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UNISOL® BARTTM makes backups effortless by allowing the easy scheduling of filesystem backups for your entire network, keeping track of your backup tapes, and by allowing users to schedule file restores using the on-line tape database. This cuts down on idle time, as users wait for their data to be replaced, as well as improving the efficiency of restoring data in the event of a loss.
An automated backup system is the best way to ensure reliable data protection. With BART, you can guarantee the integrity of data once it is distributed throughout your organization.
The following flow graph shows the interaction among the major BART subsystems, the flow of data between the BART processes and the interaction between the BART subsystems and the tape and disk devices:
UNISOL BART provides a point-and-click user-interface using OSF/Motif for the effortless configuration and maintenance of the supported filesystems and tape devices.
The following Motif screen shows the main application toolbar which depicts an icon for each of the main subsystems of the application:
Clicking the left mouse button on an icon selects the pointed subsystem and starts up an application window for the selected subsystem.
The application window for a particular schedule may look as follows:
The above schedule specifies a one-week backup cycle for systems unisol and gila with backups written in the dump format to archiver gila_dat. The schedule specifies that level 0 backups take place on Monday and Thursday, while level 5 backups take place on Tuesday, Wednesday and Friday. The schedule is currently active and is repeated every week. Mail will be sent with the backup status to user jerry@unisol. The number of days to keep this backup before the tape is expired is also specified for each level (e.g. keep level 5 dumps for 6 days).
Users can easily request files to be restored by querying the on-line database and queueing the restore request for automatic file restoration or for approval by the system administrator. The user selects the files to restore with the screen:
This screen display the contents of the online backup database. Users can select one of the available filesystems to examine from the list in the upper left pane. After selecting a filesystem (unisol:/d in the above example) the filesystem structure is displayed in the upper right hand pane. The filesystem can be traversed by double clicking on directories to examine. When the file to restore is found, selecting it will produce a list of all versions of that file that exist on tapes in the tape library in the lower left pane. Selecting a file from this list and placing it in the lower right pane with the '>>>' button, the user can create a set of files to restore. Finally the destination of the restored files can be defined in the host and directory staging area fields. When the user selects OK or Apply the list is sent for processing by the administrator. After the files have been restored mail is sent to alert the user.
The administrator can allow the automatic restoration of user restore requests or he can prioritize, modify and approve the restore requests prior to the restoration of user files. The administrator's interface is depicted in the following screen:
Using this screen the administrator can prioritize and/or group together restore requests by mounting the appropriate tapes and selecting the requests for immediate execution.
The system administrator can also perform full filesystem restores as needed (usually to restore the state of a filesystem after a catastrophic disk crash).
With BART, information managers now have a reliable, automated backup process that is designed to minimize recovery time from data loss, backup data in the limited time window available, in a cost efficient manner. Companies can now consolidate multiple sources of data, avoiding the expense and headaches of buying individual backup software for each processor.
© 1995, 2005 UniSolutions Associates, LLC