SCSI error: return code = 0x00020000 qla2xxx driver on Red Hat Enterprise Linux 5.3

Solution Verified - Updated -

Issue

  • /var/log/messages reports errors similar to

    kernel: sd 2:0:0:66: SCSI error: return code = 0x00020000
kernel: end_request: I/O error, dev sdbp, sector 529
kernel: device-mapper: multipath: Failing path 68:48

Environment

  • Red Hat Enterprise Linux 5.3 and earlier
  • QLogic HBA with qla2xxx driver provided by Red Hat Enterprise Linux kernel.
  • device-mapper-multipath

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