From owner-freebsd-hackers@FreeBSD.ORG Tue Apr 22 01:40:26 2014 Return-Path: Delivered-To: hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 0190D71B for ; Tue, 22 Apr 2014 01:40:26 +0000 (UTC) Received: from nes.txt.com (nes.txt.com [IPv6:2001:470:8148::20]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id B50561110 for ; Tue, 22 Apr 2014 01:40:25 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by nes.txt.com (Postfix) with ESMTP id B111C47F for ; Mon, 21 Apr 2014 18:38:36 -0700 (PDT) Received: from nes.txt.com ([127.0.0.1]) by localhost (nes.txt.com [127.0.0.1]) (maiad, port 10024) with ESMTP id 03618-03 for ; Mon, 21 Apr 2014 18:38:36 -0700 (PDT) Received: from mpro.cmhome (unknown [67.42.3.9]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by nes.txt.com (Postfix) with ESMTPSA id 41D1847E for ; Mon, 21 Apr 2014 18:38:36 -0700 (PDT) From: Louis Kowolowski Content-Type: multipart/signed; boundary="Apple-Mail=_37B458BB-7487-4002-9BCC-C6822210199D"; protocol="application/pgp-signature"; micalg=pgp-sha1 Message-Id: <63190425-672D-4A05-AAB0-B19A49EDB739@cryptomonkeys.org> Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1877.9\)) Subject: Re: Pointer to info on migrating from UFS2 -> ZFS? Date: Mon, 21 Apr 2014 18:40:05 -0700 References: <20140421191528.GI1321@albert.catwhisker.org> To: hackers@freebsd.org In-Reply-To: <20140421191528.GI1321@albert.catwhisker.org> X-Mailer: Apple Mail (2.1877.9) X-Content-Filtered-By: Mailman/MimeDel 2.1.17 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Apr 2014 01:40:26 -0000 --Apple-Mail=_37B458BB-7487-4002-9BCC-C6822210199D Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 I=92d probably suggest a couple things: * VirtualBox (or equiv) for setting up test environments that are easy = to create and destroy. For all the beginning stuff I can think of, you = should be able to do just fine with a virtual environment. VMs with a = half dozen virtual disks that are 2G ea come in handy with playing with = ZFS. * The (FreeBSD) handbook section (on ZFS) walks through examples, but = doesn=92t cover the theory * For reading material, I=92d probably start here: = http://open-zfs.org/wiki/Documentation I haven=92t looked at the ZFS admin guide since around 2007, there will = be some divergence between Soracle and the rest of the ZFS community, = but most of it should apply. Likewise, the ZFS best practices, and = performance tuning. On Apr 21, 2014, at 12:15 PM, David Wolfskill = wrote: > At work, we have several machines presently running FreeBSD/amd64 > stable/9 @r257221 that are used for building software within a jail. > They currently use UFS2 + soft updates (no journaling). >=20 > I am interested in finding out how the behavior of one of these = systems > changes if I replace the UFS2 FS where the builds are actually done = with > a ZFS FS. >=20 > I would prefer to avoid the need to touch the machine(s) for this > exercise, so I'm interested in trying the exercise using the same > hardware -- though possibly configured somewhat differently. >=20 > What would be a good place to start my research? [Caveat: While I've > used UFS longer than ... some readers of this message have been alive, > I've not administered ZFS before.] >=20 > Thanks! >=20 > Peace, > david > --=20 > David H. Wolfskill david@catwhisker.org > Taliban: Evil cowards with guns afraid of truth from a 14-year old = girl. >=20 > See http://www.catwhisker.org/~david/publickey.gpg for my public key. -- Louis Kowolowski louisk@cryptomonkeys.org Cryptomonkeys: = http://www.cryptomonkeys.com/ Making life more interesting for people since 1977 --Apple-Mail=_37B458BB-7487-4002-9BCC-C6822210199D Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- iQGcBAEBAgAGBQJTVch/AAoJEBdbgTdYmh/mjCUL/3xk0/fVFGW7vMqvwEV0ibO2 jqOOyWsgxnQHa57ixRlyJoBw6kC+MHe3QfuvJFeQnOrv/KInYonzwC4wWadfN0d7 hJbCBkEh4jPp2VgK+C1sabJMhrrXuWBCeb/nKjKicV3/OUlvzPcKJ4m+8tRThQEf fMW9m29KUF4G/IL+9vOUE7XN1KlrkT243gsnAyjyCcEF6Qg9R2iVy07vhu0Sdeaw 5ZyHhZ7D+g6ag1270l+9OHA6yCiAOMttnv+aAoX1SEXXdJnuDtJn6h1HH0kkiQe2 ypKlckCFHBx3kFmr1/x6CxJoHkYMpzx6xgw9PkUK2bgyrCzmj+6qcpVEGNfBTNdM KNXd7XdPw2Wi6u9rb0Lml3W87fHnG/C9/m+gVCG9h8DyE9FndcNHS+ii3pmRMTQV zYlHCtuuHDUkD0mplY5/1ApiKRE0dr/gQXJol4DwTMSyQMZSLUht2o4Ug88en6/1 z5tIIHj+SovZhtnNA+HriQH+QNRCYukGmomZIsxoOg== =WFMF -----END PGP SIGNATURE----- --Apple-Mail=_37B458BB-7487-4002-9BCC-C6822210199D--