Backup

Using Backup OptionsUsing Backup Options

Data Protector offers a comprehensive set of backup options to help you fine-tune your backups. All options have default values that are appropriate for most cases.

The availability of backup options depends on the type of data being backed up. For example, not all backup options available for a filesystem backup are available for a disk image backup. Common and specific application options for Exchange, SQL, and so on, are described in the HP OpenView Storage Data Protector Integration Guide.

Additionally, the User defined variables function lets you specify a variable name and its value for flexible operation on some platforms and integrations, for example, for backing up MPE platforms.

The backup options can be grouped as follows:

•Backup specification options, such as Load balancing, Ownership, and pre- and post-execoptions for the whole backup specification.

•Object options specifying how different backup objects, such as filesystems or disk images, are backed up.

It is important to understand that object options can be set on two levels. First, you can set the default object options for all filesystems and for all disk image objects in the backup specification separately. Then you can set them differently for a specific object. These settings will override the defaults. For example, to compress data from all clients except for one with a slow CPU, set compression to ON when setting filesystem options. Then, select the slow client and set compression to OFF for this client.

•Device options define the behavior of backup devices. If you do not set the device options, the values are read from the device definition.

•Schedule options define the backup type, network load, and data protection for each individual or periodic scheduled backup. With split mirror or snapshot backup, in the case of ZDB disk or ZDB disk/tape backups (instant recovery enabled), you specify also the

Split mirror/snapshot backup option.

Chapter 5

225