Examples of restoring a file from a Storage Checkpoint


Examples of restoring a file from a Storage Checkpoint
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The following example restores a file, MyFile.txt, which resides in your home directory, from the Storage Checkpoint CKPT1 to the device /dev/vx/dsk/dg1/vol-01. The mount point for the device is /home.

To restore a file from a Storage Checkpoint

Create the Storage Checkpoint CKPT1 of /home.
```
  $ fckptadm create CKPT1 /home
```

Mount Storage Checkpoint CKPT1 on the directory /home/checkpoints/mar_4.

  $ mount -V vxfs -o ckpt=CKPT1 /dev/vx/dsk/dg1/vol- \
  01:CKPT1 /home/checkpoints/mar_4

Delete the file MyFile.txt from your home directory.
```
  $ cd /home/users/me
  $ rm MyFile.txt
```

Go to the /home/checkpoints/mar_4/users/me directory, which contains the image of your home directory.

  $ cd /home/checkpoints/mar_4/users/me
  $ ls -l
  -rw-r--r--  1  me  staff  14910   Mar 4   17:09   MyFile.txt

Copy the file MyFile.txt to your home directory.

  $ cp MyFile.txt /home/users/me
  $ cd /home/users/me
  $ ls -l
  -rw-r--r--   1 me  staff  14910   Mar 4  18:21   MyFile.txt

The following example restores a file system from the Storage Checkpoint CKPT3. The filesets listed before the restoration show an unnamed root fileset and six Storage Checkpoints.

To restore a file system from a Storage Checkpoint

Run the fsckpt_restore command:

  # fsckpt_restore -l /dev/vx/dsk/dg1/vol2 
  /dev/vx/dsk/dg1/vol2:
  UNNAMED:
    ctime        = Thu 08 May 2004 06:28:26 PM PST
    mtime        = Thu 08 May 2004 06:28:26 PM PST
    flags        = largefiles, file system root
  CKPT6:
     ctime        = Thu 08 May 2004 06:28:35 PM PST
    mtime        = Thu 08 May 2004 06:28:35 PM PST
    flags        = largefiles
  CKPT5:
    ctime        = Thu 08 May 2004 06:28:34 PM PST
    mtime        = Thu 08 May 2004 06:28:34 PM PST
    flags        = largefiles, nomount
  CKPT4:
    ctime        = Thu 08 May 2004 06:28:33 PM PST
    mtime        = Thu 08 May 2004 06:28:33 PM PST
    flags        = largefiles
  CKPT3:
    ctime        = Thu 08 May 2004 06:28:36 PM PST
    mtime        = Thu 08 May 2004 06:28:36 PM PST
    flags        = largefiles
  CKPT2:
    ctime        = Thu 08 May 2004 06:28:30 PM PST
    mtime        = Thu 08 May 2004 06:28:30 PM PST
    flags        = largefiles
  CKPT1:
    ctime        = Thu 08 May 2004 06:28:29 PM PST
    mtime        = Thu 08 May 2004 06:28:29 PM PST
    flags        = nodata, largefiles

In this example, select the Storage Checkpoint CKPT3 as the new root fileset:

  Select Storage Checkpoint for restore operation
   or <Control/D> (EOF) to exit
   or <Return> to list Storage Checkpoints: CKPT3
  CKPT3:
    ctime        = Thu 08 May 2004 06:28:31 PM PST
    mtime        = Thu 08 May 2004 06:28:36 PM PST
    flags        = largefiles
  UX:vxfs fsckpt_restore: WARNING: V-3-24640: Any file system
  changes or Storage Checkpoints made after
  Thu 08  May 2004 06:28:31 PM PST will be lost.

Type y to restore the file system from CKPT3:
```
  Restore the file system from Storage Checkpoint CKPT3 ?
  (ynq) y
  (Yes)
  UX:vxfs fsckpt_restore: INFO: V-3-23760: File system
  restored from CKPT3
```
If the filesets are listed at this point, it shows that the former UNNAMED root fileset and CKPT6, CKPT5, and CKPT4 were removed, and that CKPT3 is now the primary fileset. CKPT3 is now the fileset that will be mounted by default.

Run the fsckpt_restore command:

  # fsckpt_restore -l /dev/vx/dsk/dg1/vol2
  /dev/vx/dsk/dg1/vol2:
  CKPT3:
    ctime        = Thu 08 May 2004 06:28:31 PM PST
    mtime        = Thu 08 May 2004 06:28:36 PM PST
    flags        = largefiles, file system root
  CKPT2:
    ctime        = Thu 08 May 2004 06:28:30 PM PST
    mtime        = Thu 08 May 2004 06:28:30 PM PST
    flags        = largefiles
  CKPT1:
    ctime        = Thu 08 May 2004 06:28:29 PM PST
    mtime        = Thu 08 May 2004 06:28:29 PM PST
    flags        = nodata, largefiles
  Select Storage Checkpoint for restore operation
   or <Control/D> (EOF) to exit
   or <Return> to list Storage Checkpoints: