Create a snap on ACFS

Unzip the files to /voltest filesystem
[root@host02 /]# unzip images.zip -d /voltest
Archive:  images.zip
  creating: /voltest/gridInstall/
  inflating: /voltest/gridInstall/asm.gif
  inflating: /voltest/gridInstall/bullet2.gif
  inflating: /voltest/gridInstall/bullet.gif
 extracting: /voltest/gridInstall/divider.gif
 extracting: /voltest/gridInstall/gradient.gif

[root@host02 /]# ls -R /voltest/
/voltest/:
gridInstall  lost+found  test.txt
/voltest/gridInstall:
asm.gif            t20108.gif        t30104.gif   t30119d.gif
/voltest/lost+found:
create an snap.
[root@host02 /]# acfsutil snap create snap_001 /voltest/
acfsutil snap create: Snapshot operation is complete.
[root@host02 /]# cd /voltest/
[root@host02 voltest]# ls -la
total 96
drwxrwx---  5 root asmadmin  4096 Nov  4 13:04 .
drwxr-xr-x 28 root root      4096 Nov  4 12:57 ..
drwxr-xr-x  5 root root      4096 Nov  4 13:01 .ACFS
drwxr-xr-x  2 root root     12288 May  6  2009 gridInstall
drwx------  2 root root     65536 Nov  4 13:01 lost+found
-rw-r--r--  1 root root         0 Nov  4 12:58 test.txt
[root@host02 voltest]# du -h gridInstall/
2.0M    gridInstall/
[root@host02 voltest]# ls .ACFS/
repl  snaps
[root@host02 voltest]# ls .ACFS/snaps/
snap_001
[root@host02 voltest]# ls .ACFS/snaps/snap_001/
gridInstall  lost+found  test.txt
[root@host02 voltest]# du -h .ACFS/snaps/snap_001/gridInstall/
2.0M    .ACFS/snaps/snap_001/gridInstall/
delete an file to test the snap function
[root@host02 voltest]# rm gridInstall/asm.gif
rm: remove regular file `gridInstall/asm.gif'? y
Create the other snap.
[root@host02 voltest]# acfsutil snap create snap_002 /voltest
acfsutil snap create: Snapshot operation is complete.
get the info about the filesystem.
[root@host02 voltest]# acfsutil info fs /voltest/
/voltest/
    ACFS Version: 11.2.0.1.0.0
    flags:        MountPoint,Available
    mount time:   Fri Nov  4 12:57:36 2011
    volumes:      1
    total size:   1342177280
    total free:   1161023488
    primary volume: /dev/asm/voltest-14
        label:                
        flags:                 Primary,Available,ADVM
        on-disk version:       39.0
        allocation unit:       4096
        major, minor:          252, 7169
        size:                  1342177280
        free:                  1161023488
        ADVM diskgroup         FRA
        ADVM resize increment: 268435456
        ADVM redundancy:       unprotected
        ADVM stripe columns:   4
        ADVM stripe width:     131072
    number of snapshots:  2
    snapshot space usage: 2260992
Restore the asm.gif file to filesystem from the snapshot.

[root@host02 voltest]# cp ./.ACFS/snaps/snap_001/gridInstall/asm.gif ./gridInstall/asm.gif
[root@host02 voltest]# umount /voltest/