IEF233A

Explanation
Note: For Automated Tape Library dataservers (including
Virtual Tape Servers), message IEF233A is not issued to any operator
console.  It is only issued to the System Log. Also, for tapes
that have been premounted using the operator MOUNT command, message
IEF233A is issued, but not to any operator console.
The
message asks the operator to mount a volume. This message is issued
by allocation for batch allocations (that is, JCL) which do not specify
DEFER. (For mounts with DEFER coded, see message IEC501A.)
In
the message text: dev
The device number.
ser
The volume to be mounted as follows: A 6-digit serial number.  The volume with that serial number is
to be mounted on device dev.
SCRTCH: A scratch volume is to be mounted. SCRTCH is used when
the dataset being created on the non-specific volume is temporary
[DISP=(NEW,DELETE) or DSN=&&tempname].
PRIVAT: A private volume is to be mounted. PRIVAT is used for
all other cases of non-specific volumes. It will be marked PRIVATE
and demounted at the end of the job. 
A number beginning with L: The volume to be mounted is unlabeled.
The number is an internal serial number assigned by the system to
the unlabeled volume. It is of the form xxxyy,
where xxx is the data set number and yy is
the volume sequence number for the data set.

labtyp
The scratch tape volume must have the type of label specified
by labtyp: SL for standard label or standard user
label, NSL for non-standard label, AL for ANSI label, or NL for no
label or by-pass label.
jobname
The name of the job.
stepname
The name of the job step.
dsname
If a MONITOR DSNAME command is active, the dsname is
of a nontemporary data set requiring the volumes. The data set name
will not be specified for data sets being deleted. If the data set
name causes the message to exceed 70 characters, the data set name
will appear on the second line of the message text.
mediatype
The media type that is to be mounted to satisfy this scratch request.
storgrp
The storage group of the device being mounted.

System action
The job step waits for the volume to be mounted
if the device is direct access. If a scratch volume is to be mounted,
all other jobs requiring the same device group will not be allocated
until the operator responds to this message.

Operator response
For a reel tape, if ser is
SCRTCH or PRIVAT, make sure that the file protect ring has been inserted
in the volume. For a cartridge tape, if ser is
SCRTCH or PRIVAT, make sure that the file protect tab is set to allow
writing.
Mount volume ser on the device;
then ready the device.
If a mount is requested for a device
with a non-removable volume, ready the device to indicate that the
volume is mounted.
If the volume cannot be mounted, enter a
CANCEL command to stop the job.  Separate commands are necessary to
cancel all jobs requiring the volume.

Source
Allocation

Module
IEFAB495

Routing code
3/4,5/6

Descriptor code
2