HELP MOUNT — VMS 5.0
Invokes the VMS Mount Utility (MOUNT) to make a disk or magnetic
tape volume available for processing. For a complete description
of the VMS Mount Utility, including information about the MOUNT
command and its qualifiers, see the VMS Mount Utility Manual.
Format:
MOUNT device-name[:][,...] [volume-label[,...]] [logical-name[:]]
Additional information available:
ParametersCommand QualifiersExamples
Parameters
device-name[:][,...]
Specifies the physical device name or logical name of the device on
which the volume is to be mounted. On a system where volumes are not
connected to Hierarchical Storage Controllers (HSCs), use the
following format:
ddcu:
The dd describes the device type of the physical devices used. For
example, an RA60 disk drive is device type DJ, and an RA80 or RA81
disk drive is device type <EMPHASIS>(DU\BOLD). The c identifies the
controller, and the u identifies the unit number of the device.
On a system with Hierarchical Storage Controllers (HSCs), use one of
the following formats:
node$ddcu:
allocation-class$ddcu:
If your devices are dual ported to HSCs, use the allocation-class
format. For example, $125$DUA23 represents an RA80 or RA81 disk with
unit number 23. The disk's allocation class is $125$. The c part of
the format is always A for HSC disks. TROLL$DJA12 represents an RA60
disk with unit number 12. The device is connected to an HSC named
TROLL.
Device names can be generic so that if no controller or unit number
is specified, the system attempts to mount the first available
device that satisfies those specified components of the device
name(s). If no volume is physically mounted on the specified device,
MOUNT displays a message requesting that you place the volume in the
device; after you place the volume in the named drive, MOUNT then
completes the operation.
If you specify more than one device name for a disk or tape volume
set, separate the device names with either commas or plus signs.
For a tape volume set, you can specify more volume labels than
device names or more device names than volumes.
volume-label[,...]
Specifies the label on the volume. For disk volumes, labels can
have from 1 through 12 characters; for tape volumes, labels can have
from 0 through 6 characters.
If you specify more than one volume label, separate the labels with
either commas or plus signs. The volumes must be in the same volume
set and the labels must be specified in ascending order according to
relative volume number.
When you mount a tape volume set, the number of volume labels need
not equal the number of device names specified. When a tape reaches
end-of-tape, the system requests the operator to mount the next
volume on one of the devices. The user is not informed of this
request.
When you mount a disk volume set, each volume label specified in the
list must correspond to a device name in the same position in the
device name list.
The volume-label parameter is not required when you mount a volume
with the /FOREIGN or /NOLABEL qualifier or when you specify
/OVERRIDE=IDENTIFICATION. To specify a logical name when you enter
either of these qualifiers, type any alphanumeric characters in the
volume-label parameter position.
logical-name[[:]]
Defines a 1- through 255-alphanumeric character string logical name
to be associated with the device.
If you do not specify a logical name, the MOUNT command assigns the
default logical name DISK$volume-label to individual disk drives; it
assigns the default logical name DISK$volume-set-name to the device
on which the root volume of a disk volume set is mounted.
Note that if you specify a logical name in the mount request that
is different from DISK$volume-label or DISK$volume-set-name, then
two logical names are associated with the device.
If you do not specify a logical name for a magnetic tape drive, the
MOUNT command assigns only one logical name, TAPE$volume-label, to
the first magnetic tape device in the list. No default logical
volume set name is assigned in this case.
The MOUNT command places the name in the process logical name table,
unless you specify /GROUP or /SYSTEM. In the latter cases, it
places the logical names in the group or system logical name table.
NOTE
Avoid assigning a logical name that matches the file
name of an executable image in SYS$SYSTEM. Such an
assignment prohibits you from invoking that image
Command Qualifiers
Additional information available:
/ACCESSED/ASSIST/AUTOMATIC/BIND/BLOCKSIZE
/CACHE/CLUSTER/COMMENT/CONFIRM/COPY/DATA_CHECK
/DENSITY/EXTENSION/FOREIGN/GROUP/HDR3/INITIALIZE
/LABEL/MESSAGE/MOUNT_VERIFICATION/MULTI_VOLUME
/OVERRIDE/OWNER_UIC/PROCESSOR/PROTECTION
/QUOTA/REBUILD/RECORDSIZE/SHADOW/SHARE/SYSTEM
/UNLOAD/WINDOWS/WRITE
/ACCESSED
/ACCESSED=n Requires the user privilege OPER. Specifies, for disk volumes, the approximate number of directories that will be in use concurrently on the volume. You can specify a value from 0 through 255 to override the default specified when the volume was initialized.
