Veritas File System 5.0 Administrator's Guide (September 2006)

The size of the snapshot file system in sectors.size
Location where to mount the snapshot; snap_mount_pointmust
exist before you enter this command.
snap_mount_point
Example of creating and mounting a snapshot of a VxFS file
system
The following example creates a snapshot file system of the file system at /home
on /dev/vx/dsk/fsvol/vol1, and mounts it at /snapmount.
To create and mount a snapshot file system of a file system
◆
Create a snapshot file system of the file system at /home on
/dev/vx/dsk/fsvol/vol1 and mount it at /snapmount:
# mount -F vxfs -o snapof=/home, \
snapsize=32768 /dev/vx/dsk/fsvol/vol1 /snapmount
You can now back up the file system.
Backing up a file system
After creating a snapshot file system, you can use vxdump to back it up.
To back up a VxFS snapshot file system
◆
Use the vxdump command to back up a VxFS snapshot file system:
vxdump [-c] [-f backupdev] snap_mount_point
Specifies using a cartridge tape device.-c
The device on which to back up the file system.backupdev
The snapshot file system's mount point.snap_mount_point
Example of backing up a file system
The following example backs up the VxFS snapshot file system mounted at
/snapmount to the tape drive with device name /dev/rmt.
219Quick Reference
Backing up and restoring a file system