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UMOUNT_VXFS (1M)

Maintenance Commands

Table of contents


NAME

umount_vxfs - unmount a VxFS file system

SYNOPSIS

/opt/VRTSvxfs/sbin/umount [ generic_options ] [ -o [ force ]]
{ special | mount_point }

AVAILABILITY

VRTSvxfs

DESCRIPTION

umount notifies the system that special, a VxFS block special device, is available to users from mount_point. mount_point must exist before umount is called. mount_point becomes the name of the root of the newly mounted file system special.

If a file system has mounted Storage Checkpoints, all the Storage Checkpoints must be unmounted before unmounting the file system.


OPTIONS

generic_options
Supported by the generic umount command. See the mount manual page.
-o
Specifies the VxFS-specific options in a comma-separated list. The available option is:
force
Unmounts a VxFS file system even if it contains busy files. Caution: Using the force option can corrupt data in open files.

If force is not specified, umount does not unmount the file system if it contains any busy files. Programs that try to access files after a file system is forcibly unmounted receive an EIO error.

If a file system has mounted Storage Checkpoints, that file system can be unmounted only after all of its Storage Checkpoints are unmounted, even if the force option is specified.


NOTES

Only a privileged user can unmount file systems.

FILES

/etc/filesystems
File system characteristics

SEE ALSO

fsync, mount, setuid, fsadm_vxfs(1M), mkfs_vxfs(1M), mount_vxfs(1M), qiomkfile(1M), fs_vxfs(4), vxfsio(7)

Last updated: 01 April 2006
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