Virtual tape storage error messages

Typically, when an error occurs with virtual tape storage, the operation stops and you receive an inquiry or escape message. The message indicates that there is something wrong with the volume being processed and provides recovery instructions. Follow the instructions to recover from the inquiry or escape message.

The most common inquiry and escape messages that occur with virtual tape storage are:

Inquiry messages

CPA4262: Volume &5 on device &4 is write protected (C R).

CPA6745: Volume on device &4 is write protected (C R).

CPAB8E6: Device &1 cannot be varied off at this time.; This message is sent when an attempt is made to vary off an independent disk pool containing a virtual volume that is in use by an active virtual tape device. The Work with ASP Jobs (WKRASPJOB) command can be used to determine which jobs are using the independent disk pool.

Escape messages

CPF415B: Device list not correct. Multiple device descriptions cannot be specified when virtual tape is used.

CPF41B0: Incorrect image catalog name specified.

CPF41B3: No more volumes to mount from catalog. You specified VOL(*MOUNTED) and the last accessible virtual tape volume in the catalog was already used and unloaded.

CPF41B4: Virtual tape volume not available. The specified volume is in unloaded status.

CPF41B5: Virtual tape volume not found.

CPF4371

Device not operational.

This message is sent when an unexpected error occurs. Possible causes are:

The virtual volume stream file was removed while in use.
A forced vary off operation was performed on an independent ASP containing a virtual tape volume that was in use.

It is necessary to vary the virtual tape device description off and back on with the VRYCFG command with the RESET(*YES) parameter to clear the error.

CPF4373: End of media on device.; This message is sent when the storage threshold of the ASP containing the virtual tape volume exceeds the maximum allowed storage for virtual tape, or when the maximum storage allowed threshold of the user profile that owns the virtual tape volume is exceeded, and additional storage cannot be allocated to continue the operation. The default maximum allowed storage for virtual tape is the greater of 95% or 5 GB of free space remaining in the ASP. The catalog ASP threshold value can be used to change the maximum allow storage.

CPF6760: Device &1 is not ready.; This error is reported when the requested virtual volume cannot be mounted. Typically this error occurs when the requested virtual volume is already mounted in a different virtual device through a reference or a dependent image catalog, and the mount is not allowed.

CPF67F5: Duplicate cartridge or virtual volume name found.

To see any of these messages, type DSPMSGD CPFxxxx at a command line and press Enter.

Diagnostic messages

CPDBC04: Error on command &3 during virtual tape function &2. Reason code 26.; Reason code 26 is sent when a command to mount or change a virtual volume cannot be processed because the volume is currently mounted in a device. The volume needs to be unloaded or unmounted from the device it is currently in before the command can be completed.

Note: If the virtual volume was used by another partition and left mounted, then there may not be any image catalogs that show that the volume is in a mounted status. The CHKTAP command with ENDOPT(*UNLOAD) can be used to unload the virtual tape volume.