Usage notes for Tape Manager catalog operations
Consider the following when using the TAPEMNT command with the Tape Manager catalog:
- A scratch request will fail if there are no free tapes available for the pool. The pool will be checked for free tapes first. If the pool has been defined with a FREEPOOL, that pool will be checked next. If the pool is authorized to use the system free pool, that pool will be checked next.
- If the volume ID is specified and the volume is in the system pool, the status of the tape will not be changed when the tape is unmounted.
- If RDEV is specified and the volume becomes available on a different
device, different processing occurs, depending on the volume library
type (MAN or ATL).
- A volume with a manual library type will be unloaded and the mount will remain pending.
- A volume with an automated library type will be given to the attach ID and an informational message (191) will be issued.
- If DEVPOOL is specified and a volume becomes available on a device
that is not explicitly associated with the device pool, different
processing occurs depending on the volume library type (MAN or ATL).
- A volume with a manual library type will be unloaded and the mount will remain pending.
- A volume with an automated library type will be given to the attach ID and an informational message (EUM0191I) will be issued.
- If DEVPOOL is specified on the command and there are no devices
associated with the requested device pool, the mount request will
fail since there is no way to validate that a device is in the pool.
For a Tape Manager catalog (non-RMM) scratch mount request, the system will select a scratch volume based on the pool media type. If the volume is mounted on a device that is not associated with the device pool, the mount request will remain in a pending status. No checking is performed to verify that the selected volume is compatible with the device pool for which the request was made.
- If an ATL mount request is cancelled by the Library Manager, ensure that the volume is in the ATL.
- The expiration date will be set to the default for R/W mounts whenever "no expiration" is specified on the TAPEMNT command, for both scratch and volume-specific mounts.
- A system administrator can move volumes into and out of private pools, but administrators must be explicitly authorized (using the POOLACC command) to mount tapes that are in a private pool. This requirement means that a command will be logged that will show an administrator was authorized to mount volumes from a private pool using the TAPEMNT command.