From owner-freebsd-arm@freebsd.org Mon Mar 21 18:18:13 2016 Return-Path: Delivered-To: freebsd-arm@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 8DE32AD8E2C for ; Mon, 21 Mar 2016 18:18:13 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Received: from www.zefox.net (www.zefox.net [69.239.235.194]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 47BC41C97 for ; Mon, 21 Mar 2016 18:18:13 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Received: from www.zefox.net (localhost [127.0.0.1]) by www.zefox.net (8.14.9/8.14.5) with ESMTP id u2LHxqX0083949; Mon, 21 Mar 2016 10:59:52 -0700 (PDT) (envelope-from fbsd@www.zefox.net) Received: (from fbsd@localhost) by www.zefox.net (8.14.9/8.14.5/Submit) id u2LHxqFB083948; Mon, 21 Mar 2016 10:59:52 -0700 (PDT) (envelope-from fbsd) Date: Mon, 21 Mar 2016 10:59:52 -0700 From: bob prohaska To: freebsd-arm@freebsd.org Subject: Effect of partitioning on wear-leveling Message-ID: <20160321175952.GA83908@www.zefox.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.3i X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Mar 2016 18:18:13 -0000 To the extent that FreeBSD on ARM uses wear leveling on flash devices, does the partition layout have any effect on how or if wear leveling works? The puzzle at hand is an RPI2 with /boot/msdos and / on the microSD card and /usr on USB flash. /var and /tmp will be on microSD, but it's not clear whether they should be in the / partition or isolated. Thanks for reading, and any guidance! bob prohaska