Veritas Question

Catch_22

ok i have a bit of a problem with creating a snapshot of a file system with veritas

heres the scenario, lets say we have a file system "create" made by:

(its only 20 meg to demonstrate the point)
# vxassist make create 20m
# mkfs -F vxfs /dev/vx/rdsk/create


then we have a filesystem which we want to be the snapshot:

# vxassist make create_SNAPSHOT 20m
# mkfs -F vxfs /dev/vx/rdsk/create_SNAPSHOT

now we mount the first one & chuck a few files in it

# mount -F vxfs /dev/vx/dsk/create /create

# find /tmp -depth |cpio -pdumv /create

then to create the snapshot i should be able to do:

#mount -F vxfs -o snapof=/dev/vx/dsk/create,snapsize=20m /dev/vx/dsk/create_SNAPSHOT /create_SNAPSHOT

but this returns

vxfs mount: /dev/vx/dsk/create is not a vxfs file system

so i try using the mount point rather than the device, i.e.

#mount -F vxfs -o snapof=/create,snapsize=20m /dev/vx/dsk/create_SNAPSHOT /create_SNAPSHOT

results in same error

the file systems are definately vxfs as shown by the mkfs commands -- they are also listed by df -g and vxprint as vxfs

so anyone any idea whats going on ??


thanx

c22

Catch_22

to save anyone replying the solution is the snapsize= parameter should be in sectors rather than bytes

c22