MOUNT: disk or tape mount program

Description

Mounts disks or tapes with full control of label processing, system usage, and mount screen display. An illustration of the options available in the MOUNT subroutine.

Categories

Program Development

Related files

MOUNT: Object file for program.

User Instructions

A demonstration program illustrating some of the options offered by the MOUNT subroutine. These options include a bypass of label processing ("mount for initialize"), full control of the use of work, spool, and paging files, and options for non-standard use of the volume. Mount and dismount screens to the user can also be suppressed.

The first screen prompts for mount options; fill in as appropriate and press (RETURN) to mount or re-mount the volume. Pressing PF(02) at this screen brings up the dismount screen. Note that both screens have the same PRNAME (VOLUME).

Programmer Instructions

Both the mount and dismount screen in the MOUNT utility are GETPARMs and may be run from a program or procedure. Both have the same PRNAME, VOLUME; the second screen shows when PF(02) is keyed from the first.

VOLUME      (mount screen) Press (RETURN) to continue, PF(02)
            to switch to the dismount screen, or PF(16) to
            exit the program.

  DEVICE    (blank)     The device number where the volume is
                        to be mounted.

  VOLUME    (blank)     The name of the volume to be mounted.

  LABEL     SL          The label type.  May be Standard
                        ('SL'), IBM ('IL'), ANSI ('AL'), or
                        non-labelled ('NL').

  USAGE     SH          The usage type.  May be Shared
                        ('SH'), Exclusive ('EX'), Protected
                        ('PR'), or Restricted Removal ('RR').

  VOLTYPE   R           Media type.  May be Removable disk or
                        tape ('R') or Fixed ('F').

  SYSUSE    (blank)     System usage matrix.  Use to allow
                        work, pool, or paging files in any
                        combination.

  BYPASS    NO          Set to YES to bypass label processing.

  NOMSG     NO          Set to YES to bypass mount messages
                        (i.e. volume already mounted).

  NODISP    NO          Set to YES to bypass user MOUNT
                        messages.

  NONSTND   NO          Set to YES to mount for non-standard
                        I/O.

  EXIT      NO          Set to YES to show a return code on
                        error conditions.

VOLUME      Optional; appears if PF(02) is  pressed from the
            first VOLUME screen.  Enter information and press
            (RETURN) to continue, PF(01) to return to MOUNT
            screen, or PF(16) to exit.

  VOLUME    (blank)     Name of volume to be dismounted.

  DEVTYPE   DISK        Set to TAPE if not a disk or diskette.

  NODISP    NO          Set to YES to bypass user DISMOUNT
                        screen.

  EXIT      NO          Set to YES to exit with return codes
                        on error conditions.

Example of use

This program may be used to change the mount restrictions of a volume or to mount or dismount disks and tapes without the usual screen displays to the user. Mount or re-mount operations can be conducted on a volume that is already physically mounted. The non-standard I/O options apply only to non-standard diskette formats and have no practical benefit to most users.

Comments

The return codes are the same as those generated by the MOUNT subroutine. Refer to USERSUB or VSSUB documentation for their meaning.