Installation guide
25  Copyright © Acronis International GmbH, 2002-2014. 
  Transaction log 
Specify on what schedule (Add schedule...) to perform a transaction log backup. 
If the archive contains no full backups at the time of the task run, a full backup is created instead 
of the transaction log backup. 
Microsoft Exchange Mailboxes 
If you selected Microsoft Exchange Mailboxes data type, the following backup types are available: 
  Full backup 
Specify on what schedule (Add schedule...) to perform a full mailbox backup. 
  Incremental backup 
Specify on what schedule (Add schedule...) to perform an incremental mailbox backup. 
If the archive contains no backups at the time of the task run, a full backup is created instead of 
the incremental backup. 
Clean up archive 
Specify how to get rid of old backups: either to apply retention rules regularly or clean up the archive 
during a backup when the destination location runs out of space. 
By default, the retention rules are not specified. This means older backups will not be deleted 
automatically. 
Note, in the Advanced settings of the Retention rules window for Exchange backups there is no 
option to consolidate a backup to be moved or deleted that has dependencies. The outdated backup 
(marked with the 
  icon) will be kept until all backups that depend on it also become outdated. 
Then, all the chain will be deleted at once during the regular cleanup. If you chose moving outdated 
backups to the next location, the backup will be copied there without delay. Only its deletion from 
the current location is postponed. 
Replication 
[Optional] Specify whether to copy backups to another location. For more information about backup 
replication, see the "Setting up replication of backups" of the product Help or the User Guide for 
Acronis Backup Advanced. 
When to validate 
[Optional] Define when and how often to perform validation and whether to validate the entire 
archive or the latest backup in the archive. 
5.4  Backup modes 
5.4.1  Express full backup method 
The express full backup method allows creating full backups of Exchange information stores, storage 
groups, or databases in deduplicating vaults. With this method, Acronis Backup backs up only the 
changes that have occurred since the previous full backup. The data that has not changed is replaced 
with links to it in a newly created backup. 
As compared to regular full database backups: 
  The express full backups are created much faster and occupy less space. 










