Systemstatebackupmethod

Supported clients

This option is valid for Windows clients.

Options file

Place this option in the client options file (dsm.opt). When specified in the dsm.opt file, the option affects system state backups created by BACKUP SYSTEMSTATE commands, and system state data backed up by INCREMENTAL commands. However, the only command that you can specify this option on is the BACKUP SYSTEMSTATE command.

Schedule definitions

You can also specify this option on the options parameter of a schedule definition on schedules that have both action=backup and subaction=systemstate set. Defining an infrequent schedule with this option set to FULL ensures that you periodically perform a full backup of Windows system state data.

Parameters

PROGressive

With the PROGressive method, the system writer portion of the system state data is backed up using the progressive incremental backup method. That is, if system writer files have not changed since the last system state backup, they are not included in this backup. Only the changed system writer files are backed up. This is the default system state backup method.

This type of system state backup uses the least network bandwidth and Tivoli® Storage Manager server storage, but it increases the amount of Tivoli Storage Manager database processing required to keep track of the changes.

OPPortunistic

With the OPPortunistic method, if any system writer files have changed since the last system state backup, all system writer files are backed up.

This method, like the PROGressive method, also uses the least network bandwidth and Tivoli Storage Manager server storage if system writer files have not changed since the last system state backup. If any system writer files have changed since the last system state backup then the system writer is backed up in full, which uses more network bandwidth and Tivoli Storage Manager server storage. With the OPPortunistic method, the amount of Tivoli Storage Manager database processing that occurs is less than that caused by the PROGressive method.

FULL

When FULL is specified, all system writer files are backed up, even if they have not changed since the last system state backup.

This type of system state backup uses the most network bandwidth and Tivoli Storage Manager server storage because all system writer files are backed up during each system state backup operation. However, this system state backup method causes little Tivoli Storage Manager database processing.