Product specifications

14 Performing a Partial Restore of an

Interplay Production Database

Interplay Administrator v3.0 introduces a new option to the InterplayRestore tool that lets you

select an incremental backup to use for the restore process, without restoring the complete

database. Restoring from one or more incremental backups is referred to as a partial restore.

Prior to this release, the InterplayRestore tool always restored the complete database, even if you

selected to restore from an incremental backup. Performing a partial restore can save a

significant amount of time, depending on the size of the database.

See the Avid Interplay Engine and Avid Interplay Archive Engine Administration Guide for

complete information about backing up and restoring.

When to Perform a Partial Restore

One example of an effective use of a partial restore is if a facility is replacing its Interplay Engine

with a new server. This is often a gradual process that takes several days. For example, you might

create a database on a new server by performing a complete restore of the existing database on

Monday. You test the system on Tuesday. If all goes well, you perform a partial restore on

Wednesday to add changes that took place in the database since the last complete backup, and

then bring the new server on line.

Make sure you have performed a full restore of the last complete backup before you

perform a partial restore. A partial restore only restores incremental changes since the last

complete backup.

Selecting from the Backup Chain

When you run the InterplayRestore tool in interactive mode (without command line options), and

select a backup to restore, a backup chain of files is displayed. The backup chain is determined

by the backup you selected to restore. In the following example, you select incremental backup

entry 3. The backup chain lists the last full backup and any subsequent incremental backups.

[1] 04 February 2013 16:39:00 full

[2] 04 February 2013 16:42:00 incremental

[3] 04 February 2013 16:44:00 incremental

[4] 24 February 2013 01:00:00 full

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