Backing Up Microsoft Exchange Server Data

56 Copyright © Acronis International GmbH, 2002-2014
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Exchange database
There are two types of Exchange databases.
 A mailbox database stores contents of mailboxes. Mailbox content is private to the mailbox user.
 A public folder database stores public folders data. Public folder content is shared among
multiple users.
Physically, the data stored in the files of the following types:
 Database file (.edb)
 Transaction log files (p. 57) (.log)
 Checkpoint files (p. 55) (.chk).
Express full backup
A method of creating a full backup of Exchange information stores (p. 56), storage groups (p. 57), or
databases (p. 55). 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.
As compared to regular full backup:
 Express backups are created faster and occupy less space.
 The number of I/O requests to the production server is much less.
Express full backup and copy-only backup (p. 55) are mutually exclusive. You can select only one of
these methods when creating a backup plan.
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Information store (Exchange store, Managed store)
Microsoft Exchange Server stores its data in a single repository called information store (in Exchange
2003/2007), Exchange store (in Exchange 2010), or Managed store (in Exchange 2013). The primary
logical components of the information store are storage groups (p. 57) (for Exchange 2003/2007
only) and Exchange databases (p. 55).
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Mailbox-level backup
A backup that stores contents of Exchange mailboxes and/or public folders. Acronis Backup accesses
the contents using Messaging Application Programming Interface (MAPI), so backing up multiple
mailboxes may take a long time. Backing up at a mailbox level makes sense when you need to
frequently back up a small number of mailboxes. Otherwise, consider a database-level backup (p.
55).