Unisphere for PowerMax: NDM create dialog box does not show target array

Summary: When attempting to migrate a storage group, the create dialog box does not list the intended target array for selection, even though it shows in both CLI and in the GUI.  Even using the "symdm create -validate" command, failed with Solutions Enabler. ...

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Symptoms

Steps performed:

  1. Select the storage system.
  2. Select DATA PROTECTION > Migrations .
  3. Select the Environments tab and click Create.
  4. Select the remote storage system for the environment creation.

This is where the remote target array is not being listed

In the SYMAPI log:


09/10/2024 08:07:41.823  17672   9240 The DM Environment 'VALIDATE' operation SUCCEEDED.
09/10/2024 08:08:53.140  20988   6420   STARTING a DM 'CREATE VALIDATE PRECOPY' operation for SG 'STORAGE-GROUP'.
09/10/2024 08:08:53.140  20988   6420     tgt_srp: none, options: (none), flags: (validate precopy), tgt_pg: none, tgt_ig: none
09/10/2024 08:08:53.141  20988   6420     SrcArray: 000123456789 TgtArray: 000987654321 Num of Devs: 2
09/10/2024 08:08:53.141  20988   6420       SrcDevs: [ 0090 00A4 ]
09/10/2024 08:08:53.844  20988   6420     Analyze Configuration..........................................Validated.
09/10/2024 08:08:53.847  20988   6420     Initialize Replication Environment.............................Validated.
09/10/2024 08:08:53.907  20988   6420     Duplicate Device(s) on Target..................................Validated.
09/10/2024 08:08:53.909  20988   6420     Update target SG device(s).....................................Validated.
09/10/2024 08:08:53.910  20988   6420 EMC:SYMDM                  validateStorGrpCreat Storage group STORAGE-GROUP, already exists on the array
09/10/2024 08:08:53.911  20988   6420     Create Storage Group(s) on Target..............................Failed.
09/10/2024 08:08:53.912  20988   6420 EMC:SYMDM                  validateIGEntryInMul The initiator wwn 2100f4c7aa0783ce is already in use in Initiator Group INITIATOR-GROUP for array 000987654321
09/10/2024 08:08:53.912  20988   6420     Create Initiator Group(s) on Target............................Failed.

Cause

There is a conflict with an existing Initiator Group on the target array therefore NDM will not offer this as a valid target array.

Resolution

Please take extreme caution when changing or deleting existing masking views and/or initiator groups.

  • Check the masking view where this initiator group resides. 
  • See if there are any assigned volumes and take corrective action to either delete the masking view or Initiator Group 
  • Following the correction of the masking view or initiator group the create dialog box will display the intended target array.

Additional Information

NOTE: It does not matter if the source or target array are showing "LOCALLY" with a 'symcfg list' or in the Unisphere for PowerMax dashboard.

Affected Products

Solutions Enabler Series, Unisphere for PowerMax
Article Properties
Article Number: 000228546
Article Type: Solution
Last Modified: 20 Dec 2024
Version:  2
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