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One disk is not seen by the system

Last Updated:

Applies to

  • AFF A700
  • DS224C Disk Shelf
  • X357 disktype
  • 4-node cluster


  • The cluster is missing one disk
  • Each node has two spare disks, one for each pool
  • Only seven spare disks are seen, eight are expected
  • There are no broken, unassigned or unsupported disks
  • When the disks are listed, a disk is missing, in this example disk 1.60.0 (Bay 0) is skipped


Cluster::> disk show -container-type aggregate

                 Usable               Disk    Container   Container
Disk             Size       Shelf Bay Type    Type        Name
---------------- ---------- ----- --- ------- ----------- --------- --------
  1.60.1             3.49TB    60   1 SSD     aggregate   Node_root

1.60.2             3.49TB    60   2 SSD     aggregate   Data1

1.60.3             3.49TB    60   3 SSD     aggregate   Data1                                          
  • Output of 'storage shelf show' reports 'UNKWN LNK' for this disk

This shows that the link has been disabled at the other end of the connection, in this case the drive


cluster1::> storage shelf show

Shelf name:    ATTO1:8.shelf60
Shelf id:      60
Channel:        ATTO1:8
Module:        A
0UNKWN LNK      7         NA        0           0       0        0         0       2

Shelf name:    ATTO1:9. shelf60
Shelf id:      60
Channel:       ATTO1:9
Module:        B
0UNKWN LNK      7         NA        0           0       0        0         0       2

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