Sun Microsystems Virtual Tape Library manual Recovering the server configuration

Managing virtual libraries

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Recovering the server configuration

If the VTL server configuration is lost or corrupt, you can recover it from a backup file using the procedure below.

Caution – This is a disaster recovery procedure only. Never execute it during day‐ to‐day operation of the server. Restoring a configuration overwrites existing virtual device and client configurations and does not restore VTL partition information.

▼Restoring the configuration

1.In the object tree of the VTL console, select the branch for the VTL server that has lost its configuration information.

2.From the VTL main menu, select Tools.

3.From the submenu, select Restore Configuration.

4.Click OK to confirm.

5.When prompted, locate the backup configuration file.

The VTL server restarts. Resources added after the configuration was saved will show up in the Virtual Vault after the configuration is restored. Deleted resources will be displayed in the virtual tape library with a red dot, indicating incomplete status.

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Protecting VTL metadata

The VTL database holds the metadata that maps data stored on virtual tape to locations on the physical, random‐access disk media. Without this critical information, virtual tape data cannot be recovered, so protecting it is essential.

Sun StorageTek VTL appliances protect this metadata by storing it on a RAID system, a set of storage disks configured to survive the loss of any single member of the set without loss of data.

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