From owner-freebsd-hardware@FreeBSD.ORG Thu May 17 10:54:59 2007 Return-Path: X-Original-To: freebsd-hardware@freebsd.org Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 1E1A616A400 for ; Thu, 17 May 2007 10:54:59 +0000 (UTC) (envelope-from biogary@gmail.com) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.170]) by mx1.freebsd.org (Postfix) with ESMTP id A90AE13C45A for ; Thu, 17 May 2007 10:54:58 +0000 (UTC) (envelope-from biogary@gmail.com) Received: by ug-out-1314.google.com with SMTP id 71so255459ugh for ; Thu, 17 May 2007 03:54:57 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:references; b=m6KDSb8z1NIvwl36UW8fRQXT9wsFW89fE84buNZPewVnqSGUbfXO+TqO5uIzmiWnLS0HbdVFgO6UhZfpasRpawDkNXIBVskiMBE9jtdW7JxxMPo9FP16Xu9TyvkIM/YDVgS+cttzKNJh/1fjcanita1x6TdKOVKM89qlHu8YuXY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:references; b=CWk1aoLfVQN0Po9qdVS2vhjp+x/RcyiXFK3FNmVR7MXzDRRaoqjhPD76Kk3XsP+kXAM8WuHH+5/MqP4TIAW/hwsgV7FVKsQ5YfHhRDNxtasV5PKOsMmsA1p6ojUk7ul1Gks4X3FoRgwcZrAb+Sv0wZXM8doeXi/vQb1BXLSQpLQ= Received: by 10.67.30.3 with SMTP id h3mr182908ugj.1179399297340; Thu, 17 May 2007 03:54:57 -0700 (PDT) Received: by 10.67.119.11 with HTTP; Thu, 17 May 2007 03:54:57 -0700 (PDT) Message-ID: <224a745a0705170354i31fc311bsf502aba056e4c73c@mail.gmail.com> Date: Thu, 17 May 2007 18:54:57 +0800 From: "Tzu-Hua Wang" To: "Olivier Nicole" In-Reply-To: <200705170714.l4H7EgvR082226@banyan.cs.ait.ac.th> MIME-Version: 1.0 References: <224a745a0705170006t3a1df03cv5312bf6fc86ee426@mail.gmail.com> <200705170714.l4H7EgvR082226@banyan.cs.ait.ac.th> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-hardware@freebsd.org Subject: Re: messages from dmesg -- (HP ProLiant DL380 G5) X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: thwang@mail.nhcue.edu.tw List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 May 2007 10:54:59 -0000 Hi: Thank you for your response. I had tried to configure the first SAS HD as RAID 0 before. The RAID 0 SAS HD was also recognized as SCSI-0 device. I think the problem is not on the size of RAID 5 HD. Thanks 2007/5/17, Olivier Nicole : > > Hi, > > > *I can setup FreeBSD 6.2R successfully and everything is OK. * > > *However, I found that there is an amazing message in the dmesg:* > > > > *ciss0: port 0x4000-0x40ff mem > > 0xfde00000-0xfdefffff,0xfddf > > 0000-0xfddf0fff irq 18 at device 0.0 on pci6 > > ciss0: [GIANT-LOCKED]* > > > > *--->**Smart Array P400 is activated by ciss0 successfully* > > > > *da0 at ciss0 bus 0 target 0 lun 0 > > da0: Fixed Direct Access SCSI-0 device > > da0: 135.168MB/s transfers > > da0: 419946MB (860051248 512 byte sectors: 255H 32S/T 65535C)* > > Just a wild guess, but if you set-up your disks to be organised into > RAID 5 (that is one big disk) it sounds logic that all you can see is > one big disk. > > As for the speed, RAID 5 is not optimized for speed but for > reliability while preserving a low ratio of parity vs. data disk. > > If you are interested with more speed, you may have to select another > RAID agregation (this morning I found > http://www.acnc.com/04_01_00.html that shows good comparison for every > RAID config). > > Best regards, > > Olivier >