Message "[RAIDarray.mpp]PATStorageDS5020 Failed controller" appears in logs

Solution Verified - Updated -

Issue

  • Logs display any of following messages:
[RAIDarray.mpp]PAT_Storage_DS5020:0:0:2 Failed controller to 1. retry. vcmnd SN 97148 pdev H2:C0:T1:L2 0x00/0x00/0x00 0x06080000 mpp_status:8

[RAIDarray.mpp]PAT_Storage_DS5020:0:0:0 Controller IO time expired. Delta 400 sec

[RAIDarray.mpp]PAT_Storage_DS5020:1 Failover command issued

[RAIDarray.mpp]Failover succeeded to PAT_Storage_DS5020

mpp 2:0:1:2: timing out command, waited 400s

Environment

  • Red Hat Enterprise Linux 5, 6, or 7
  • Multipath or RAID using IBM RDAC driver

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