/ASSIST
/ASSIST (default) /NOASSIST Directs the mount operation to allow operator or user intervention if the MOUNT request fails. Any operator reply to a MOUNT request is written to SYS$OUTPUT to be displayed on the user's terminal or written in a batch job log. If no operator terminal is enabled to receive and respond to a mount assist request, a message is displayed informing the user of the situation. See the VMS System Messages and Recovery Procedures Manual for a description of the error messages and their appropriate responses.
/AUTOMATIC
/AUTOMATIC (default) /NOAUTOMATIC Determines whether MOUNT enables or disables automatic volume switching and labeling for magnetic tape. If you have multiple magnetic tape drives allocated to a volume set, the Magnetic Tape Ancillary Control Process (MTAACP) performs the volume switch by sequentially selecting the next available drive allocated to the volume set. The MTAACP expects the next reel of the volume set to be loaded on that drive.
/BIND
/BIND=volume-set-name Creates a volume set of one or more disk volumes or adds one or more volumes to an existing volume set. The volume-set-name specifies a 1- through 12-alphanumeric-character name identifying the volume set. When you add a volume or volumes to a volume set, the first volume label specified must be that of the root volume, or the root volume must already be on line.
/BLOCKSIZE
/BLOCKSIZE=n
Specifies, for magnetic tape volumes, the default block size.
Valid values are in the range 20 through 65,532 for VMS RMS
operations and 18 through 65,534 for non-VMS RMS operations. By
default, records are written to tape volumes in 2048-byte blocks.
For foreign or unlabeled tapes, the default is 512 bytes.
You must specify /BLOCKSIZE in two situations:
o When mounting tapes that do not have HDR2 labels.
o When mounting tapes that contain blocks whose size exceeds the
default block size (2048 bytes).
/CACHE
/CACHE=(option[,...])
/NOCACHE
Requires the operator user privilege (OPER) and you must specify n,
for the number of entries when you use the EXTENT, FILE_ID, and
QUOTA options. See descriptions below.
For disks, controls whether caching limits established at system
generation time are disabled or overridden. With the TAPE_DATA
option, enables or disables the write cache for the tape controller
specified.
These are the options:
[NO]EXTENT[=n] Enables or disables extent caching. If you
enable extent caching, you must have the
operator user privilege (OPER) and you must
specify n, the number of entries in the extent
cache. Note that NOEXTENT is equivalent to
EXTENT=0; both disable extent caching.
[NO]FILE_ID[=n] Enables or disables file identification caching.
To enable file identification caching, you must
have the operator user privilege (OPER) and you
must specify n, the number of entries, as a
value greater than 1. Note that NOFILE_ID is
equivalent to FILE_ID=1; both disable file
identification caching.
LIMIT=n Specifies the maximum amount of free space in
the extent cache in one-thousandths of the
currently available free space on the disk.
[NO]QUOTA[=n] Enables or disables quota caching. If you
enable quota caching, you must have the operator
user privilege (OPER) and you must specify n,
the number of entries in the quota cache.
Normally n is set to the maximum number of
active users expected for a disk with quotas
enabled. Both NOQUOTA and QUOTA=0 disable quota
file caching.
TAPE_DATA Enables the write cache for a tape device if the
tape controller supports a write cache.
/NOCACHE is the default for mounting tape
devices. You must specify TAPE_DATA to enable
the write cache. If the tape controller does
not support a write cache, the option is
ignored.
WRITETHROUGH Disables writeback caching, which writes only
the file headers of files open for write when
the files are closed. Thus, if you specify the
WRITETHROUGH option, file headers are written to
the disk on every file header operation.
If you specify more than one option, separate them by commas and
enclose the list in parentheses. The options [NO]EXTENT,
[NO]FILE_ID, LIMIT, and [NO]QUOTA apply only to a disk device. The
option TAPE_DATA applies only to a tape device.
If you specify /NOCACHE for a disk device, all caching is disabled
for this volume. Note that the /NOCACHE qualifier is equivalent to
/CACHE=(NOEXTENT,NOFILE_ID,NOQUOTA,WRITETHROUGH).
