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After re-cabling ATTO to shelves, one or more disks in local plex become unknown

Last Updated:

Applies to

  • MetroCluster
  • ATTO FibreBridge 7500N
  • ONTAP 9


  • After re-cabling FibreBridge to shelf connections to correct mis-cabling, one or more local plexes fail.
Aggregate siteA_aggr1 (online, mixed_raid_type, mirror degraded, hybrid) (block checksums)
  Plex /siteA_aggr1/plex0 (offline, failed, inactive, pool0)
      RAID group /siteA_aggr1/plex0/rg0 (partial, block checksums, raid_dp)

      RAID Disk    Device                         HA  SHELF BAY CHAN Pool Type  RPM  Used (MB/blks)    Phys (MB/blks)
      ---------    ------                         ------------- ---- ---- ---- ----- --------------    --------------
      dparity      siteA-switchA1:8.126L1553      5a    10  0   FC:A   0   SAS 10000 1713523/3509295616 1716957/3516328368 
      parity       FAILED                                 N/A                        1713523/ -
      data         siteA-switchB2:9.126L1505      9b    10  4   FC:B   0   SAS 10000 1713523/3509295616 1716957/3516328368 
      data         FAILED                                 N/A                        1713523/ -
      data         FAILED                                 N/A                        1713523/ -
      data         FAILED                                 N/A                        1713523/ -
      data         FAILED                                 N/A                        1713523/ -
      data         FAILED                                 N/A                        1713523/ -
      data         FAILED                                 N/A                        1713523/ -
      Raid group is missing 15 disks.
  • Disks in shelves in the connected stack report unknown container type.
    • This can be true of all disks on the shelf or only some, throughout the connected stack.


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