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From: roberto@eurocontrol.fr (Ollivier Robert)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Ultra Wide Scsi - which controller?
Date: 24 Apr 1997 09:57:46 GMT
Organization: Eurocontrol EEC, Bretigny, France
Lines: 31
Message-ID: <5jnaqq$ak1$5@polaris.eurocontrol.fr>
References: <5j5gla$r88$1@csnews.cs.colorado.edu> <5j7ifv$f97$2@polaris.eurocontrol.fr> <5jleol$796$1@colias.tutics.tut.ac.jp>
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Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:39667
[courtesy cc of this posting sent to cited author via email]
In article <5jleol$796$1@colias.tutics.tut.ac.jp>,
Sarif Koichi <sarif@luehdorfia.dsl.tutics.tut.ac.jp.> wrote:
> Could you tell me some logical explanation about this.
It is difficult to saturate a SCSI bus with only one drive. With multiple
drives, you can use the bandwidth in a better manner. You can multiplex
commands on multiple drives resulting in better results.
> Just then, if you have 2 drives could you tell me which to put in one
> drive and what to put on the other drive. Could it be swap drive, and
> system drive (all in / directory).
Here is what I use here with 2x 2GB disks
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/sd0a 29727 17294 10055 63% /
/dev/sd0s1e 98479 56967 33634 63% /usr
/dev/sd1s1e 506991 357270 109162 77% /usr/local
/dev/sd0s1f 29727 15 27334 0% /tmp
/dev/sd0s1g 98479 10029 80572 11% /var
/dev/sd1s1f 197951 108373 73742 60% /usr/obj
/dev/sd0s1d 993759 478907 435352 52% /home
/dev/sd1s1g 595839 336308 211864 61% /home/ncvs
/dev/sd1s1h 628639 563745 14603 97% /spare
/dev/sd0s1h 670735 279519 337558 45% /src
--
Ollivier ROBERT -=- FreeBSD: there are no limits -=- roberto@eurocontrol.fr
FreeBSD FAQ: <URL:http://www.FreeBSD.org/FAQ/>