Allocating storage for VMware instant recovery

Because the disk for a recovered VM resides on the Unitrends appliance until the storage migration is complete (see How instant recovery for VMware works), you must allocate storage for instant recovery. It is recommended that you allocate storage before a VM fails to ensure that the space is available when you need it. You must allocate at least twenty percent of the used space on the original virtual disk for instant recovery.

Storage allocation can be distributed among backups/replication, vaulting, and instant recovery, depending on the identity of your Unitrends appliance. When you allocate storage for one function, it cannot be used for other functions.

Note:  You can perform the recovery from a backup system or replication target, so make sure to allocate instant recovery storage for all the Unitrends appliances that you will use for instant recovery.

To allocate storage for VMware instant recovery

1

On the Unitrends system, select Settings > Storage and Retention > Storage Allocation. You see the storage allocation chart which lists the storage used on the system.

2

Slide the storage distribution for Instant Recovery or enter the desired size in the field below the pie chart.

3

Click Confirm. You see a summary window with the new allocation.

4

Click Yes to confirm the new settings.