Can you put the files on two different disk drives?

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of
Mikhail Malamud
Sent: Saturday, May 14, 2005 9:39 PM
To: misc@openbsd.org
Subject: Re: fdisk and disklabel C/H/S


--- Steve Shockley <[EMAIL PROTECTED]>
wrote:
> Reported CHS has been different than actual CHS
> since PC hard drives 
> started exceeding 1024 cylinders.  Today, using the
> physical geometry 
> would be difficult because the number of sectors per
> track would vary.
> 
> Also, you wouldn't want to put a partition on a
> single platter, since 
> all the heads (on almost all drives) are linked
> together and you'd spend 
> a lot of time seeking.  With variable sectors per
> track, the outside 
> edge of the disk is faster (sometimes double!) so
> you want to use that 
> first.

This blows because I am porting a legacy application
from an MVS system. This application accesses two
sequential datasets - flat files that are over 10GBs.
Since both files have to be accessed at the same time,
I was hoping to put them on different platters to
avoid disk contention - two processes attempting to
read from the same or near cyclinder groups but since
like you say all heads are linked together, this wont
do much good. 

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