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10,7/system/mount.hlp
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MOUNT Command
Function
The MOUNT command requests ownership of a device. Because MOUNT
calls for action by the operator, the command is not complete
(the monitor prompt is not printed on your terminal) until the
operator has mounted the device. If more than one volume in the
volume set must be mounted at one time, the system ensures that
the resources will be available. Volumes that must be mounted
sequentially, such as tape volume sets, will be mounted
automatically. Therefore, you use MOUNT only once for each
volume set.
Resources are pre-allocated to a job using the ALLOCATE command.
This informs the system of your future need for a resource. If
you use the MOUNT command without previously using the ALLOCATE
command for the same resource, MOUNT allocates the resource as
well as mounting it. Note, however, that the implicit MOUNT
allocation is cancelled when you use DISMOUNT. An explicitly
allocated resource remains your property until you use DEALLOCATE
to relinquish it.
You can use MOUNT to assign a logical name to a resource. A tape
volume set must always have a logical name. Therefore, if you do
not assign a logical name when you allocate or mount a tape
volume set, the system uses the first six alphanumeric
characters, or up to the first non-alphanumeric character, as the
default logical name.
Format
MOUNT resource:log-name/switch/switch...
Where: resource is one of the following:
o Disk structure or volume set name, such as DSKB:.
o Tape volume set and identifiers, such as
PAY-WK4:(PM34,PM35), where PAY-WK4 is the name of
the volume set, and (PM34,PM35) is a list of the
names of each tape in the volume set.
o A logical name that was previously associated with
a resource.
o A physical device name.
Note that a tape mount request must include a volume
identification. This is accomplished by including the
volume identifier in the resource name, or by using the
/SCRATCH, /VOLID or /REELID switch in the command line.
log-name is the logical name you assign to the device
that you will use. The logical name can be up to 6
alphanumeric characters. The logical name is optional.
Disk volume sets do not require a logical name, but you
can assign one. Tape volume sets must have a logical
name. If you do not assign a logical name to a tape
volume set, the default logical name will be derived
from the volume set name, using the first six
characters, or up to the first non-alphanumeric
character.
If you assigned a logical name to the resource by using the
ALLOCATE command, you can mount the device by typing:
MOUNT log-name/switch/switch...
Any switches that you specified in a previous ALLOCATE command,
using the same resource name, become effective when you MOUNT the
resource. However, you cannot specify any switches with MOUNT to
change the switches you specified in the ALLOCATE command. Also,
you cannot specify any further switches with the MOUNT command,
except for non-status-setting switches such as /REMARK. This is
because defaults are assumed when the request is ALLOCATEd.
NOTE
To MOUNT more than one device at a time, separate
the volume set identifications with a comma (,).
You can obtain a list of all the requests in the mount queue by
typing MOUNT with no arguments or switches.
The following is a list of the switches you can use with MOUNT.
Some switches apply to both tape and disk volume sets, other
switches apply to one or the other. The center column indicates
the kind of volume set the switch applies to.
Switch Device Function
/ACTIVE Disk Requests that the volume set be placed
in your job's active search list. (See
the SETSRC program description in the
TOPS-10 User Utilities Manual.) The
structure will become part of the list
that the system automatically uses to
search for a file. This is the default
function. This switch is the complement
to /PASSIVE.
/CHECK Tape Prints on your terminal a list of the
Disk mount requests made by your job.
/CREATE Disk Allows files to be created on the
structure. This switch is the
complement /NOCREATE. This switch
implies the /ACTIVE switch.
/DENSITY:n-BPI Tape Specifies the recording density
(bits-per-inch) of the volume set. The
argument (n) can be: 200, 556, 800,
1600, or 6250. The -BPI portion of the
value is optional.
/DISK Disk Identifies the volume set as a disk
volume set.
/EXCLUSIVE Disk Ensures that you will have exclusive
access to the volume set. No other
users will be allowed to access the
resource. You must have the same
project number as the owner of the
volume set.
/HELP Tape Prints a brief description of the
Disk MOUNT command.
/LABEL-TYPE: Tape Specifies the kind of label processing
arg to be used and indicates the label
status of the tape. The label type is
used to ensure that the correct tape has
been mounted. The arguments and their
meanings are:
ANSI The label is formatted
according to ANSI standards.
