Disk layouts for non-Sun disks

From: Wilson Mohr (wilson.mohr@emns.com)
Date: Wed Jul 23 2003 - 17:22:17 EDT


Ok, I'm a bit of a salvage artist so I hope this doesn't go "too far
out" there......

I've got a ton of old equipment that I've kept spinning for years. I've
gotten into the
habit of buying the OEM (std) drives and sticking them into the SPUD of
the dead HD.
Unfortunately, "format" gives them a different layout than originally
shipped as a Sun
part. For example, if you pull out a Sun 18GB Hard drive you will find
that it is most
likely a Seagate ST318203LC. The layout on this disk is " cyl 7506 alt 2
hd 19 sec 248"
resulting in 7506 blks of disk space. If you get an "off the rack"
ST318203LC, you
will find that it's layout is "cyl 9770 alt 2 hd 12 sec 303" resulting
in 9770 blks of disk
space (albeit a different blksize). This is the rub, the Sun disk
reports its size as 16.86GB
and the std disk reports itself as 16.94GB.

I am using SDS (Sun Volume Manager) and as long as I keep my volumes
matched in size,
I have no problems. The only problem I have is that if I create a
volume orignally using the
std disk, I cannot replace it with a Sun disk (not large enough).

My question is this. Is there a way to make the Sun disk look like a std
disk or make a std
disk look like a Sun disk (essentially re-format it?)?? aTdHvAaNnKcSe!

-- 
Wilson Mohr                                              mohr@emns.com
Director of Operations                     Telephone - +1-630-218-7666
Support - +1-866-970-7777                             support@emns.com
http://www.emns.com/                                semper ubi sub ubi
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