sdi  8:128  active ready running
  |-+- policy='service-time 0' prio=50 status=enabled
  | `- 3:0:0:8   sdag 66:0   active ready running
  |-+- policy='service-time 0' prio=10 status=enabled
  | `- 1:0:0:8   sdq  65:0   active ready running
  `-+- policy='service-time 0' prio=10 status=enabled
    `- 3:0:1:8   sdy  65:128 active ready running

Environment

  • Red Hat Enterprise Linux
  • HPE MSA 2070 Storage array
  • device-mapper-multipath

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