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Configure and Customize Dell PowerFlex v3.6.x

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Create snapshots

Take a snapshot of one or more volumes.

About this task

This topic describes how to take a snapshot of one or more volumes.

When specifying more than one volume (a list), a consistency group is generated by default, and can be viewed in the snapshot’s detail pane. The snapshots under the consistency group are taken simultaneously for all listed volumes, thus ensuring their consistency.

Secure snapshots prohibits anyone from deleting the snapshot until the expiration time that is defined.

You can accept the default name, or define snapshot names according to the following rules:

  • Contains less than 32 characters
  • Contains only alphanumeric and punctuation characters
  • Is unique within the object type

PowerFlex objects are assigned a unique ID that can be used to identify the object in CLI commands. You can retrieve the ID via a query, or via the details pane in the PowerFlex GUI.

NOTE:

The consistency group is for convenience purposes ONLY. There are no protection measures to conserve the consistency group. You can delete members from it.

To take a snapshot, perform these steps:

Steps

  1. From the PowerFlex GUI, in the left pane, click Protection > Snapshots.
  2. In the right pane, select the relevant volume check box and click More > Create Snapshot.
  3. In the Create snapshot of volume <volume name> dialog box, enter the following information for the snapshot:
    1. Enter the Name of the snapshot.
    2. Enter the number in the Index that is used to append to the snapshot names.
    3. Select the Read Only check box to define permissions for the snapshot.
    4. Select the Use secure snapshot check box and enter the Expiration Time that the snapshot can not be deleted.
  4. Click Create Snapshot.
  5. Verify that the operation completed successfully and click Dismiss.

Results

A snapshot of the volume is created.

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