Use ZFS snapshot and rollback file system with snapshot on Solaris 10

# zfs snapshot -r labpool/zman@snap1
# zfs list -r -t all labpool
NAME                 USED  AVAIL  REFER  MOUNTPOINT
labpool             2.82M  1.11G  46.4K  /labpool
labpool/zman        2.71M  1.11G  2.71M  /labpool/zman
labpool/zman@snap1      0      -  2.71M  -
# ls -al /labpool/zman/man1/zip.1
-r--r--r--   1 root     bin        85963 Feb 29  2012 /labpool/zman/man1/zip.1

Now we delete this file

# rm /labpool/zman/man1/zip.1
# ls -al /labpool/zman/man1/zip.1
/labpool/zman/man1/zip.1: No such file or directory

Now we rollback

# zfs rollback labpool/zman@snap1
# ls -al /labpool/zman/man1/zip.1
-r--r--r--   1 root     bin        85963 Feb 29  2012 /labpool/zman/man1/zip.1

Now we create a clone

# zfs clone labpool/zman@snap1 labpool/zmanclone
# zfs list -r -t all labpool
NAME                 USED  AVAIL  REFER  MOUNTPOINT
labpool             2.87M  1.11G  46.4K  /labpool
labpool/zman        2.71M  1.11G  2.71M  /labpool/zman
labpool/zman@snap1  1.50K      -  2.71M  -
labpool/zmanclone   1.50K  1.11G  2.71M  /labpool/zmanclone