From owner-freebsd-questions@freebsd.org Fri Aug 28 11:37:04 2015 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 445109C4FD1 for ; Fri, 28 Aug 2015 11:37:04 +0000 (UTC) (envelope-from freebsd@qeng-ho.org) Received: from bede.qeng-ho.org (bede.qeng-ho.org [217.155.128.241]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "fileserver.home.qeng-ho.org", Issuer "fileserver.home.qeng-ho.org" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id DF1B7101A for ; Fri, 28 Aug 2015 11:37:03 +0000 (UTC) (envelope-from freebsd@qeng-ho.org) Received: from arthur.home.qeng-ho.org (arthur.home.qeng-ho.org [172.23.1.2]) by bede.home.qeng-ho.org (8.15.2/8.15.2) with ESMTP id t7SBb0XT015470; Fri, 28 Aug 2015 12:37:00 +0100 (BST) (envelope-from freebsd@qeng-ho.org) Subject: Re: Replacing Drive with SSD To: Doug Hardie , FreeBSD - References: From: Arthur Chance Message-ID: <55E047DC.40800@qeng-ho.org> Date: Fri, 28 Aug 2015 12:37:00 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Aug 2015 11:37:04 -0000 On 28/08/2015 07:59, Doug Hardie wrote: > I am having to replace a drive with a SSD. Normally if I were > replacing it with another drive, I would hook up the new drive > to the computer and just use dd to copy everything (system would > be quiescent). Can I do the same with a SSD or does it need to > be setup differently? This is a boot drive (i.e., the only drive > in the system). The system is currently working fine, but the > drive temp is starting to go up so I want to replace it before > anything bad happens. As others have said, SSDs look pretty much like spinning drives. The one thing to be aware of is TRIM, presuming your SSD supports it. If you're using zfs, TRIM is automatically enabled (on 10.x, not sure about earlier releases), but if you use ufs you have to enable it on each file system with tunefs -t enable $device However, you might want to check why your disk temperature is rising anyway. Have you checked your fans and any air filters? -- Those who do not learn from computing history are doomed to GOTO 1