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Disks fail after ATTO bridge reboot

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metrocluster
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Applies to

  • Fabric MetroCluster
  • ONTAP 9
  • ATTO FB7500N & FB7600N models using both FC ports

Issue

  • After an ATTO bridge is rebooted, multiple disks are reported as missing and fail
Example:

Thu Sep 23 17:10:19 +0300 [fsrumogcsh0151: disk_server_1: disk.IO.status:debug]: params: {'deviceName': 'FC-Sw-A1:2.126L6', 'returnCode': '2', 'pathRetryCount': '0', 'adapterStatus': '0xd', 'cdb': 'XXXXX', 'basicTimeout': '9', 'iASCQ': '0x0', 'iSenseKey': '0x0', 'sSenseCode': '', 'ETime': '6866', 'iASC': '0x0', 'victimRetryCount': '14', 'sSenseKey': 'SCSI:no sense', 'targetStatus': '0x0', 'disk_information': 'Disk FC-Sw-A1:2.126L6 Shelf 0 Bay 5 [NETAPP   X371_S164A960ATE NA53] S/N [XXXXX] UID [00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000]', 'retryCount': '1', 'pathsTried': '0', 'timeoutRetryCount': '1'}
Thu Sep 23 17:10:19 +0300 [fsrumogcsh0151: config_thread: raid.config.filesystem.disk.missing:info]: File system Disk /aggr_data1/plex0/rg0/FC-Sw-A2:3.126L40 Shelf 0 Bay 13 [NETAPP   X371_S164A960ATE NA53] S/N [XXXXX] UID [00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000] is missing.
Thu Sep 23 17:10:19 +0300 [fsrumogcsh0151: config_thread: raid.config.filesystem.disk.missing:info]: File system Disk /aggr_data1/plex0/rg0/FC-Sw-A2:3.126L41 Shelf 0 Bay 14 [NETAPP   X371_S164A960ATE NA53] S/N [XXXXX] UID [00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000] is missing.

 

  • One or more plexes are reported as failed

Example:

Thu Sep 23 17:10:19 +0300 [fsrumogcsh0151: config_thread: raid.rg.degraded:notice]: : Raid group /aggr_data1/plex0/rg0 is degraded
Thu Sep 23 17:10:19 +0300 [fsrumogcsh0151: config_thread: raid.vol.mirror.degraded:alert]: Aggregate aggr_data1 is mirrored and one plex has failed. It is no longer protected by mirroring.
Thu Sep 23 17:10:19 +0300 [fsrumogcsh0151: config_thread: callhome.syncm.plex:alert]: Call home for SYNCMIRROR PLEX FAILED

  • The corresponding plex fails and the RAID group is degraded

Example:

Aggregate aggr_data1 (online, raid_dp, mirror degraded, fast zeroed) (block checksums)

  Plex /aggr_data1/plex0 (offline, failed, inactive, pool0)
    RAID group /aggr_data1/plex0/rg0 (partial, block checksums)

      RAID Disk    Device                        HA  SHELF BAY CHAN Pool Type  RPM  Used (MB/blks)    Phys (MB/blks)
      ---------    ------                        ------------- ---- ---- ---- ----- --------------    --------------
      dparity     FC-Sw-A1:2.126L1        1c    0   0   FC:A   0   SSD   N/A 915465/1874872832 915715/1875385008 
      parity      FC-Sw-A2:2.126L2        1b    0   1   FC:A   0   SSD   N/A 915465/1874872832 915715/1875385008 
      data        FAILED                            N/A                        915465/ -
      data        FAILED                            N/A                        915465/ -
      data        FAILED                            N/A                        915465/ -
      data        FAILED                            N/A                        915465/ -
      data        FC-Sw-A1:3.126L47       1c    0   20  FC:B   0   SSD   N/A 915465/1874872832 915715/1875385008 
      data        FC-Sw-A1:3.126L48       1a    0   21  FC:B   0   SSD   N/A 915465/1874872832 915715/1875385008 
      data        FC-Sw-A2:2.126L23       1b    0   22  FC:A   0   SSD   N/A 915465/1874872832 915715/1875385008 
      data        FC-Sw-A1:3.126L50       1a    0   23  FC:B   0   SSD   N/A 915465/1874872832 915715/1875385008
      Raid group is missing 4 disks.

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