BLP The tape may or may not have
BYPASS labels, but it is treated as
if it were unlabeled. This
argument can only be used by
privileged users.
EBCDIC The label is formatted
IBM in EBCDIC
NOLABELS The tape does not have a
NONE standard label. You will not
UNLABELED be informed when the
end-of-tape is reached.
USER-EOT The tape does not have
standard labels. However, it
may have user labels. When
the end-of-tape is reached,
the user is notified. This is
useful for programs such as
BACKUP.
/NEW-VOLUME-SET Tape Specifies that a new volume set is going
to be created. The operator will choose
a new tape or tapes for you. This
switch implies /WRITE-ENABLE.
/NOCREATE Disk Prevents the creation of files on this
volume set unless you specify the volume
set when you write the files. This
switch is the complement to /CREATE and
it implies /ACTIVE.
/NONOTIFY Tape Does not notify you when your request is
Disk finished. This is the default function.
/NOTIFY Tape Sets the system to inform you when the
Disk resource is mounted or dismounted. The
system sends a message to your terminal
when any of the following occurs:
o The resource is physically mounted.
o The resource is dismounted by the
operator without a request by your
job.
o Another volume in a tape volume set
is mounted.
o The disk structure is locked or
unlocked by the operator.
/NOWAIT Tape Allows you to continue working on the
Disk system before the resource is mounted.
This switch implies /NOTIFY and it is
the complement to /WAIT.
/PASSIVE Disk Requests that the structure be placed in
your job's passive search list. (See
the SETSRC program description in the
TOPS-10 User Utilities Manual.) The
system will not search for files on this
structure unless you specify the
structure name in the file
specification. This switch is the
complement to /ACTIVE.
/QUOTA Disk Recomputes the usage quota on the
specified structure.
/READ-ONLY Tape Specifies that you will not write on the
Disk volume set. Tape volume sets will be
checked as they are mounted, to ensure
that they are not write-enabled. This
is the default for tape volume sets.
On disk volume sets, the monitor will
not update access dates. If you specify
/EXCLUSIVE and /READ-ONLY, the operator
may write-protect the volume set.
This switch supersedes /RONLY, /WLOCK,
and /WRITE:NO.
/REMARK:"text" Tape Allows you to send a message to the
Disk operator identifying the volume to be
mounted. The argument (text) can be up
to 50 characters long. Use quotation
marks if the text contains spaces or
punctuation.
/SCRATCH Tape Instructs the operator to mount a
scratch tape. The operator will select
a tape that is blank, with the intention
of keeping the tape when you are
finished with it. This switch implies
/WRITE-ENABLE.
/SHARABLE Disk Allows other users to access the
resource. This is the default function.
This switch is the complement to
/EXCLUSIVE.
/TAPE Tape Specifies that the volume set is a tape
volume set. This switch is required
when the volume set has the same name as
a cataloged disk volume set.
/TRACKS:n Tape Specifies the number of tracks on the
tape. The value of n can be 7 or 9.
/USER:[ppn] Tape Prints on your terminal a list of all
Disk requests for a particular user.
/VOLID:volid Tape Identifies the volumes in a tape volume
set. This switch can be used only if
the volid-list was not specified
previously. If the volume set is
comprised of more than one volume, the
volids should be separated by commas,
and the volid-list should be enclosed in
parentheses. This switch supersedes
/REELID.
/WAIT Tape Ensures that the volume set will be
Disk mounted before you continue working on
the system. This is the default
function. This switch is the complement
to /NOWAIT.
/WRITE-ENABLE Tape Ensures that you can write on the
Disk volume set. For tape, the monitor
checks each volume as it is mounted, to
be sure that it is write-enabled. This
is the default function for disk volume
sets.
Associated Commands
ALLOCATE Informs the system of your future need for a
resource.
DISMOUNT Removes the specified volume set from your job
search list. If no other users are accessing
the resource, and it is not a system structure,
the volume set will be dismounted from the unit.
DEALLOCATE Removes the resource from your job's list of
allocated resources.
SHOW ALLOCATION Prints a list of the resources allocated and
mounted for your job.
SHOW QUEUE Prints a list of the jobs in the system queues.
Characteristics
Runs the QUEUE program.
Destroys your core image.
Requires LOGIN.
