SCSI error "Device not ready: <6> Current: sense key: Not Ready"

Solution Verified - Updated -

Issue

  • /var/log/messages reports errors similar to;

    kernel: sd 0:0:1:0: Device not ready: <6>: Current: sense key: Not Ready
kernel:     Add. Sense: No additional sense information
kernel: 
kernel: end_request: I/O error, dev sdb, sector 641742759
kernel: sd 0:0:0:0: Device not ready: <6>: Current: sense key: Not Ready
kernel:     Add. Sense: No additional sense information

Environment

  • Red Hat Enterprise Linux Any Version
  • SAN storage

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