If you specify /NOCACHE for a tape device, the tape controller's
write cache is disabled for this volume. This is the default for
the TAPE_DATA option.
/CLUSTER
/CLUSTER Requires the user privileges GRPNAM and SYSNAM. Specifies that after the volume is successfully mounted on the local node, or if it is already mounted /SYSTEM on the local node, it is to be mounted on every other node in the existing VAXcluster (that is, the volume is mounted clusterwide). If the system is not a member of a VAXcluster, the /CLUSTER qualifier has no effect. Only system or group volumes can be mounted clusterwide. If you specify the /CLUSTER qualifier with neither the /SYSTEM nor the /GROUP qualifier, the default is /SYSTEM.
/COMMENT
/COMMENT="string" Specifies additional information to be included with the operator request when the MOUNT operation requires operator assistance. The text string is output to the operator log file and the current SYS$OUTPUT device. The string must contain no more than 78 characters.
/CONFIRM
/CONFIRM
/NOCONFIRM (default)
Applicable only if you have the volume shadowing option. See the
VMS Volume Shadowing Manual.
Controls whether MOUNT issues a request to confirm a full copy
operation when mounting a shadow set. Use /CONFIRM to display the
volume label and volume owner for any specified physical device
that is a target for a full copy operation. MOUNT stops before any
full copy operations occur and issues the following prompt:
Allow FULL shadow copy on the above member(s)? [N] :
If you respond with YES, the mount operation continues automatically
with full copy operations allowed. If you respond with NO,
<RETURN>, or <CTRL/Z> the command quits without mounting any of the
specified volumes, including those that did not require copy
operations. If you type a response other than these, the prompt is
reissued.
/CONFIRM is similar to /NOCOPY. Use /CONFIRM to mount shadow sets
interactively; use /NOCOPY in the site-specific startup command
procedure SYS$MANAGER:SYSTARTUP.COM.
/COPY
/COPY (default) /NOCOPY Applicable only if you have the volume shadowing option. See the VMS Volume Shadowing Manual. Instructs MOUNT to perform copy operations on shadow set members. You can mount shadow sets with /NOCOPY to test if proposed shadow set members are targets of full copy operations. If any of the specified volumes are targets of copy operations the command quits without mounting any of the specified volumes, including those that did not require copy operations. /NOCOPY is similar to /CONFIRM. Use /NOCOPY to mount shadow sets in the site-specific startup command procedure SYS$MANAGER:SYSTARTUP; use /CONFIRM for interactive mounting.
/DATA_CHECK
/DATA_CHECK[=(option[,...])] Overrides the read-check or write-check option (or both) specified for a volume when it was initialized. You can specify either or both of the following options: READ Performs checks following all read operations WRITE Performs checks following all write operations If you specify /DATA_CHECK without specifying an option, the system defaults to /DATA_CHECK=WRITE.
/DENSITY
/DENSITY=n Specifies, for foreign or unlabeled tapes, the density (in bpi) at which the tape is to be written. You can specify 800, 1600, or 6250, if supported by the tape drive. If you do not specify a density for a tape that was previously written, the density defaults to that of the first record on the volume.
/EXTENSION
/EXTENSION=n Specifies, for disk files, the number of blocks by which files are to be extended on the volume unless otherwise specified by an individual command or program request. You can specify a value from 0 through 65535 to override the value specified when the volume was initialized.
/FOREIGN
/FOREIGN Requires the user privilege (VOLPRO), or your UIC must match the UIC on the volume, if you mount a volume currently in Files-11 format with the /FOREIGN qualifier. Indicates that the volume is not in the standard format used by the VMS operating system; that is, a tape volume is not in the standard ANSI format, or a disk volume is not in Files-11 format.
/GROUP
/GROUP Requires the user privilege to place a name in the group logical name table (GRPNAM). Makes the volume available to other users with the same group number in their user identification codes (UICs) as the user entering the MOUNT command. The logical name for the device is placed in the group logical name table.
/HDR3
/HDR3 (default) /NOHDR3 Controls whether VMS file header labels are written on magnetic tapes. You can specify /NOHDR3 to write tapes that are to be used on other systems that do not process VMS file header labels correctly.
/INITIALIZE
/INITIALIZE=CONTINUATION Specifies that any volume added to the magnetic tape volume set is initialized before you can write to the volume.
