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Solaris 8 System Administration Supplement

How to Back Up a UFS Snapshot

  1. Become superuser.

  2. Identify the file-system snapshot to be backed up.


    # fssnap -i /file-system

    For example:


    # fssnap -i /usr
Snapshot number               : 1
Block Device                  : /dev/fssnap/1
Raw Device                    : /dev/rfssnap/1
Mount point                   : /usr
Device state                  : idle
Backing store path            : /scratch/usr.back.file
Backing store size            : 480 KB
Maximum backing store size    : Unlimited
Snapshot create time          : Tue Aug 08 09:57:07 2000
Copy-on-write granularity     : 32 KB

  3. Back up the file-system snapshot.


    # ufsdump 0ucf /dev/rmt/0 /snapshot-name

    For example:


    # ufsdump 0ucf /dev/rmt/0 /dev/rfssnap/1

  4. Verify the snapshot is backed up.


    # ufsrestore ta /dev/rmt/0