Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965147AbVJENjI (ORCPT ); Wed, 5 Oct 2005 09:39:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965173AbVJENjH (ORCPT ); Wed, 5 Oct 2005 09:39:07 -0400 Received: from web30312.mail.mud.yahoo.com ([68.142.201.230]:2904 "HELO web30312.mail.mud.yahoo.com") by vger.kernel.org with SMTP id S965147AbVJENjG (ORCPT ); Wed, 5 Oct 2005 09:39:06 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=UvoQIs4jAh/xX0eb2bp1Io3s50NegK3En6m6gj3q8kxAZnlyA5adNSvxmIo0aLoQNo1AaJoMJcAGaJWDUP+kWsSsx5leu8YYEnhwOar2ghga7/VhR+5bw78lwKlO6FXRXPQmMvbn9kKfdhAxG5EZ2YAH6Cyp/8nAwMPPc/6PXOk= ; Message-ID: <20051005133906.90687.qmail@web30312.mail.mud.yahoo.com> Date: Wed, 5 Oct 2005 06:39:06 -0700 (PDT) From: subbie subbie Subject: Re: 3Ware 9500S-12 RAID controller -- poor performance To: "Dr. David Alan Gilbert" Cc: linux-kernel@vger.kernel.org In-Reply-To: <20051005131804.GD18448@gallifrey> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1848 Lines: 62 Hi > > I've got driver/firmware that is about 2months old > that > certainly helped; prior to that I was getting card > timeouts (although I also upgraded the e1000 driver > at the same time so it might have been that rather > than the 3ware that helped). Two months old might be too old, make sure you have at least 9.2.1.1 > (Note: I don't expect a driver to perform a > dangerous > operation like firmware flashing on boot!) I believe they are writing to NVRAM or similar so that makes it much less risky, otherwise they wouldn't have to write it on each load ... or I might be wrong and they do it once, not sure. > > I'm getting a little over 50MB/s when writing to > my > > RAID volume when completely idle, there's no > reason > > why you should get less. > > Well my ~30MB/s is sucking over gig ether and > writing > in 10MB chunks; but still 50MB/s for RAID5 feels > like > it sucks. Yes, that's terrible. Reading the release notes for the latest one, 9.3.0 that also supports their very latest controller, 9550SX, I get the feeling that write performance is something of an on-going issue with this family of controllers even though they disguise it in this latest driver version as a tweak in write performance. Another thing, the BBU (battery backup unit) that you are using was also a can of worms for them so this makes it even more important for you to upgrade to the very latest version ,they seem to be having ongoing issues with that one. Good luck to us all. __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/