VERITAS File SystemÖ 3.5 (HP OnlineJFS/JFS3.5) AdministratorÆs Guide (December 2002)

Chapter 5
Storage Checkpoints
Storage Checkpoint Administration
62
flags =none
old:
ctime =Mon Oct 16 11:56:51 2001
mtime =Mon Oct 16 11:56:51 2001
flags =none
older:
ctime =Mon Oct 16 11:56:46 2001
mtime =Mon Oct 16 11:56:46 2001
flags =none
oldest:
ctime =Mon Oct 16 11:56:41 2001
mtime =Mon Oct 16 11:56:41 2001
flags =none
Step 3. Try to convert synchronously the “latest” Storage Checkpoint to a nodata Storage Checkpoint. The
attempt will fail because the Storage Checkpoints older than the “latest” Storage Checkpoint are
data Storage Checkpoints, namely the Storage Checkpoint “old”:
# fsckptadm -s set nodata latest /mnt0
vxfs fsckptadm: checkpoint set failed on latest.
Do not specify on an existing file (17)
Step 4. You can instead convert the “latest” Storage Checkpoint to a nodata Storage Checkpoint in a
delayed or asynchronous manner. If you list the Storage Checkpoints, you will see that the “latest”
Storage Checkpoint is marked for conversion in the future:
# fsckptadm set nodata latest /mnt0
# fsckptadm list /mnt0
/mnt0
latest:
ctime =Mon Oct 16 11:56:55 2001
mtime =Mon Oct 16 11:56:55 2001
flags =nodata, delayed
old:
ctime =Mon Oct 16 11:56:51 2001
mtime =Mon Oct 16 11:56:51 2001
flags =none
older:
ctime =Mon Oct 16 11:56:46 2001
mtime =Mon Oct 16 11:56:46 2001
flags =none
oldest: ctime =Mon Oct 16 11:56:41 2001
mtime =Mon Oct 16 11:56:41 2001
flags =none
Step 5. You can combine the two previous steps and create the “latest” Storage Checkpoint as a nodata
Storage Checkpoint. The creation process will detect the presence of the older data Storage
Checkpoints and create the “latest” Storage Checkpoint as a delayed nodata Storage Checkpoint.
First remove the “latest” Storage Checkpoint:
# fsckptadm remove latest /mnt0
# fsckptadm list /mnt0
/mnt0old:
ctime =Mon Oct 16 11:56:51 2001
mtime =Mon Oct 16 11:56:51 2001
flags =none
older:
ctime =Mon Oct 16 11:56:46 2001
mtime =Mon Oct 16 11:56:46 2001
flags =none
oldest:ctime =Mon Oct 16 11:56:41 2001
mtime =Mon Oct 16 11:56:41 2001
flags =none