EMC Celerra Command Reference Manual page 109

If no options are provided, a name and metavolume are
automatically assigned. Use
system.
CAUTION
!
Creating a copy using -Snapshot may be time consuming, relative
to the size of a file system.
[-volume <volume_name>]
Assigns a metavolume to a file system copy. The metavolume
must be created using the nas_volume -Clone command prior to
executing this option. The metavolume must be a BCV type and
have the same characteristics as the metavolume of the original
file system.
[-option <options>]
Specifies the following comma-separated option(s):
mirror=on
Leaves the file system copy in mirrored mode.
disktype=<disktype>
For systems with both local and R1BCVs, specifies the type of
volume to use when creating a snapshot. In a TimeFinder/FS
FarCopy configuration, use disktype=R1BCV for creating a
snapshot of the PFS on the local Celerra. For creating a snapshot
of an imported FarCopy snapshot on the remote Celerra, use
disktype=STD.
By default, the system uses the first available R1BCV or BCV, or
R1STD or STD device.
Use the disktype= option to designate which to use if there are R1
devices in your configuration.
-Restore
Restores a file system to its original location using the unmounted file
system copy created with the -Snapshot option. The original file
system must not have any associated SnapSure checkpoints.
A -Restore requires root command and must be executed using
/nas/sbin/rootfs_timefinder
nas_fs to delete the copy of the file
The fs Commands
109
fs_timefinder