XFS file system on SAN storage switches to read only mode

Solution Unverified - Updated -

Issue

  • XFS filesystem provided by external SAN intermittently goes into read-only mode.
  • Multiple XFS writeback error messages reported in /var/log/messages.
  • Sense Key : Hardware Error messages for block devices hosted on SAN storage reported in /var/log/messages.

Environment

  • Red Hat Enterprise Linux (RHEL) 7
  • Third party SAN connected storage

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