Restore options for streaming restores of Exchange databases

The Roll-Forward Recovery and Point-in-Time Recovery options correspond to the Delete existing transaction logs prior to restore option in NetBackup 6.5 and earlier. However, the default option has changed. In those previous releases, Delete existing transaction logs prior to restore was enabled by default, which corresponds to Point-in-Time Recovery. The new default option is Roll-Forward Recovery.

Different options are available when you perform a MAPI mailbox restore or a snapshot restore.

See Restore options for restores of Exchange Server mailbox objects or public folder objects.

See Snapshot restore options.

Table: Restore options for streaming restores of Exchange databases

Option

Description

Roll-Forward Recovery (Replay all log files)

Retains the existing transaction logs. Exchange replays the transaction logs that are part of the restore, followed by any transaction logs that currently exist.

Point-in-Time Recovery (Replay only restored log files)

Restores the database and replaces only the transaction logs that existed at the time of backup.

Temporary location for log files

Enter a location where the associated log files are kept until the database is restored. The default location is c:\temp. If you choose to restore storage groups, NetBackup creates a subdirectory in c:\temp for each storage group. It keeps log files for each storage group in the corresponding subdirectory.

If Commit after last backup set is restored is selected during the restore, Exchange applies to the database. Then it applies the current log files. After the restore is complete, Exchange deletes the log files from the temporary location (including any subdirectories).

Note:

Make sure the temporary location for log files is empty before you start a restore job. If a restore job fails, check the temporary location (including subdirectories) to make sure any previous log files from a previous restore job were deleted.

Dismount database prior to restore

Dismounts the database(s) before the restore begins. This option dismounts all of the databases in the storage groups that you want to restore, even if a database is not selected for restore. By default this option is not selected.

This option also sets the Database can be overwritten by a restore flag in Exchange 2007.

Note:

Use this option with caution. Ensure that you selected the correct database to restore before you choose to dismount it with this option.

Commit after last backup set is restored

This option should only be set on the last job of a multi-job restore. This option enables the restore operation to play through log files and roll back any uncompleted transactions. If this option is not selected, the database needs to be mounted manually after the restore.

If Commit after last backup set is restored is selected when an intermediate backup is applied, you cannot restore further backups. You must restart the restore operation from the beginning.

Mount database after restore

Mounts the database so that it is available to users.

Redirect to Recovery Storage Group (RSG) (Only for Exchange 2007)

This option is not applicable for streaming restores.

Start Restore

Initiates the restore operation.

More Information

About existing transaction logs

Restoring an Exchange 2007 or Exchange 2003 streaming backup to a recovery storage group