Operational guidelines by optical device type

This topic provides information on operational guidelines by device type for optical library data servers and CD-ROM, DVD-ROM, and DVD-RAM standalone optical drive devices.

Optical library dataservers

• You cannot use the default value, *MOUNTED, for the volume identifier.
• Volumes that are provided in a volume list must all be in the same library device.
• A single save data file may span several volumes in a volume list.
• For HPOFS formatted media, any volume used in a volume list becomes unusable by any save or restore operation other than the operation originally processing the volume list.

  For example:

  • Save command A writes save data fileA to volume volA.
  • Save command B writes save data fileB to volume list: volC, volB, volA.
  • Restore command A will not be able to restore from fileA on volume volA.
  • Restore command B will be able to restore from fileB on the volume list: volC, volB, volA.

CD-ROM and DVD-ROM standalone optical drive devices

• CD-ROM and DVD-ROM are read-only devices. The system does not support save commands for these devices.
• Save files cannot span multiple CD-ROM or DVD-ROM media that contain ISO 9660 media format.
• You can specify the default value, *MOUNTED, for the volume identifier. It will process the optical volume currently in the specified stand-alone device.

DVD-RAM standalone optical drive devices

• DVD-RAM devices are read and write devices. Save and restore commands are supported for DVD-RAM devices.
• You can specify the default value, *MOUNTED, for the volume identifier. It will process the optical volume currently in the specified stand-alone device.
• Multiple save data files may span several volumes in a specified DVD_RAM volume list.