From owner-freebsd-current Fri Dec 17 7: 3: 3 1999 Delivered-To: freebsd-current@freebsd.org Received: from sabre.velocet.net (sabre.velocet.net [198.96.118.66]) by hub.freebsd.org (Postfix) with ESMTP id 0736C14DA3; Fri, 17 Dec 1999 07:02:59 -0800 (PST) (envelope-from dgilbert@trooper.velocet.net) Received: from trooper.velocet.net (trooper.velocet.net [216.126.82.226]) by sabre.velocet.net (Postfix) with ESMTP id 1CFE8137FCB; Fri, 17 Dec 1999 10:02:58 -0500 (EST) Received: (from dgilbert@localhost) by trooper.velocet.net (8.9.3/8.9.3) id KAA21926; Fri, 17 Dec 1999 10:02:57 -0500 (EST) (envelope-from dgilbert) From: David Gilbert MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <14426.20641.329657.464545@trooper.velocet.net> Date: Fri, 17 Dec 1999 10:02:57 -0500 (EST) To: Mike Smith Cc: David Gilbert , freebsd-current@freebsd.org Subject: Re: AMI MegaRAID datapoint. In-Reply-To: <199912162354.PAA02071@mass.cdrom.com> References: <14425.2778.943367.365945@trooper.velocet.net> <199912162354.PAA02071@mass.cdrom.com> X-Mailer: VM 6.75 under 20.4 "Emerald" XEmacs Lucid Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG >>>>> "Mike" == Mike Smith writes: >> The AMI MegaRAID 1400 delivers between 16.5 and 19 M/s (the 19M/s >> value is somewhat contrived --- using 8 bonnies in parrallel and >> then summing their results --- which is not 100% valid)... but the >> MegaRAID appears to be stable. Mike> Hmm. Those numbers aren't so great though. I'd be interested Mike> to know how busy the controller is during your test (use systat Mike> -vmstat 1 and look at the amrd0 device), as well as how you've Mike> configured it. AMI's default configurations for those Mike> controllers is wildly inconsistent between one BIOS version and Mike> the next. Well... it's RAID-5 across the same 8 drives with all 8 drives on one LVD chain (same configuration as the other test). I have tried the 128k stripe, but it was slower than the default 64k stripe. >> I would like to know, however, if there are any planned or >> in-the-works utility programs for the amr device. In particular, a >> program to print the state of the array would be useful. Mike> I'm currently waiting on AMI for more documentation, at which Mike> point there will indeed be more monitoring and control Mike> facilities added. Dave. -- ============================================================================ |David Gilbert, Velocet Communications. | Two things can only be | |Mail: dgilbert@velocet.net | equal if and only if they | |http://www.velocet.net/~dgilbert | are precisely opposite. | =========================================================GLO================ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message