From owner-freebsd-scsi Tue Feb 20 11:18:33 2001 Delivered-To: freebsd-scsi@freebsd.org Received: from mobile.hub.org (mobile.acadiau.ca [131.162.137.70]) by hub.freebsd.org (Postfix) with ESMTP id 487C437B65D for ; Tue, 20 Feb 2001 11:18:22 -0800 (PST) (envelope-from scrappy@hub.org) Received: from localhost (scrappy@localhost) by mobile.hub.org (8.11.1/8.11.1) with ESMTP id f1KJHva11400; Tue, 20 Feb 2001 15:17:57 -0400 (AST) (envelope-from scrappy@hub.org) X-Authentication-Warning: mobile.hub.org: scrappy owned process doing -bs Date: Tue, 20 Feb 2001 15:17:57 -0400 (AST) From: The Hermit Hacker To: Tom Samplonius Cc: Subject: Re: Mylex 170 controller ... In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org okay, is there another card that ppl consider to be a better performer, with the same stability? stability is my primary concern, else going RAID would be useless, but it would be nice if I could get speed to go with it :) On Tue, 20 Feb 2001, Tom Samplonius wrote: > > On Tue, 20 Feb 2001, The Hermit Hacker wrote: > > > Can anyone offer some opinions on this? I know its supported, I just > > haven't dealt with RAID controllers yet, so have zero experience to work > > on here ... > > > > We have two choices ... a 32MB and a 64MB model ... at what point would > > going to a 64MB model be warranted? What sort of environment? > > Well, I have a number of AccelRAID 352s which are a faster version of > the 170 with dual channels. > > The IOs per second of each card is published on the Mylex web site. You > should make sure you can live with that first. No idea how they test, but > likely it is based on 100% cache hits. > > Generally I always install the largest cache possible in RAID > controllers, regardless of the application. > > The stock mly driver is solid, but not a fast performer. Mike Smith has > some patches > > > Thanks ... > > > > Marc G. Fournier ICQ#7615664 IRC Nick: Scrappy > > Systems Administrator @ hub.org > > primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-scsi" in the body of the message > > > > > > Marc G. Fournier ICQ#7615664 IRC Nick: Scrappy Systems Administrator @ hub.org primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message