From owner-freebsd-current Thu Dec 16 7:53: 8 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 3C51114E08 for ; Thu, 16 Dec 1999 07:53:04 -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 91300137F83 for ; Thu, 16 Dec 1999 10:52:59 -0500 (EST) Received: (from dgilbert@localhost) by trooper.velocet.net (8.9.3/8.9.3) id KAA03946; Thu, 16 Dec 1999 10:52:59 -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: <14425.2778.943367.365945@trooper.velocet.net> Date: Thu, 16 Dec 1999 10:52:58 -0500 (EST) To: freebsd-current@freebsd.org Subject: AMI MegaRAID datapoint. X-Mailer: VM 6.75 under 20.4 "Emerald" XEmacs Lucid Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I have the Enterprise 1400 Megaraid adapter with (currently 16M) on it. I have tested the various modes of operation (different raid levels and striping) and find it to be working well. My LVD array consists of 8 18G Quamtum IV's. Now... using vinum and either the 2940U2W (Adaptec LVD) or the TekRAM (NCR) LVD (using the sym0 device) gives 30 to 35 M/s under RAID-5. This is impressive and subject to the bug that I mentioned in -STABLE which still hasn't been found. 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. 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. 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