How to force identical disk geometry

From: Mohamed Lrhazi (mohamed_at_your-site.com)
Date: 06/26/03

  • Next message: Paul Boven: "Summary: ufsdump doesn't unload tape" 
    To: <sunmanagers@sunmanagers.org>
Date: Wed, 25 Jun 2003 23:54:56 -0400

    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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