/LABEL
/LABEL (default) /NOLABEL Indicates, for tape volumes, whether the tape contains VMS ANSI labels. Note that /NOLABEL is equivalent to /FOREIGN.
/MESSAGE
/MESSAGE (default) /NOMESSAGE Causes request messages to be sent to your current SYS$OUTPUT device. If you specify /NOMESSAGE during an operator-assisted mount, messages are not output to SYS$OUTPUT; however, the operator sees them.
/MOUNT_VERIFICATION
/MOUNT_VERIFICATION (default) /NOMOUNT_VERIFICATION Controls whether the device is a candidate for mount verification. This qualifier affects disk and magnetic tape volumes.
/MULTI_VOLUME
/MULTI_VOLUME /NOMULTI_VOLUME (default) Requires the user privilege VOLPRO or ownership of the volume. Specifies that MOUNT access checks not be performed on each member of a multiple-volume, foreign or unlabeled magnetic tape set. Use this qualifier when a utility that supports multiple-volume foreign-mounted magnetic tape sets needs to process subsequent volumes, without requiring the checks (device allocation, label, and volume accessibility) normally performed by MOUNT. You must specify the /FOREIGN qualifier with the /MULTI_VOLUME qualifier. To use this qualifier you must have the user privilege VOLPRO or own the volume.
/OVERRIDE
/OVERRIDE=(option[,...])
Requires the user privileges OPER and VOLPRO to specify
/OVERRIDE=(ACCESSIBILITY, EXPIRATION) along with the /FOREIGN
qualifier; otherwise, the tape will not be read. Requires the user
privilege VOLPRO or ownership of the volume, To use the
ACCESSIBILITY, EXPIRATION and LOCK options.
Allows you to override one or more protection checks that the MOUNT
command performs. The options are as follows:
ACCESSIBILITY For magnetic tapes only. If the installation
allows, this option overrides any character in
the Accessibility Field of the volume. The
necessity of this option is defined by the
installation. That is, each installation has
the option of specifying a routine that the
magnetic tape file system will use to process
this field. By default, VMS provides a routine
that checks this field in the following manner:
o If the magnetic tape was created on a version
of VMS that conforms to Version 3 of ANSI,
then this option must be used to override
any character other than an ASCII space.
o If a VMS protection is specified and the
magnetic tape conforms to an ANSI standard
that is higher than Version 3, then this
option must be used to override any character
other than an ASCII 1.
EXPIRATION For magnetic tapes only. Allows you to write to
a tape that has not yet reached its expiration
date.
IDENTIFICATION Allows you to mount a volume when you do not
know what the volume label is. If you specify
/OVERRIDE=IDENTIFICATION, you can specify
anything for the volume-label parameter or you
can omit it; the MOUNT command ignores whatever
you enter. The volume must be mounted /NOSHARE
(either explicitly or by default).
LOCK Directs MOUNT not to write-lock the volume as a
consequence of certain errors encountered while
mounting it. Use this option when you are
mounting a damaged volume to be repaired using
the Verify Utility.
OWNER_IDENTIFIER Allows you to override the processing of the
Owner Identifier field of the volume label.
SETID For tapes that do not conform to ANSI standards.
Allows you to inhibit checks of the file set
identifier when you switch reels in a
multivolume tape set.
SHADOW_MEMBERSHIP Applicable only if you have the volume shadowing
option. See the VAX Volume Shadowing Manual.
Allows you to override the write protection of
former shadow set members. When you mount a
volume with this qualifier, the volume shadowing
generation number is erased. If you attempt to
remount the volume in a shadow set, the volume
is considered an unrelated volume and receives a
full copy operation.
If you specify more than one option, separate them with commas and
enclose the list in parentheses.
/OWNER_UIC
/OWNER_UIC=uic Requires the user privilege (VOLPRO) or ownership of the volume to use this qualifier for a Files-11 volume. Requests that the specified user identification code be assigned ownership of the volume while it is mounted, overriding the ownership recorded on the volume. Or, if you are mounting a volume using the /FOREIGN qualifier, requests an owner UIC other than your current UIC. Specify the UIC using standard UIC format as described in the UIC protection section of the of the VMS DCL Concepts Manual.
