HP B6960-90078 manual What Is Load, Balancing?, 232

Backup

Using Backup Options

Table 5-2
Log	When this logging level is selected, all detailed
Directories	information about backed up directories (names,
	versions, and attributes) is logged to the IDB. You can
	browse only directories before restoring. However,
	during the restore Data Protector still performs fast
	positioning because a file is located on the tape near
	the directory where it actually resides. This option is
	suitable for filesystems with many auto-generated
	files, such as news and mail systems.
No Log	When this logging level is selected, no information
	about backed up files and directories is logged to the
	IDB. You will not be able to search and browse files
	and directories before restoring.

	The different logging level settings influence the IDB growth, backup
	speed, and the convenience of browsing data for restore.
	To be able to select the most appropriate logging level setting, it is
	important to understand the consequences. Refer to the HP OpenView
	Storage Data Protector Concepts Guide for more information on logging
	level and usage recommendations.
	Load Balancing: Balancing the Usage of Backup Devices
What Is Load	By default, Data Protector automatically balances the usage of backup
Balancing?	devices specified for backup. This is also called load balancing, and it
	ensures equal usage of the devices. When you run backup with the Load
	Balancing option, Data Protector uses devices in the order they are
	specified in the load balanced backup specification.
NOTE	If you disable the Load Balancing option, you have to select the backup
	device which is used to back up each object in the backup specification. If
	a device becomes unavailable, then the objects that should be backed up
	to the device will not be backed up.
	See the HP OpenView Storage Data Protector Concepts Guide for more
	information on load balancing.

232 Chapter 5