From owner-freebsd-questions Thu Apr 4 13:52:29 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mta1-3.us4.outblaze.com (205-158-62-44.outblaze.com [205.158.62.44]) by hub.freebsd.org (Postfix) with ESMTP id E9C1237B41D for ; Thu, 4 Apr 2002 13:52:24 -0800 (PST) Received: from ws4-3.us4.outblaze.com (205-158-62-52.outblaze.com [205.158.62.52]) by mta1-3.us4.outblaze.com (8.11.6/8.11.6-srs) with SMTP id g34LqOh32696 for ; Thu, 4 Apr 2002 21:52:24 GMT Received: (qmail 32544 invoked by uid 1001); 4 Apr 2002 21:52:14 -0000 Message-ID: <20020404215214.32543.qmail@operamail.com> Content-Type: text/plain; charset="US-ASCII" Content-Disposition: inline Content-Transfer-Encoding: 7bit MIME-Version: 1.0 X-Mailer: MIME-tools 5.41 (Entity 5.404) Received: from [12.33.164.6] by ws4-3.us4.outblaze.com with http for jud@operamail.com; Thu, 04 Apr 2002 16:52:14 -0500 From: "Jud " To: , Cc: , , Date: Thu, 04 Apr 2002 16:52:14 -0500 Subject: Re: EIDE drive performance improvements X-Originating-Ip: 12.33.164.6 X-Originating-Server: ws4-3.us4.outblaze.com Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG ----- Original Message ----- From: Kenneth Culver Date: Thu, 4 Apr 2002 13:04:00 -0500 (EST) To: George Georgalis Subject: Re: EIDE drive performance improvements > > Well it 'seems' faster with the tags option, never heard of that, but > > we'll see if it croaks! > > The tags option enables tagged queueing on some IBM drives. I'm not sure > but I think that allows multiple ata commands to be sent to the drive at > once or something. I could be wrong so someone correct me if I am > > Ken I had been using the tags option, but stopped because: (1) My FreeBSD installation is now on a RAID array, and it seems that although each of the 2 identical IBM ATA-100 drives in the array is "tag-capable," the array is not; and (2) Leaving hw.ata.tags="1" in /boot/loader.conf appeared to cause some momentary problem messages on bootup once or twice - never enough to stop the boot altogether, but enough to cause it to pause for a moment or two. Jud -- _______________________________________________ Download the free Opera browser at http://www.opera.com/ Powered by Outblaze To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message