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Plex failure after ATTO SFP replacement

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Category:
metrocluster
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MetroCluster
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Applies to

  • Stretch MetroCluster
  • ONTAP 9
  • ATTO 7500N with faulty SFP

Issue

  • One of the storage connections in a stretch MetroCluster is offline

Example:

    slot 1: FC Host Adapter 1d (Emulex XE201 rev. 48, <OFFLINE (hard)>)

          Board name:        111-02455

          Serial Number:     FC54482752

          Firmware rev:      12.0.378.1

          Host Port Id:      N/A

          FC Node Name:      2:000:000000:000000

          FC Port Name:      1:000:000000:000000

          Link Data Rate:    N/A

  • Immediately after replacing the faulty SFP on the ATTO bridge, an autosupport is triggered titled SYNCMIRROR PLEX FAILED
  • A number of disks show up as FAILED in sysconfig -r
Example:

Aggregate root (online, raid4, mirror degraded) (block checksums)

  Plex /root/plex0 (offline, failed, inactive, pool0)

    RAID group /root/plex0/rg0 (partial)

 

      RAID Disk     Device       HA  SHELF BAY CHAN Pool Type  RPM  Used (MB/blks)    Phys (MB/blks)

      ---------     ------       ------------- ---- ---- ---- ----- --------------    --------------

      parity FAILED              N/A                        1713523/ -

      data   FAILED              N/A                        1713523/ -

      Raid group is missing 2 disks.

Note: The aggregate remains online, only the plex is offline

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