Scheduling the System Admin process

Configuring the DS-System : Configuring scheduled tasks : Scheduling the System Admin process

You can schedule several System Admin tasks on the DS-System. Each task will perform one pass through each backup set on the DS-System. For more information about System Admin see “Running System Admin on a DS-Client account or backup set”.

The DS-System Admin process is like NTFS CheckDisk: it only checks physical consistency (valid file headers and links). No check of the logical validity of data is performed (such as invalid names, name duplication, ID duplication, reconstruction failure, or consistency). The DS-System Admin checks data once every 30 days (like CheckDisk). Sometimes checks are required more often, so that anomalies can be found and fixed faster (either manually or automatically).

If the DS-System Admin process detects corrupted files, the files cannot be restored. Once DS-System Admin determines a file is an invalid format file, the file and its dependents will be moved to a directory for invalid files. If the DS-System is part of a replication group, the DS-System Admin will try to recover the corrupted file from one of the other replication DS-Systems. If the file is successfully recovered, then no action is required by the DS-Client. If the DS-System is not part of a replication group or the valid file is not found on a replication DS-System, then DS-System Admin deletes the invalid data. The backup set is marked as “out-of-sync” so that the DS-Client will synchronize it later and eventually, if the file still exists on the source computer, back it up again to the DS-System.

You can clean recycled generations to optimize storage space. This can be based on the number of generations, the total size of recycled generations, or the age of recycled generations (in days). For more information, see “Optimizing storage space”.

The DS-System advanced configuration RecycleSwitch parameter determines if delta generation recycling is performed. Recycling increases the speed of backups, but it also increases DS-System storage size until master reconstruction or optimization is performed. For more information, see “Configuring the advanced settings”.

To schedule the System Admin process:

1. On the Setup menu, click Schedule. The Schedules dialog box appears.

F1 Help: "Schedules"

2. To add a scheduled task, click Add. The New Schedule Wizard appears.

NOTE: To edit a scheduled task, select it and click Edit.

F1 Help: "New Schedule Wizard - Select Schedule Type"

3. On the Select Schedule Type page, select System Admin, and then click Next.

4. On the Select Schedule Time page, do the following:

a) Under Detail Type, select the frequency of the schedule.

b) Under Daily Frequency, specify when the schedule will start, and optionally, when to force the scheduled activity to end.

c) Click Next.

F1 Help: "Schedule - Select Schedule Time"

5. On the System Admin Option page, under Scan Options, select what type of scan the System Admin will perform on the backup sets:

• Perform Regular Scan to Update Statistical Info:

Full	Force the System Admin to scan all directories and files (this may be slow).
Regular (faster process)	System Admin will skip directories checked by a previous System Admin, and scan only new or modified directories.

• Perform Full Scan to Update Stored Size Invoice Info: checks only the stored size, no file consistency check performed.

F1 Help: "Schedule - Select Options (System Admin)"

6. Click Finish.