Reasons for the incorrect number of LUNs in array LUN groups

When validating your configuration, you should check the storage array config show output to ensure that the number of LUNs in each LUN group is what you intended. The most likely cause for the incorrect number of LUNs in a LUN group is that the array LUN is not mapped to an ONTAP system.

Example of storage array config show output

The number of array LUNs in each LUN group appears in the storage array config show output, as the following example shows:

mysystem1::> storage array config show

               LUN     LUN
Node           Group   Count Array Name     Array Target Port  Initiator
------         ------ ----- -------------- -------------------- ---------- 
mysystem1        0      50   DGC_RAID5_1     201A00a0b80fee04     0a
                                             202A00a0b80fee04     0c

Explanation

The most likely reasons that an array LUN you expected to be in a LUN group is missing are as follows:

Resolving the issue

  1. If the array LUN has not been mapped to the ONTAP system, the storage array administrator has to map it.

    The process for mapping array LUNs to hosts varies among storage arrays.

  2. If the array LUN has been mapped to the ONTAP system, check zoning and the host group configuration.
  3. After the issue is fixed, run storage array config show again to confirm that the issue is fixed.