Using an Alternate Secondary with an Initial Secondary for Recovery

Once the mapping is complete, modifications are stored on the newly mapped alternate secondary in a “live data” area associated with the LUN. Modifications can be recovered from the “live data” area. See Modifying and Recovering.

However, both processing the recovery and data modification can slow down the access response time for Instant Access users. Using Example 1: To recover using a regular Block restore followed by copying only the modifications in Recovering Modified Data, it is possible to restore the backed up data from the initial secondary and recover the modifications from the alternate secondary. That is, all changes are made to the “live data” area for the backup instance mapped by Instant Access.