What does the qdiskd "Error reading node ID block xx" message mean in RHEL?

Solution Unverified - Updated -

Issue

server is throwing following error messages out


Apr 3 16:53:20 rhel5-1 qdiskd[22945]: <warning> Error reading node ID block 15 Apr 3 16:53:20 rhel5-1 kernel: scsi 0:0:0:1: rejecting I/O to dead device Apr 3 16:53:20 rhel5-1 qdiskd[22945]: <warning> Error reading node ID block 16 Apr 3 16:53:20 rhel5-1 kernel: scsi 0:0:0:1: rejecting I/O to dead device Apr 3 16:53:20 rhel5-1 qdiskd[22945]: <err> Error writing to quorum disk Apr 3 16:53:20 rhel5-1 kernel: scsi 0:0:0:1: rejecting I/O to dead device Apr 3 16:53:20 rhel5-1 qdiskd[22945]: <alert> Too many I/O errors; giving up. Apr 3 16:53:20 rhel5-1 kernel: scsi 0:0:0:1: rejecting I/O to dead device Apr 3 16:53:20 rhel5-1 qdiskd[22945]: <warning> Error writing to quorum disk during logout Apr 3 16:53:20 rhel5-1 kernel: scsi 0:0:0:1: rejecting I/O to dead device Apr 3 16:53:20 rhel5-1 last message repeated 10 times Apr 3 16:53:30 rhel5-1 openais[1916]: [CMAN ] lost contact with quorum device

what does these messages mean ?

Environment

  • Red Hat Enterprise Linux (RHEL) 5 or 6 with the High Availability Add On
  • Cluster configured to use a quorum device (<quorumd> in /etc/cluster/cluster.conf)

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