MVS SYSTEM CODES -S413

An error occurred in opening either a direct access or a magnetic tape data set.
1. An input/output error occurred in processing a tape data set.
2. The specified data set could not be located.
3. The label or DCB parameters were incorrect.
4. A requested device was unavailable.


1. No unit was available for mounting the volume which contained the data set being opened.
2. The volume on the allocated unit (as specified by ser) could not be demounted because it was either reserved or permanently resident.

The volume serial number was not specified on the DD statement for a data set which was opened for input.
An invalid volume sequence number in the JCL specified a value greater than the number of volumes contained on the data set.
An error occurred while opening a magnetic tape data set.
The density specified in the DEN sub parameter was incompatible with the recording density of the device allocated.
An error was caused by a subsystem interface problem.
The mass storage system did not mount the requested volume.

Tape data set sequence number was specified greater than 1, but the volume serial number did not specify a tape data set.

1. Verify that the JCL is correct.
2. Rerun the job specifying a new volume or device.

Specify another device in the unit parameter of the DD statement. Determine how many volumes the data set spans, and request the appropriate volume.

Ref: www.ibmmainframes.com