How to force identical disk geometry

From: Mohamed Lrhazi (mohamed@your-site.com)
Date: Wed Jun 25 2003 - 23:54:56 EDT


Hello all,

I have many identical disks, part of an A5000 disk array... Seagate Cheetah
36GB... when I do format, and verify, the disk label is SUN36G... One of
these disks failed, so we purchased a new one, a used-new one :), actually
two of them...

Now when I try to format them, because luxadm says No Unix Label, and type
the TYPE command, in format, SUN#$G is not listed at all as a possible
type!!! I tried autoconfig, but it failed....

I tried formatting one of these drivers, but still cannot LABEL it, it fails
with error:

Warning: error writing VTOC.
Label failed.

Also, the geometry is quite different then my other disks, the total size is
a little smaller as well,

My newly formatted disk:

Backup label contents:

Volume name = < >
ascii name = <SEAGATE-ST136403CLAR36-DE44 cyl 9602 alt 2 hd 24 sec 303>
pcyl = 9604
ncyl = 9602
acyl = 2
nhead = 24
nsect = 303

My other good disks:

ascii name = <SUN36G cyl 24620 alt 2 hd 27 sec 107>
pcyl = 24622
ncyl = 24620
acyl = 2
nhead = 27
nsect = 107

Are these new disks I got bad?

Is there a way to clone the geometry format of an existing disk over to
another, like prtvtoc /dev/rdsk/c1t20d0s0| fmthard -s - /dev/rdsk/c1t21d0s0
does for partitions ?
 If not, how can I get this disk to format identically to my other ones, and
why does the labeling fail?

Thank you very much, I will summarize.

Mohamed~
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