About policy attributes for NetBackup for Exchange

With a few exceptions, NetBackup manages a database backup like a file system backup. Other policy attributes vary according to your specific backup strategy and system configuration.

For more information on policy attributes, see the NetBackup Administrator's Guide, Volume I.

Table: Policy attribute descriptions for NetBackup for Exchange policies

Attribute

Description

Policy type

Determines the types of clients that can be in the policy. In some cases the policy type determines the types of backups that NetBackup can perform on those clients. To use the Exchange database agent, you must define at least one policy of type that is MS-Exchange-Server.

Policy storage

In an Exchange 2010 DAG environment where the Exchange server is a both a client and a media server, policy storage is treated differently. If you want to back up to the local Exchange client that is also a media server, specify a storage unit group. NetBackup automatically selects the local storage unit from the storage unit group during the backup processing. If you specify a single storage unit, all backups use this storage unit.

Allow multiple data streams

Specifies that NetBackup can divide automatic backups for each client into multiple jobs. Each job backs up only a part of the list of backup selections.The jobs are in separate data streams and can occur concurrently. The number of available storage units, multiplex settings, and the maximum jobs parameters determine the total number of streams and how many can run concurrently. Not all directives in the backup selections list allow for multiple database streams.

For Exchange 2010, you can create multiple data streams at the database level. For Exchange 2007 and earlier, you can create multiple data streams at the storage group level. For MAPI mailbox and public folder backups, you can create multiple data streams at the mailbox or public folder level.

Enable granular recovery

Allows restores of individual items using Granular Recovery Technology (GRT). Users can only restore individual items from a full backup. (You can perform incremental backups using GRT, but the backup does not save granular information and you cannot restore individual items from an incremental backup.)

You can restore individual items only if the backup image resides on a disk storage unit. If you want to retain a granular backup on tape, you must duplicate the image. If you want to restore from a granular backup that was duplicated to tape, you must import the image to a disk storage unit.

Exchange Server GRT-enabled backups do not support encryption or compression. Instant Recovery backups are supported if a snapshot is copied to a storage unit.

Keyword phrase

A textual description of a backup. Useful for browsing backups and restores.

Perform snapshot backups

This option enables snapshot backups. For Exchange 2010 you must enable this option for all backup policies.

Microsoft Exchange Attributes

Indicates what database backup source you want to use for an Exchange 2010 Database Availability Group (DAG) or for an Exchange 2007 replication backup (LCR or CCR). For Exchange 2010, you can also indicate a preferred server list.

See Backup source for an Exchange 2010 DAG backup or an Exchange 2007 replication backup .

See Configuring a preferred server list for an Exchange 2010 Database Availability Group (DAG).

More Information

About disk storage units and restores using Granular Recovery Technology (GRT)

About snapshot backups with Exchange Server