# Reverting Snapshots with Hardware Revert on UNIX Systems

Does Not Apply To: Microsoft Hyper-V, VMware, and Dell EMC VPLEX with HPE Alletra Storage MP backend arrays.

You can revert snapshots to an earlier version using the application aware method on UNIX operating systems.

Caution

Reverting is an irreversible operation. After performing a revert operation, you cannot use the associated storage policy for further auxiliary copy operations.

## Before You Begin

Review the supported configurations for revert operation. For more information, see Revert for Storage Arrays.

## Procedure

1. To freeze the UNIX cluster, type the following command line.

   `clusvcadm -Z <group>`

2. From the Command Center navigation pane, go to Manage > Infrastructure.

   The Infrastructure page appears.

3. Click the Arrays tile.

   The Arrays page appears.

4. In the row for the storage array or the disk, click the action button , and then click List snapshots.

   The List of snapshots page appears.

5. Select the snapshots that you want to revert.

6. In the upper-right area of the page, click Hardware revert.

   The Confirm revert dialog box appears.

7. Click YES.

8. To unfreeze the UNIX cluster, type the following command line.

   `clusvcadm -U <group>`

## What to Do Next

For the Dell EMC XtremIO storage array, after the operation is complete, manually delete the original volume snapshot from the array.

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