Acronis Backup for Windows Server Essentials - User Guide - Manual (Page 288)

288 Copyright © Acronis International GmbH, 2002-2014
2. In the mounted volumes, determine which logs have been committed to the database by using
the Eseutil tool. The procedure is described in step 1 of "Log truncation of online databases"
above.
3. In the respective online database or storage group, delete all the log files whose numbers are
less than the number of the current log file in the backup.
4. Unmount the mounted volumes by using the umount command.
11.1.3 Best practices when backing up application servers
11.1.3.1 Exchange Server backup
If you are not using Microsoft Exchange Server 2010 SP2 or later, it is recommended that you
periodically check the consistency of the Exchange database files.
In Exchange, consistency check is performed by running Eseutil /K. It verifies the page-level
integrity of all Exchange databases and checksums of all database pages and log files. The process of
verification can be time consuming. For information about using Eseutil /K, see:
http://technet.microsoft.com/en-us/library/bb123956(v=exchg.80).
You can perform the consistency check before or after a backup.

Before a backup. This ensures that you do not back up the damaged Exchange database files.
a. Dismount the databases.
b. Run Eseutil /K and review the verification results.
c. If the databases are consistent, mount them again and run the backup. Otherwise, repair the
damaged databases.
Refer to the "Transaction log truncation for Exchange Server" (p. 286) section for more
information about mounting and dismounting databases.

After a backup. The advantage of this method is that you do not have to dismount the databases
that are in constant use. However, the consistency check in the backup is much slower than the
consistency check of the on-disk databases.
Mount (p. 242) volumes (containing the required database files) from the disk backup in the
"Read only" mode and run Eseutil /K.
If a checksum mismatch or file header damage is detected, repair the damaged databases and
then perform the backup again.
Tip. Acronis offers a dedicated product for backing up Microsoft Exchange – Acronis Backup Advanced for
Exchange. When you use this product, Agent for Exchange automatically checks consistency of the databases
being backed up and skips the databases with a checksum mismatch or file header damage. As opposed to this
agent, Eseutil /K verifies the pages of all Exchange databases that are present on the server.
11.1.3.2 Active Directory backup
Active Directory services use a database located on the file system of a domain controller. If the
domain has two or more domain controllers, the information stored in the database is constantly
replicated between them.
Volumes to back up
To back up Active Directory, back up the following volumes of a domain controller:

The system volume and the boot volume