Veritas NetBackup™ Administrator's Guide, Volume I

General level

Enables logs for bpinetd, bpbkar, tar, and nbwin. The higher the level, the more information is written. The default is 0.

TCP level

Enables logs for TCP.

Wait time before clearing archive bit

Specifies how long the client waits before the archive bits for a differential incremental backup are cleared. The minimum allowable value is 300 (default). The client waits for acknowledgment from the server that the backup was successful. If the server does not reply within this time period, the archive bits are not cleared.

This option applies only to differential-incremental backups. Cumulative-incremental backups do not clear the archive bit.

Use change journal

This option works together with the Use Accelerator policy attribute and the Accelerator forced rescan schedule attribute.

See Accelerator and the Windows change journal.

See Use Accelerator (policy attribute).

See Accelerator forced rescan option (schedule attribute).

Incrementals based on timestamp

Specifies that files are selected for the backups that are based on the date that the file was last modified. When Use change journal is selected, Incrementals based on timestamp is automatically selected.

Incrementals based on archive bit

Specifies that NetBackup include files in an incremental backup only if the archive bit of the file is set. The system sets this bit whenever a file is changed and it normally remains set until NetBackup clears it.

A full backup always clears the archive bit. A differential-incremental backup clears the archive bit if the file is successfully backed up. The differential-incremental backup must occur within the number of seconds that the Wait time before clearing archive bit property indicates. A cumulative-incremental or user backup has no effect on the archive bit.

Disable this property to include a file in an incremental backup only if the date and time stamp for the file has changed since the last backup. For a differential-incremental backup, NetBackup compares the date/time stamp to the last full or incremental backup. For a cumulative-incremental backup, NetBackup compares the timestamp to the last full backup.

If you install or copy files from another computer, the new files retain the date timestamp of the originals. If the original date is before the last backup date on this computer, then the new files are not backed up until the next full backup.

Time overlap

Specifies the number of minutes to add to the date range for incremental backups when you use date-based backups. This value compensates for differences in the speed of the clock between the NetBackup client and server. The default is 60 minutes.

This value is used during incremental backups when you use the archive bit and when you examine the create time on folders. This comparison is done for archive bit-based backups as well as date-based backups.

Communications buffer size

Specifies the size (in kilobytes) of the TCP and the IP buffers that NetBackup uses to transfer data between the NetBackup server and client. For example, specify 10 for a buffer size of 10 kilobytes. The minimum allowable value is 2, with no maximum allowable value. The default is 128 kilobytes.

User directed timeouts

Specifies the seconds that are allowed between when a user requests a backup or restore and when the operation begins. The operation fails if it does not begin within this time period.

This property has no minimum value or maximum value. The default is 60 seconds.

Maximum error messages for server

Defines how many times a NetBackup client can send the same error message to a NetBackup server. For example, if the archive bits cannot be reset on a file, this property limits how many times the message appears in the server logs. The default is 10.

Keep status of user-directed backups, archives, and restores

Specifies how many days the system keeps progress reports before NetBackup automatically deletes them. The default is 3 days.

Perform default search for restore

Instructs NetBackup to search the default range of backup images automatically. The backed up folders and files within the range appear whenever a restore window is opened.

Clear the Perform default search for restore check box to disable the initial search. With the property disabled, the NetBackup Restore window does not display any files or folders upon opening. The default is that the option is enabled.