|Maintenance and Troubleshooting||<<||>>|
Once you have backed up your Microsoft Exchange Server computer, you can restore it in the event of lost data or a catastrophe or to validate your backup. When restoring information, Microsoft Exchange Server services stop, and users cannot use them until the server is restored.
Use the following procedure to restore an information store on the same server it was backed up from.
|Erase all existing data||Erases all data on the server pertaining to the database being restored. This option must be selected when you want to delete database information currently on the hard disk.|
|Private||You must select both Private and Public, even if the backup contains only one of these databases.|
|Public||You must select both Private and Public, even if the backup contains only one of these databases.|
|Start Service After Restore||Starts the directory or information store service after the restore is finished.|
|Verify After Restore||Verifies the contents of the files restored to disk from the files on tape, and logs any exceptions.|
|Destination Server||The server that the backup will be restored to.|
You can restore an information store to a Microsoft Exchange Server computer that is different from the one you backed up. This enables you to recover individual items (messages or folders) from a backup without restoring over a server that is in use. This is a last-resort method for retrieving items from individual mailboxes or public folders. It requires an additional computer that has enough hard drive disk space to restore the entire backup and that meets the hardware requirements to run a Microsoft Exchange Server computer. The alternate server cannot replicate its directory with the existing organization.
Warning If you type your production server name as the destination server name in the Restore Information dialog box, you will restore over your production server.
If you've set a deleted item retention period on a mailbox or private information store, users can easily restore messages after they've been deleted from their mailbox. For more information about setting a deleted item retention period on a user's mailbox, see Microsoft Exchange Server Getting Started.
If you haven't set a deleted item retention period, you can recover deleted messages by restoring the information store from tape backup to an alternate server and performing the following steps.
To restore a directory or information store from a backup that was performed while the server was offline, you must first stop the Microsoft Exchange Server services on the server being restored.
Note After you restore an information store from an offline backup, run ISINTEG using the -patch switch, restart the services, and then run the DS/IS consistency adjustment tool.
If a server is catastrophically destroyed, the information must be restored from a backup.