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Dell PowerFlex 4.5.x Administration Guide

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Create volume snapshots

PowerFlex lets you to create instantaneous snapshots of one or more volumes.

About this task

The Use secure snapshots option prohibits deletion of the snapshots until the defined expiration period has elapsed.

When you create a snapshot of more than one volume, PowerFlex generates a consistency group by default. The snapshots under the consistency group are taken simultaneously for all listed volumes, thereby ensuring their consistency. You can view the consistency group by clicking View Details in the right pane and then clicking the Snapshots Consistency Group tab in the left pane.
NOTE:The consistency group is for convenience purposes only. No protection measures are in place to preserve the consistency group. You can delete members from the group.

Steps

  1. On the menu bar, click Block > Volumes.
  2. In the list of volumes, select the relevant volumes, and then click More Actions > Create Snapshot.
  3. In the Create snapshot of volume dialog box, enter the name of the snapshot. You can accept the default name, or give the new snapshot a name according to the following rules:
    • Contains less than 32 characters
    • Contains only alphanumeric and punctuation characters
    • Is unique within the object type
  4. Optionally, configure the following parameters:
    • To set read-only permission for the snapshot, select the Read Only check box.
    • To prevent deletion of the snapshot during the expiration period, select the Use secure snapshot check box, enter the Expiration Time, and select the time unit type.
  5. Click Create.
  6. Verify that the operation has finished and was successful, and click Dismiss.

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