From owner-freebsd-stable Thu May 4 13:13:42 2000 Delivered-To: freebsd-stable@freebsd.org Received: from apoq.skynet.be (apoq.skynet.be [195.238.2.35]) by hub.freebsd.org (Postfix) with ESMTP id 9B6EF37B800; Thu, 4 May 2000 13:13:34 -0700 (PDT) (envelope-from blk@skynet.be) Received: from [195.238.1.121] (brad.techos.skynet.be [195.238.1.121]) by apoq.skynet.be (Postfix) with ESMTP id 769071F59C; Thu, 4 May 2000 22:13:15 +0200 (MET DST) Mime-Version: 1.0 X-Sender: blk@pop.skynet.be Message-Id: In-Reply-To: <20000504214714.A10267@myhakas.matti.ee> References: <20000504210635.A8681@myhakas.matti.ee> <200005041922.MAA01426@mass.cdrom.com> <20000504214714.A10267@myhakas.matti.ee> Date: Thu, 4 May 2000 22:11:59 +0200 To: vallo@matti.ee, Mike Smith From: Brad Knowles Subject: Re: How good is AMI MegaRAID support? Cc: Parag Patel , freebsd-stable@FreeBSD.ORG Content-Type: text/plain; charset="us-ascii" ; format="flowed" Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG At 9:47 PM +0200 2000/5/4, Vallo Kallaste wrote: > Exactly, but I always think that big systems are for big work and are > always near to saturation on peak hours and the likelyhood of disk > failures and degraded mode is in the same timeslot. It's been my experience that the one thing I've always got on any of the servers I run is plenty of spare CPU time, even if everything else is maxxed-out. Thus, the very minimal overhead of vinum would not be an issue (even on my most heavily used systems, I haven't been able to measure the amount of additional workload it adds), although the greater I/O bandwidth and latency involved in directly writing parity information, etc... would be. -- These are my opinions -- not to be taken as official Skynet policy ====================================================================== Brad Knowles, || Belgacom Skynet SA/NV Systems Architect, Mail/News/FTP/Proxy Admin || Rue Colonel Bourg, 124 Phone/Fax: +32-2-706.13.11/12.49 || B-1140 Brussels http://www.skynet.be || Belgium To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message