Veritas File System 5.0 AdministratorÆs Guide, HP-UX 11i v3, First Edition, May 2008

7
Unmount the Storage Checkpoint, convert the Storage Checkpoint to a nodata
Storage Checkpoint, and mount the Storage Checkpoint again:
# umount /mnt0@5_30pm
# fsckptadm -s set nodata ckpt@5_30pm /mnt0
# mount -F vxfs -o ckpt=ckpt@5_30pm \
/dev/vx/dsk/dg1/test0:ckpt@5_30pm /mnt0@5_30pm
8
Examine the content of both files. The original file must contain the latest
data:
# cat /mnt0/file
goodbye
You can traverse and read the directories of the nodata Storage Checkpoint;
however, the files contain no data, only markers to indicate which block of
the file has been changed since the Storage Checkpoint was created:
# ls -l /mnt0@5_30pm/file
-rw-r--r-- 1 root other 13 Jul 13 17:13 \
# cat /mnt0@5_30pm/file
cat: read error: No such file or directory
Converting multiple Storage Checkpoints
You can convert Storage Checkpoints to nodata Storage Checkpoints, when dealing
with older Storage Checkpoints on the same file system.
89Storage Checkpoints
Storage Checkpoint administration