Assume your system disk is c0t0d0 and
u have a spare disk c0t4d0 of same geometry.
make sure that there are no much activities on the system or try during night hours
say, thru a cron job.
#dd if=/dev/rdsk/c0t0d0s2 of=/dev/rdsk/c0t4d0s2 bs=128k
(may take some time depending on the size
of the disk)
After dd is over , do fsck for all the file systems on c0t4d0.
Now u got a clone disk !!! Remove c0t4d0
and keep it safe.
Try it out. Iam using this technique for the last 4 years.
Cheers!!
jay
[sig][/sig]