Technical data

Managing Storage Media
9.5 Mounting Volumes
The following sections explain how to perform these tasks:
Task Section
Use MOUNT command qualifiers when you mount disks Section 9.5.1
Use MOUNT command qualifiers when you mount tapes Section 9.5.2
Assist users with mounting Section 9.5.3
Mount a volume with a protected subsystem Section 9.5.4
Convert an existing volume from one ODS format to another Section 9.5.5
Modify disk volume characteristics Section 9.5.6
9.5.1 Using MOUNT Command Qualifiers When You Mount Disks
Table 9–13 lists MOUNT command qualifiers you can use to mount disks. The
OpenVMS System Management Utilities Reference Manual has more information
about each qualifier.
Table 9–13 MOUNT Command Qualifiers for Mounting Disks
Qualifier Description
/ACCESSED=n Requires OPER privilege; specifies the approximate number of directories
that will be in use concurrently on the volume. (This qualifier is obsolete for
ODS-2.) For example, on a large 500 megabyte (MB) disk you might select a
value of 40, but on a small disk you might specify the following value:
$ MOUNT/ACCESSED=2 DUA3:
/ASSIST Directs the mount operation to allow operator or user intervention if the
mount request fails. The /ASSIST qualifier is the default except during system
startup. Encourage users to take advantage of this feature, which repeatedly
alerts the operator of a mount request until the request is satisfied.
To disable operator-assisted mounts, enter a command similar to the following:
$ MOUNT/SYSTEM/NOASSIST DUA1: SALES_98
/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. For example:
$ MOUNT/SYSTEM/BIND=CLIENTS DUA0:,DUA1: EUROPE,ASIA
See Section 9.6.1.2 for details.
/CACHE=keyword Controls whether caching limits established at system generation are disabled
or overridden. For example:
$ MOUNT/CACHE=(EXTENT=60,FILE_ID=60,QUOTA=20) -
_$ DMA0: FILES WORK
%MOUNT-I-MOUNTED, FILES mounted on _NODE$DMA0:
This command mounts a device labeled FILES and assigns the logical name
WORK. The /CACHE qualifier enables an extent cache of 60 entries, a file
identification cache of 60 entries, and a quota cache of 20 entries.
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