The following are required when restoring a backup system:
| • | Both the original system being restored and the new system must be running Unitrends version 7.0 or higher. |
| • | A fresh system to restore to must be available. This can either be a new or a re-imaged system. If you need to re-image a system for this process, contact your authorized Unitrends partner or Unitrends Support for additional details before proceeding. |
| • | The new system must be configured as described in Configuring the newly imaged system before you start the DR procedure. |
| • | If restoring to a Recovery Series appliance, the new appliance must have a minimum of 200GB of storage space available, and at least as much storage space as the original system. |
| • | If restoring to a Unitrends Backup system, you’ll need to add a minimum of 200GB of backup storage space or as much storage as the original system, whichever is higher. |
| • | You must have a replicated backup or archive from which to restore. (DR from tape archive is not supported.) |
Additional DR considerations are listed here. You will be asked to make choices during the DR process. It is best to consider your options before you start the DR procedure.
| • | The new backup system can be set up with additional storage devices that will house restored backups. This has to be done prior to the restore process. |
| • | During DR you will choose whether to retain the storage devices on the new system or restore devices from the original system. See Selecting storage devices during DR for details. |
| • | If encryption is configured on the original system, you will reset encryption on the new system after system metadata has been restored. To do this, you must know the original system’s encryption passphrase. |