/PROCESSOR
/PROCESSOR=option
Requires the operator user privilege (OPER). Requires CMKRNL and
OPER privilege for the file-spec option
For magnetic tapes and Files-11 Structure Level 1 disks, requests
that the MOUNT command associate an ACP to process the volume. The
/PROCESSOR qualifier causes MOUNT to override the default manner in
which ACP's are associated with devices.
For Files-11 Structure Level 2 disks, controls block cache
allocation.
UNIQUE For magnetic tape and Files-11 Structure Level 1
disks, creates a new process to execute a copy
of the default ACP image for the specified
device type or controller.
For Files-11 Structure Level 2 disks, allocates
a separate block cache.
SAME:device For magnetic tape and Files-11 Structure Level 1
disks, uses the same ACP process currently being
used by the device specified.
For Files-11 Structure Level 2 disks, takes the
block cache allocation from the specified
device.
file-spec Creates a new process to execute the ACP image
specified by the file-spec (for example, a
modified or a user-written ACP). You cannot use
wildcard characters, or node and directory names
in the file specification.
This option requires CMKRNL and OPER privilege.
/PROTECTION
/PROTECTION=code Requires the user privilege (VOLPRO) or volume ownership for FILES-11 volumes. Specifies the protection code to be assigned to the volume. Specify the code according to the standard syntax rules for specifying protection. If you omit a protection category, that category of user is denied all access. If you do not specify a protection code, the default is the protection that was assigned to the volume when it was initialized. If you specify /PROTECTION for magnetic tape, the protection applies only to continuation volumes added to the volume set and that protection is written to a VMS specific volume label on the magnetic tape.
/QUOTA
/QUOTA (default) /NOQUOTA Requires the user privilege VOLPRO or volume ownership. Controls whether or not disk quotas are to be enforced on this disk volume. The /NOQUOTA qualifier inhibits this checking.
/REBUILD
/REBUILD (default) /NOREBUILD Controls whether or not MOUNT performs a rebuild operation on a disk volume. If a disk volume is improperly dismounted (such as during a system failure), you must rebuild it to recover any caching limits that were enabled on the volume at the time of the dismount. By default, MOUNT attempts the rebuild. For a successful rebuild operation that includes reclaiming all the available free space, you must mount all of the volumes set members. The rebuild may consume a considerable amount of time, depending on the number of files on the volume and, if quotas are in use, on the number of different file owners. If you use the /NOREBUILD qualifier, devices can be returned to active use immediately. You can then perform the rebuild later with the DCL command SET VOLUME/REBUILD (see the VMS DCL Dictionary).
/RECORDSIZE
/RECORDSIZE=n Specifies, for tape volumes, the number of characters in each record. You typically use this qualifier with the /FOREIGN and /BLOCKSIZE qualifiers to read or write fixed-length records on a block-structured device. In this case, the record size must be less than or equal to the block size specified or used by default The block size may be in the range 20 through 65,532 bytes if you are using VMS RMS, or 18 through 65,534 bytes if you are not using VMS RMS.
/SHADOW
/SHADOW=(physical-device-name[:][,...]) Parameter qualifier. Applicable only if you have the volume shadowing option. See the VAX Volume Shadowing Manual. Indicates that you are mounting a shadow set including the physical devices and the virtual unit that represents them to the system. This qualifier instructs MOUNT to expect a virtual-unit-name as the device-name parameter. Place the /SHADOW qualifier after the virtual- unit-name parameter. When mounting foreign shadow sets you must list the copy-type-specifier and an equals sign before each physical device name listed. The copy types are NO_COPY, MERGE_COPY and FULL_COPY.
/SHARE
/SHARE /NOSHARE (default) Indicates, for a disk volume, whether the volume is shareable. If the volume has already been mounted shareable by another user, and you request that it be mounted with the /SHARE qualifier, any other qualifiers you enter are ignored. If you previously allocated the device and specify the /SHARE qualifier, the MOUNT command deallocates the device so that other users can access it.
/SYSTEM
/SYSTEM Requires the user privilege to place a name in the system logical name table (SYSNAM). Makes the volume public, that is, available to all users of the system, as long as the UIC-based volume protection allows them access. The logical name for the device is placed in the system logical name table.
/UNLOAD
/UNLOAD (default) /NOUNLOAD Controls whether or not the disk or tape volume specified in the mount command are unloaded when they are dismounted.
