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Dell PowerFlex 4.5.x Administration Guide

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Map snapshots

Mapping exposes the snapshot to the specified host, effectively creating a block device on the host. You can map a snapshot to one or more hosts.

About this task

For Linux-based devices, the scini device name may change on reboot. Dell recommends that you mount a mapped volume to the /dev/disk/by-id unique ID, which is a persistent device name, rather than to the scini device name.

To identify the unique ID, run the /dev/disk/by-id/ command.

You can also identify the unique ID using VMware. In the VMware management interface, the device is called EMC Fibre Channel Disk, followed by an ID number starting with the prefix eui.

NOTE:You cannot map a volume if the volume is an auto snapshot that is not locked, and you cannot map the volume on the target of a peer system if it is connected to an RCG..

Steps

  1. On the menu bar, click Protection > Snapshots.
  2. In the list of snapshots, select one or more snapshots, and then click Mapping > Map.
  3. In the Map Volume dialog box, select one or more hosts to which you want to map the snapshots.
  4. Click Map, and click Apply.
  5. Verify that the operation has finished and was successful, and then click Dismiss.

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