HP B6960-96035 manual Impact on performance, Logging level and browsing for restore

Log Directories	Logs all detailed information about backed up directories (names,
	versions, and attributes). This represents approximately 10% of all
	detailed information about backed up files and directories.
No Log	No information about backed up files and directories is logged to
	the IDB.

The different settings influence the IDB growth, the backup speed, and the convenience of browsing for data to be restored.

Impact on performance

The logging level defines the amount of data written to the IDB during a backup. This also influences the IDB speed, and therefore the backup process.

Logging level and browsing for restore

Changing the level of stored information affects your ability to browse files using the Data Protector GUI during a restore. If the No Log option is set, browsing is not possible; if the Log Directories option is set, browsing of directories is possible; if the Log Files option is set, full browsing is possible but file attributes (size, creation, and modification dates and so on) are not displayed.

Regardless of the logging level set, it is always possible to restore your data:

•Instead of browsing for your data, you can always manually select a file to restore (if you know the name of the file).

•You can retrieve information about backed up data from the media.

Logging level and restore speed

The restore speed is approximately the same when the Log All, Log

Directories, or Log Files options are set.

If the No Log option is set, the restore speed can be slower when restoring single files. This is because Data Protector has to read all data from the beginning of an object before finding a file to be restored.

In case of a full system restore, the whole object should be read anyway, so the logging level settings do not play an important role.

200 The Data Protector internal database