/WINDOWS
/WINDOWS=n Requires the operator user privilege (OPER). Specifies the number of mapping pointers to be allocated for file windows. When a file is opened, the file system uses the mapping pointers to access data in the file. You can specify a value from 7 through 80 to override the default value specified when the volume was initialized.
/WRITE
/WRITE (default) /NOWRITE Controls whether the volume can be written. You can specify /NOWRITE to provide read-only access to protect files. This is equivalent to writelocking the device.
Examples
1. $ MOUNT MT: -
$_MATH06 STAT_TAPE
%MOUNT-I-MOUNTED, MATH06 mounted on _MTA0:
$ COPY ST061178.DAT STAT_TAPE:
This MOUNT command requests the magnetic tape whose volume label is
MATH06 to be mounted on the device MTA0 and assigns the logical name
STAT_TAPE to the volume.
Subsequently the COPY command copies the disk file ST061178.DAT to
the tape.
2. $ ALLOCATE DM:
_DMB2: ALLOCATED
$ MOUNT DMB2: TEST_FILES
%MOUNT-I-MOUNTED, TEST_FILES mounted on _DMB2:
This ALLOCATE command requests an available RK06/RK07 device. After
noting the device name in the response from the ALLOCATE command,
the physical volume can be placed on the device. Then, the MOUNT
command mounts the volume.
3. $ MOUNT/SYSTEM/BIND=MASTER_PAY -
$_DB1,DB2,DB3 PAYVOL1,PAYVOL2,PAYVOL3
This MOUNT command creates the volume set named MASTER_PAY
consisting of the initialized volumes labeled PAYVOL1, PAYVOL2, and
PAYVOL3. These volumes are currently mounted physically on the
devices named DB1, DB2, and DB3, respectively. The volume PAYVOL1 is
the root volume of the set.
The volumes are mounted as system volumes to make them available to
all users.
4. $ MOUNT/NOAUTOMATIC MTA0: ABCD,EFGH
The /NOAUTOMATIC qualifier instructs MOUNT not to generate its own
label for the second volume, but to use the ones that are supplied
with the MOUNT command. If the second volume is not already
labeled, then the operator must use REPLY/INIT and supply the second
label.
5. $ MOUNT/SHARE $2$DUS2: /SHADOW=($2$DUA1:,$2$DUA2:) SHADOWVOL1
The example mounts a shadow set consisting of virtual unit $2$DUS2,
and shadow set members $2$DUA1 and $2$DUA2. The /SHARE
qualifier is included here to show placement of other valid MOUNT
qualifiers; it is not required. This example is applicable only if
you have the volume shadowing option.
6. $ MOUNT/INITIALIZE=CONTINUATION MTA0: ABCD
The /INITIALIZE=CONTINUATION qualifier instructs the MOUNT command
to assign its own continuation label. In this case, the operator
can issue the command REPLY/TO=n, and the system assigns a label
derived from the original. It uses the label that was specified in
the MOUNT command and adds the appropriate number (ABCD02, ABCD03,
etc.).
7. $ MOUNT/GROUP DB1:, DB2:, DB3: -
$_PAYVOL1,PAYVOL2,PAYVOL3 PAY
The MOUNT command mounts and makes available on a group basis the
volume set consisting of volumes labeled PAYVOL1, PAYVOL2, and
PAYVOL3. The logical name PAY is assigned to the set; all users
wishing to access files on these volumes can refer to the set as
PAY:.
8. $ MOUNT/GROUP/BIND=MASTER_PAY -
$_DB4: PAYVOL4
This MOUNT command adds the volume labeled PAYVOL4 to the existing
volume set MASTER_PAY. The root volume for the volume set must be
on line when this command is issued.
9. $ MOUNT DYA1: TESTSYS/COMMENT="Volume in cabinet 6."
%MOUNT-I-OPRQST, Please mount volume TESTSYS in device _DYA1:
Volume in cabinet 6.
%MOUNT-I-MOUNTED TESTSYS mounted on _DYA1:
%MOUNT-I-OPRQSTDON, operator request cancelled - mount
completed successfully
This MOUNT command requests the operator to mount the disk volume
TESTSYS on the device DYA1. Notice that the /COMMENT qualifier is
used to inform the operator of the location of the volume. The
operator placed the volume in DYA1 and lets MOUNT retry the mount.
Once the mount completes, the operator request is cancelled.