Example
The following example shows the use of the ALLOCATE, DEALLOCATE,
MOUNT, DISMOUNT, and SHOW ALLOCATION commands. The resources are
reserved for a multivolume tape volume set with the ALLOCATE
command. The name of the volume set is TAPE-SET, and it contains
three volumes. The logical name TS is assigned to the tape set.
The tape is write enabled, and it does not have standard labels.
.ALLOCATE
TAPE-SET(VOL1,VOL2,VOL3):TS/WRITE-ENABLE/LABEL:NONE<RET>
[ALLOCATE REQUEST TS QUEUED, REQUESTS #672]
A file structure named DSKR: is mounted for the job:
.MOUNT DSKR:<RET>
[MOUNT REQUEST DSKR QUEUED, REQUEST #673]
[STRUCTURE DSKR MOUNTED]
The job's resources are shown using the SHOW ALLOCATION command:
ALLOCATION FOR JOB 59 MARY MAROTTA [27,5434]
VOLUME SET RESOURCES TYPE ALL OWN
--------------------- ----------------- ------------ --- ---
--- 9 TK 800/1600 MAGTAPE UNIT 1 0
--- RP06 DISK UNIT 2 2
--- RP20 DISK UNIT 1 1
DSKB DSKB STRUCTURE 1 1
DSKC DSKC STRUCTURE 1 1
DSKR DSKR STRUCTURE 1 1
TAPE-SET VOL1 MAGTAPE VOL. 1 0
TAPE-SET VOL2 MAGTAPE VOL. 1 0
TAPE-SET VOL3 MAGTAPE VOL. 1 0
The tape set is mounted, and the resources are again displayed:
.MOUNT TS<RET>
[MOUNT REQUEST TS QUEUED, REQUEST #673]
[MAGTAPE TS MOUNTED]
.SHOW ALLOCATION<RET>
ALLOCATION FOR JOB 59 MARY MAROTTA [27,5434]
VOLUME SET RESOURCES TYPE ALL OWN
--------------------- ----------------- ------------ --- ---
--- 9TK 800/1600 MAGTAPE UNIT 1 1
--- RP06 DISK UNIT 2 2
--- RP20 DISK UNIT 1 1
DSKB DSKB STRUCTURE 1 1
DSKC DSKC STRUCTURE 1 1
DSKR DSKR STRUCTURE 1 1
TAPE-SET VOL1 MAGTAPE VOL. 1 1
TAPE-SET VOL2 MAGTAPE VOL. 1 0
TAPE-SET VOL3 MAGTAPE VOL. 1 0
After work is finished by accessing the tape set and the
structure, the structure is dismounted. Because the structure
was not explicitly allocated, it is automatically deallocated.
.DISMOUNT DSKR<RET>
[STRUCTURE DSKR DISMOUNTED]
The tape volume set is dismounted:
.DISMOUNT TS<RET>
[VOLUME SET TS DISMOUNTED]
The job's resources are displayed:
.SHOW ALLOCATION<RET>
ALLOCATION FOR JOB 59 MARY MAROTTA [27,5434]
VOLUME SET RESOURCES TYPE ALL OWN
--------------------- ----------------- ------------ --- ---
--- 9 TK 800/1600 MAGTAPE UNIT 1 0
--- RP06 DISK UNIT 1 1
--- RP20 DISK UNIT 1 1
DSKB DSKB STRUCTURE 1 1
DSKC DSKC STRUCTURE 1 1
TAPE-SET VOL1 MAGTAPE VOL. 1 0
TAPE-SET VOL2 MAGTAPE VOL. 1 0
TAPE-SET VOL3 MAGTAPE VOL. 1 0
At this point, the tape set can again be mounted, or it can be
dismounted and released from your job. The tape set is
deallocated:
.DEALLOCATED TS<RET>
[VOLUME SET TS HAS BEEN DEALLOCATED]
.SHOW ALLOCATION<RET>
ALLOCATION FOR JOB 59 MARY MAROTTA [27,5434]
VOLUME SET RESOURCES TYPE ALL OWN
--------------------- ----------------- ------------ --- ---
--- RP06 DISK UNIT 1 1
--- RP20 DISK UNIT 1 1
DSKB DSKB STRUCTURE 1 1
DSKC DSKC STRUCTURE 1 1
.