From owner-freebsd-questions@FreeBSD.ORG Thu May 24 13:31:05 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id BD32416A400 for ; Thu, 24 May 2007 13:31:05 +0000 (UTC) (envelope-from jackbarnett@gmail.com) Received: from py-out-1112.google.com (py-out-1112.google.com [64.233.166.177]) by mx1.freebsd.org (Postfix) with ESMTP id CC91913C50D for ; Thu, 24 May 2007 13:31:04 +0000 (UTC) (envelope-from jackbarnett@gmail.com) Received: by py-out-1112.google.com with SMTP id a29so899926pyi for ; Thu, 24 May 2007 06:31:04 -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:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; b=maVEhQ1CoA+AQLd1T3b5y7IPBLm3P2a+OYCaT12OJo19RjLCovZSQZ0ctWKQvwrLr//YEHpWf3vVIzZ5MYZbe1NaZZmWME6wCYjQd4T1h0ZcGuuQ2DUqlKktF/zDld40yJn50GWKvxyuzzsBlnXcjwW2jepa7DoTODBE4FoWJM4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:reply-to:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; b=ef+kBlDKYD8v0GR4J8BL1Qg/pBpt7AxbbjeiKIRJ2bGeDZDHs7oTYSxWORT7UsD6Rn1OSdCUvMtdVpZrA2DCznWIyD/ZgbQFymPRYiqhJApNVg6oNbbQjkC+eAS0hVTtCErlcex2przAT08AUwYlyaBsX2an1tuj/UfE0GhJZ6A= Received: by 10.35.86.12 with SMTP id o12mr3256792pyl.1180013464003; Thu, 24 May 2007 06:31:04 -0700 (PDT) Received: from ?192.168.17.10? ( [66.41.41.11]) by mx.google.com with ESMTP id f77sm4971706pyh.2007.05.24.06.31.02; Thu, 24 May 2007 06:31:03 -0700 (PDT) Message-ID: <46559397.3040108@gmail.com> Date: Thu, 24 May 2007 08:31:03 -0500 From: Jack Barnett User-Agent: Thunderbird 2.0.0.0 (Windows/20070326) MIME-Version: 1.0 To: "illoai@gmail.com" References: <54316.74.2.36.140.1179892303.squirrel@mail.el.net> <61733.74.64.6.149.1180002606.squirrel@mail.el.net> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kalin@el.net, freebsd-questions@freebsd.org Subject: Re: raid or not raid X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: jackbarnett@gmail.com List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 May 2007 13:31:05 -0000 illoai@gmail.com wrote: > On 24/05/07, kalin mintchev wrote: >> >> so nobody on this list knows anything about raid? >> wrong list? >> >> > hi all.. >> > >> > i have a box in a remote hosting facility that claims that the >> machine has >> > two discs raided in it but df and fstab show only one disc with a >> bunch of >> > slices. >> > under devices there is another name - ad6 - but it's not mounted >> anywhere. >> > the one i see both in df and the fstab is ad4 with one big slice and >> > different partitions.... >> > >> > they insist there are 2 raided discs in tha machine. the os is 5.4 >> and i >> > think at that point the raid drivers were still considered >> 'experimental'. >> > >> > it makes sense to me that if i don't see a second drive in the >> fstab there >> > isn;t any mounting which means that there is no raid going on... >> > >> > is there any other way i can make sure if raid is actually on? >> > would there will be any logs somewhere? >> > the machine has been up for about 2 years and the dmesg is long >> gone... >> > >> > thanks..... >> > > > Lots of people here know plenty about RAID, > but you don't provide very much information. > > If dmesg itself returns none of the startup info, > you can look in /var/log/dmesg.[today|yesterday]. > > /usr/sbin/pciconf can tell you what controller(s) > may be attached. > > A proper RAID will show up as a single device, > just like any hard drive (but different). > > It does seem odd to me that a (supposed) RAID > would show up as /dev/ad4. > > Possibilities: > Your RAID really is on /dev/ad4 and /dev/ad6 is > something unexplained. > Your RAID controller is unsupported in 5.x and > not Doing The Right Thing but somehow still (kind > of) working as a normal [S]ATA controller. > Your RAID controller is unsupported in 5.x and > your hosting company realised this and wired > the shebang up as a normal [S]ATA controller > because they couldn't get FreeBSD to install > otherwise. > There is a RAID controller and there are two disks > connected to it, but the controller was not set up > correctly. > There is a RAID controller and there are two disks > connected to some other controller which might lead > to some interesting phone calls. > Your remote hosting company put a RAID with two > disks in some random machine and someone else > is complaining on some other list about the inverse > of your problem. > Also what type of RAID? If it's Hardware RAID _and_ it's using a 3ware card, you can install tw_cli from /usr/ports/sysutils. It's a nice little utility and will show you the status of your units/ports/drives and how many drives you have on that controller.