From owner-freebsd-hardware Fri Aug 11 12:59:44 1995 Return-Path: hardware-owner Received: (from majordom@localhost) by freefall.FreeBSD.org (8.6.11/8.6.6) id MAA06045 for hardware-outgoing; Fri, 11 Aug 1995 12:59:44 -0700 Received: from kryten.atinc.com (kryten.Atinc.COM [198.138.38.7]) by freefall.FreeBSD.org (8.6.11/8.6.6) with ESMTP id MAA06031 for ; Fri, 11 Aug 1995 12:59:32 -0700 Received: (jmb@localhost) by kryten.atinc.com (8.6.9/8.3) id PAA19040; Fri, 11 Aug 1995 15:50:43 -0400 Date: Fri, 11 Aug 1995 15:50:40 -0400 (EDT) From: "Jonathan M. Bresler" Subject: Re: Upgrade to my machine To: "Rodney W. Grimes" cc: msmith@atrad.adelaide.edu.au, john@zyqad.co.uk, freebsd-hardware@freebsd.org In-Reply-To: <199508111942.MAA04834@gndrsh.aac.dev.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: hardware-owner@freebsd.org Precedence: bulk On Fri, 11 Aug 1995, Rodney W. Grimes wrote: > > > XX. BAS DEC3053L Dec/Quantum 535MB 3.5"x1", SCSI-II, 5400 RPM, 9.5mS $ 195.00 > > > > rod, this is a great drive and i am very satisfied with mine ;) > > it is also a loud drive. when i hit swap on it, i know immediately. the > > seek motor must be a monster! ;) > > Getting that last .5mS cost a bit in noise. You should be in a room with > 10 of those laying out on benches running make worlds on a pile of machines, > now that is LOUD. ;))) > > IOZONE: auto-test mode > > Pretty typical numbers, but the numbers I use are always for a > freshly newfs disk using the outer tracks (ie, maximal conditions). > > Your numbers are considerably lower than my 2.4/4.4MB/sec rating > for the DSP3053L due to file system fragmentation and the fact your > probably running at about the 250MB mark in on the disk (guessed from > your numbers :-)). at that point the disk had been in constant use for some 5 months, must have had 300mb on it at the time > > bonnie: > > > > /* dont jive with the iozone number very well, do they ? comments ? */ > > Was this under identical conditions? identical is a pretty strong condition.....the fujitsu drive was new at the time so fragmentation was minimal. at this time, several weeks of use it still reports the same bonnie numbers. > > disklabels: NOTE: any misconfiguration here is my fault > > any recommenations are appreciated > > Actually, any miss configuration on the DSP3053L is _MY_ fault. That > is my standard label, I recognize it! two points! > > type: SCSI > > disk: sd1s1 > > This one you can take the blame for, but it is reasonable. ;) had a place to take clues from. > > /* sysinstall put all these partitions off cylinder boundaries.....hmmm */ > > You don't have to worry about cyl boundaries inside the BSD slice. excellent....but ths slice must be on cyl boundaries ?? Jonathan M. Bresler jmb@kryten.atinc.com | Analysis & Technology, Inc. FreeBSD Postmaster jmb@FreeBSD.Org | 2341 Jeff Davis Hwy play go. | Arlington, VA 22202 ride bike. hack FreeBSD.--ah the good life | 703-418-2800 x346