MPE/iX System Utilities Reference Manual (32650-90908)

Chapter 6
DISCUTIL
Operation
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The remainder of this chapter describes each of the commands. Remember that these commands, though they
may appear similar to MPE/iX commands or the commands used with other utilities, operate only as
described here.
CONFIGURE
The CONFIGURE command is used to dynamically add or configure new/additional devices into the current
configuration. You may access only configured devices with DISCUTIL.
NOTE By default, DISCUTIL configures the system console, a tape drive, and all disks indicated as
being mounted in MPE XL tables. For this reason, you need not use the CONFIGURE command on
any of these devices.
To invoke the CONFIGURE command enter:
discutil>CONFIGURE [LDEV=]ldev
[CLASS=]devclass [PATH=]path
For example:
discutil>CONFIGURE 21 DISC 6/4.0.0
DISMOUNT
Use the DISMOUNT command to logically dismount a volume. This command removes the volume entry
corresponding to the specified ldev from DISCUTIL’s mounted volume table, thus making it inaccessible to
DISCUTIL. After a volume has been logically dismounted, the media or disk pack on the corresponding ldev
can be spun down, new media mounted and spun up, then logically mounted with the MOUNT command.
DISCUTIL will then recognize the new media.
To invoke the DISMOUNT command enter:
discutil>DISMOUNT [LDEV=]ldev
For example:
discutil>DISMOUNT 4
DO
Use the DO command to re-execute a command from the command history stack/queue.
To invoke DO enter:
MOUNT Mounts a disk volume making it accessible to DISCUTIL.
PDEV Lists the disks that are currently configured and mounted.
REDO Modifies and reexecutes a command from the command history stack.
SAVE Saves user-specified files from disks to tape.
SHOWDEV Displays information about each configured device.
TAPE Displays and selects the current tape ldev.
UNCONFIG Unconfigures currently configured devices.