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

Chapter 5
Storage Checkpoints
Storage Checkpoint Administration
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To automatically mount this Storage Checkpoint when the system starts up, put the following entries in the
/etc/fstab file:
To mount a Storage Checkpoint of a cluster file system, you must also use the –o cluster option:
# mount -F vxfs -o cluster,ckpt=may_23 \
/dev/vx/dsk/fsvol/vol1:may_23 /fsvol_may_23
You can only mount a Storage Checkpoint clusterwide if the file system that the Storage Checkpoint belongs
to is also mounted clusterwide. Similarly, you can only mount a Storage Checkpoint locally if the file system
that the Storage Checkpoint belongs to is mounted locally.
You can unmount Storage Checkpoints using the umount command (see umount_vxfs (1M)). Storage
Checkpoints can be unmounted by the mount point or pseudo device name:
# umount /fsvol_may_23
# umount /dev/vx/dsk/fsvol/vol1:may_23
/dev/vx/dsk/fsvol/vol1 /fsvol vxfs defaults 0 2
/dev/vx/dsk/fsvol/vol1:may_23 /fsvol_may_23 vxfs clone=may_23 0 0
NOTE You do not need to run the fsck utility on a Storage Checkpoint pseudo device because this
utility runs on the actual file system.
Device Special File device
to fsck
mount
point
FS
type
fsck
pass
mount
at boot
mount
options
/dev/vx/dsk/
fsvol/vol1
/dev/vx/rdsk/
fsvol/vol1
/fsvol vxfs 1 yes —
/dev/vx/dsk/fsvol/
vol1:may_23
— /fsvol_may_23 vxfs 0 yes ckpt=
may_23