HP-UX Reference (11i v2 03/08) - 1M System Administration Commands A-M (vol 3)

m
mount_vxfs(1M) mount_vxfs(1M)
-v Reports the regular output with file system type and flags, however, directory and special
fields are reversed.
-V Echos the completed command line, but does not execute the command. The command line
is generated by incorporating the user-specified options and other information derived from
/etc/fstab. This option allows the user to verify the command line.
umount recognizes the following options:
-a Attempt to unmount all file systems described in
/etc/mnttab. All optional fields in
/etc/mnttab must be included and supported. If -F vxfs
is specified, all VxFS file
systems in
/etc/mnttab are unmounted. File systems are not necessarily unmounted in
the order listed in /etc/mnttab.
-F vxfs
Specify the file system type (vxfs
).
-v Verbose mode. Write a message to the standard output indicating which file system is being
unmounted.
-V Echo the completed command line, but do not execute the command. The command line is
generated by incorporating the user-specified options and other information derived from
/etc/fstab. This option allows the user to verify the command line.
Operands
mount recognizes the following operands:
special Name of a VxFS block special device, a removable file system.
mount_point
Name of an existing directory from which the mounted file system is available.
Specific -o Options
mount supports a set of options specific to the VxFS file system type through the
-o option.
specific_options is a list of comma separated suboptions and/or keyword/attribute pairs intended for the
VxFS-specific module of the command. Unlike some file system commands, multiple
-o options do not
accumulate; only the last option is used.
The following specific_options are valid on a VxFS file system:
blkclear
Clears all data extents before allocating them to a file (requires synchronous zeroing, on
disk, of certain newly allocated extents). This prevents uninitialized data from being writ-
ten to a file at the time of a system crash.
ckpt=ckpt_name
Mounts the Storage Checkpoint of a VxFS file system. ckpt_name is the name of a file sys-
tem Storage Checkpoint previously created. mount_point is the directory on which to
mount the Storage Checkpoint. special is the Storage Checkpoint pseudo device. Storage
Checkpoints are mounted on pseudo devices that do not appear in the system name space.
The pseudo devices are created and exist only while the Storage Checkpoint is mounted. A
Storage Checkpoint pseudo device name has the following format:
device_path:ckpt_name
Storage Checkpoints are mounted read-only by default, but you can mount or remount
them as writable using the rw option. A file system must be mounted before any of its
Storage Checkpoints can be mounted. A file system can be unmounted only after all of its
Storage Checkpoints are unmounted.
To mount a Storage Checkpoint in shared mode on a cluster file system, you must also
specify the
-o cluster option (see the EXAMPLES Section).
cluster
Mounts a file system in shared mode. special must be a shared volume in a cluster Volume
Manager (CVM) environment. Other nodes in the cluster can also mount special in shared
mode. A local mount cannot be remounted in shared mode and shared mount cannot be
remounted in local mode.
Section 1M−−470 Hewlett-Packard Company − 2 − HP-UX 11i Version 2: August 2003