After you install the system with all packages you need and the data you need in it, you create the Flash archive. All the files on the system are copied to the archive along with various pieces of identifying information. Command “flarcreate” is used to create the archive. The flarcreate command requires the -n name option and a file name for the archive.
Example: The -n options specifies the server name and -c option enables data compression.
# flarcreate -n mobile_server -c /export/home/mobilebackup.flar
Determining which filesystems will be included in the archive…
Determining the size of the archive…
The archive will be approximately 3.12GB.
Creating the archive…
8713899 blocks
Archive creation complete.
References : http://www.sun.com/bigadmin/content/submitted/flash_archive.jsp