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Druva Documentation

Snapshots that you can restore

Phoenix Editions: File:/tick.png Business File:/cross.png Enterprise File:/tick.png Elite

For a Hyper-V server, you can restore the following virtual machine snapshots:


When you trigger a restore, Phoenix lets you choose the type of snapshot you want to use to restore your data. You can also delete snapshots when you select snapshots for restore.  The types of snapshots you can use to restore virtual machines are described in the following sections. 


  • You cannot delete the most-recent snapshot of a virtual machine.
  • You cannot delete cold snapshots. Cold snapshots get deleted as per the retention policy.

Warm snapshot restore

A Warm snapshot restore is restoring of a point-in-time images of the backed up virtual machine dating back to 90 days in time that are stored in the warm storage of the Phoenix Cloud. Such a restore operation continues until the server data is restored to the specified location.

To locate Warm snapshots, expand Warm in the Restore Data window. 

Cold snapshot restore

A Cold snapshot restore is an on-request restore of the backed up virtual machine dating back to more than 90 days in time. Such data, known as cold snapshots, is stored in archival storage of the Phoenix Cloud. In the event of loss or corruption of this data, you can perform a restore by using the cold snapshots.

To start a restore of cold snapshots, you must first initiate a defreeze operation, in which Phoenix retrieves your data from archival storage. The retrieved data is considered as thawed and is available for restore. After your data is thawed, Phoenix sends an email informing you about the availability of your data, and also the duration for which your data remains available. After you receive this email, you can restore this thawed data. 

To locate Cold snapshots, expand Cold in the Restore Data window. To locate Thawed snapshots, expand Thawed in the Restore Data window. 

How to defreeze cold snapshots

  1. Log on to Phoenix Management Console.
  2. On the menu bar, click All Organizations, and select the required organization from the drop-down list.
  3. On the menu bar, click Protect > Hyper-V.
  4. Click the Configured Virtual Machines tab.
  5. In the Name column, click the virtual machine name that you want to restore.
  6. Click Restore.
  7. In the left pane, expand Cold, and click the snapshot that you want to defreeze.
  8. Under Home, click Defreeze

Note: This data stays in the thawed state for the duration mentioned in the email. This duration is fixed and cannot be changed. Ensure that you restore your thawed data within this duration.

Hot snapshot restore

A hot snapshot restore is an on-demand restore of the server data that resides on Phoenix CloudCache. Hot snapshots are point-in-time images of backed up virtual machines stored on Phoenix CloudCache. Such a restore operation continues until your server data is restored to the specified location.

 To locate Hot snapshots, expand Hot in the Restore Data window. 

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