From owner-freebsd-geom@FreeBSD.ORG Thu Mar 29 08:57:51 2007 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 7912216A402 for ; Thu, 29 Mar 2007 08:57:51 +0000 (UTC) (envelope-from arne_woerner@yahoo.com) Received: from web30304.mail.mud.yahoo.com (web30304.mail.mud.yahoo.com [209.191.69.66]) by mx1.freebsd.org (Postfix) with SMTP id 448D813C455 for ; Thu, 29 Mar 2007 08:57:51 +0000 (UTC) (envelope-from arne_woerner@yahoo.com) Received: (qmail 40089 invoked by uid 60001); 29 Mar 2007 08:57:50 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=ulxnH9ORvu6/yYIGkEjc8hQTvOsIknRtuEjYAPY5y6S1xJ6DqV4wP7sccUu/7e3gAWcO0lga5RX5Ureke5OL+3KzEUVgmOX08ESrop83TH54pzgf5xzsK/8wveUUMrd5HaK88G7xTuP5EF5JKMq2/GX/xZBHmtA1LiY0Ar1l8H8=; X-YMail-OSG: EIl0QeoVM1nHEwzuKsWnUPvxhPrr6fqzih.uqu1FpMKI848SKAn8JJGmf8GMfItWjAxQSgWfno7PDE6SRQ603SKX71ENuz2EQCmwM9Vi_V2JNeEn.mshTEtechW77g-- Received: from [85.212.19.59] by web30304.mail.mud.yahoo.com via HTTP; Thu, 29 Mar 2007 01:57:50 PDT Date: Thu, 29 Mar 2007 01:57:50 -0700 (PDT) From: "R. B. Riddick" To: "Szabó" "Péter" , freebsd-geom@freebsd.org In-Reply-To: <003301c771de$08d03650$6502a8c0@peteruj> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Message-ID: <707306.40086.qm@web30304.mail.mud.yahoo.com> Cc: Subject: Re: raid3 is slow X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Mar 2007 08:57:51 -0000 --- Szabó Péter wrote: > A SATA cable was wrong, and the 5th disk of the raid was not connected. Now > i fix it. > > Geom name: nmivol > State: COMPLETE > OK... :-) > # apply "dd if=/dev/ad%1 of=/dev/null bs=1m count=250 &" 0 1 2 3 4 > 250+0 records out > 262144000 bytes transferred in 4.324466 secs (60618814 bytes/sec) > 250+0 records in > 250+0 records out > 262144000 bytes transferred in 6.289833 secs (41677418 bytes/sec) > 250+0 records in > 250+0 records out > 262144000 bytes transferred in 6.262564 secs (41858894 bytes/sec) > 250+0 records in > 250+0 records out > 262144000 bytes transferred in 7.871292 secs (33303808 bytes/sec) > 250+0 records in > 250+0 records out > 262144000 bytes transferred in 7.857484 secs (33362333 bytes/sec) > Looks good... > I forgot to tell, one label of the raid is a gbde encoded partition. If i do > a read test from the raid, the load seems normal?!?! I don't know how high > is normal. > And why is that? I mean: It doesnt encrypt the data really, because graid3 can still read with a missing disk (consumer)... > # dd if=/dev/raid3/nmivol of=/dev/null bs=1m count=30000 > 30000+0 records in > 30000+0 records out > 31457280000 bytes transferred in 336.545001 secs (93471244 bytes/sec) > Doesnt look much faster than before (86MB/sec or so?)... What happens, when u do not use a gbde device as a consumer? What happens when u try to read from a file system on top of the graid3 device? -Arne ____________________________________________________________________________________ Don't pick lemons. See all the new 2007 cars at Yahoo! Autos. http://autos.yahoo.com/new_cars.html