What data items can be backed up and what backup types are used?

While creating a backup plan, you can select either the Microsoft Exchange Information Store or the Microsoft Exchange Mailboxes data type.

Microsoft Exchange Information store

When you select this data type, the software will perform a database backup.

You can select the following items to back up:

The database backups are the basis for disaster recovery scenarios when it is necessary to recover lost or corrupted databases, storage groups, or entire information store. Granular recovery from database backups allows for restoring mailboxes, public folders, e-mails, contacts, calendar events, journal entries, notes, and more.

Why some databases are not backed up

The dismounted databases are skipped during backup. The backup task gets the "Succeeded with warning" result, if the task backed up at least one database but skipped others because they were dismounted. The backup task gets the "Failed" result, if the task was completed but skipped all of the databases because they were all dismounted.

During database backups, Agent for Exchange automatically performs consistency check of database files. It verifies the page-level integrity of the databases being backed up and validates the checksums of all database pages and log files. Databases with a checksum mismatch or file header damage are skipped during the backup.

Database backup types

Microsoft Exchange mailboxes

Not available when backing up Exchange 2013 data.

When you select this data type, the software will perform a mailbox backup.

You can select the following items to back up:

By using the exclusion filters, you can specify items to be skipped during a mailbox backup.

After a mailbox backup, transaction log files are not truncated.

How to use a mailbox backup

A mailbox backup gives you the additional flexibility to back up individual mailboxes or public folders without backing up the entire database. We recommend that you use a mailbox backup to protect the most important mailboxes or if you need to back up less than 15 GB of data. For larger volumes of data, a database backup is more effective. It will take less time and you can recover individual mailboxes, e-mails, or other data items, as well as the entire database.

Limitations of a mailbox backup

Mailbox backup types