VPLEX: Distributed Device Showing Cluster-1 Leg Contains Cluster-2 Extent in UI

Summary: VPLEX UI displays the anatomy of a distributed device as containing an extent provisioned from the remote site.

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Symptoms

The VPLEX UI displays the anatomy of a distributed device as having a leg containing an extent that is being provisioned from the remote cluster. 

Cause

An extent used to create each leg of the distributed device has the same name.

This is determined by going to the relevant context in the VPlexcli: 

  • VPlexcli:/> cd /distributed-storage/distributed-devices/

And then running the command:

  • show-use-hierarchy name_of_distributed_device 
Where name_of_distributed_device is the name of the distributed device that you want to look at.

Example: 

VPlexcli:/distributed-storage/distributed-devices> ll
Name                                        Status   Operational  Health  Auto                                                                                            Rule Set Name       Transfer
------------------------------------------  -------  Status       State   Resume                                                                                          ------------------  Size
------------------------------------------  -------  -----------  ------  ------                                                                                          ------------------  --------
 
sharry_device                              running  ok           ok      true                                                                                            cluster-1-detaches  128K



VPlexcli:/distributed-storage/distributed-devices> show-use-hierarchy day_apps
virtual-volume: day_apps_vol (5G, distributed @ cluster-1, unexported)
  distributed-device: sharry_device (5G, raid-1)
    distributed-device-component: migtest1 (5G, raid-0, cluster-2)
      local-device: EXTENT_MIGRATE_migrationtest0607 (5G, raid-1)
        extent: extent_sharry1_1 (5G)
          storage-volume: VPD83T3:600601xxxxxxxxxxxxxxxxxx (5G)
            storage-array: EMC-CLARiiON-APM001xxxxxxx
    distributed-device-component: sharry_device2017Jul17_083255 (5G, raid-0, cluster-1)
      extent: extent_sharry1_1 (5G)
        storage-volume: sharry1 (5G)
          logical-unit: VPD83T3:600601yyyyyyyyyyyyyyyyyyyyy
            storage-array: EMC-CLARiiON-APMxxxxxxxx

Resolution

The names of the extents are cosmetic. You can change the name of one of the extents by going to the correct context and issuing the command to change the name.

Example: 
From VPlexcli, go to the relevant context and issue the command to change the name:

  • /clusters/cluster-2/storage-elements/extents> set extent_sharry1_1::name extent_sharry1_2

After the command runs, you can run the show-use-hierarchy command again to look at the new anatomy of the distributed device.

VPlexcli:/distributed-storage/distributed-devices> show-use-hierarchy day_apps
virtual-volume: day_apps_vol (5G, distributed @ cluster-1, unexported)
  distributed-device: sharry_device (5G, raid-1)
    distributed-device-component: migtest1 (5G, raid-0, cluster-2)
      local-device: EXTENT_MIGRATE_migrationtest0607 (5G, raid-1)
        extent: extent_sharry1_1 (5G)
          storage-volume: VPD83T3:600601xxxxxxxxxxxxxxxxxx (5G)
            storage-array: EMC-CLARiiON-APM001xxxxxxx
    distributed-device-component: sharry_device2017Jul17_083255 (5G, raid-0, cluster-1)
      extent: extent_sharry1_2 (5G)
        storage-volume: sharry1 (5G)
          logical-unit: VPD83T3:600601yyyyyyyyyyyyyyyyyyyyy
            storage-array: EMC-CLARiiON-APMxxxxxxxx

Affected Products

VPLEX VS6

Products

VPLEX Series, VPLEX VS2
Article Properties
Article Number: 000167949
Article Type: Solution
Last Modified: 11 مارس 2026
Version:  4
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