Configuring and Using Backup Devices

Configuring Devices for Direct Backup

Backup Device The XCopy engine must reside on the FC bridge to which the backup

Auto-detectiondevice or drive is connected (external FC bridge), or on the internal FC bridge. A backup device that is used with direct backup functionality is auto-detected whenever a direct backup session is started. If auto-detection is not used, the WWN and the LUN parameters must be entered manually; the LUN must be reconfigured every time the LUN changes.

XCopy Engine There can be more than one physical XCopy engine in a direct backup environment. Each of these physical XCopy engines can have more logical XCopy engines configured and assigned. Which of these logical XCopy engines will be used in a direct backup session is specified in the direct backup specification by specifying the backup device(s) to be used and assigning them a logical XCopy engine. The physical XCopy engine behind the logical XCopy engine specified in the backup specification must be configured for the backup system specified in the backup specification.

The following types of backup devices are supported for a Data Protector direct backup:

•standalone devices

•SCSI-II libraries

Configuration Procedure

Refer to the following online Help index keywords and perform any necessary steps before configuring backup devices as described later in this section:

•online Help index keyword “preparing backup devices”

•online Help index keyword “configuring direct backup environment” Configuring a backup device for direct backup consists of the following:

1.Configuring a standalone device or SCSI-II library.

2.Configuring XCopy engines.

3.If direct library access will be used, configuring the libtab file.

Chapter 2

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