From owner-freebsd-fs@FreeBSD.ORG Thu Jul 4 08:06:47 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id A4920B51 for ; Thu, 4 Jul 2013 08:06:47 +0000 (UTC) (envelope-from prvs=1897fed9ea=killing@multiplay.co.uk) Received: from mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) by mx1.freebsd.org (Postfix) with ESMTP id D30BC1604 for ; Thu, 4 Jul 2013 08:06:46 +0000 (UTC) Received: from r2d2 ([82.69.141.170]) by mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (MDaemon PRO v10.0.4) with ESMTP id md50004718274.msg for ; Thu, 04 Jul 2013 09:06:44 +0100 X-Spam-Processed: mail1.multiplay.co.uk, Thu, 04 Jul 2013 09:06:44 +0100 (not processed: message from valid local sender) X-MDDKIM-Result: neutral (mail1.multiplay.co.uk) X-MDRemoteIP: 82.69.141.170 X-Return-Path: prvs=1897fed9ea=killing@multiplay.co.uk X-Envelope-From: killing@multiplay.co.uk X-MDaemon-Deliver-To: freebsd-fs@freebsd.org Message-ID: <36872A46E9BE40688B8F59FD05D4ECE9@multiplay.co.uk> From: "Steven Hartland" To: "Berend de Boer" , "Jeremy Chadwick" References: <6488DECC-2455-4E92-B432-C39490D18484@dragondata.com> <871u7g57rl.wl%berend@pobox.com> <87mwq34emp.wl%berend@pobox.com> <20130703200241.GB60515@in-addr.com> <87k3l748gb.wl%berend@pobox.com> <20130703233631.GA74698@icarus.home.lan> <87d2qz42q4.wl%berend@pobox.com> <20130704010815.GB75529@icarus.home.lan> <8761wr3xxk.wl%berend@pobox.com> Subject: Re: EBS snapshot backups from a FreeBSD zfs file system: zpool freeze? Date: Thu, 4 Jul 2013 09:06:57 +0100 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Cc: freebsd-fs X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Jul 2013 08:06:47 -0000 ----- Original Message ----- From: "Berend de Boer" Jeremy> Also, because nobody seems to warn others of this: if Jeremy> you go the ZFS route on FreeBSD, please do not use Jeremy> features like dedup or compression. While dedup is memory and sometimes cpu hungry, so HW spec should be considered before using it, compression is not so and I've not seen any valid reason not to use it should it fit your uses. We actually use compression extensivily here and we've had nothing but positive results from it so sounds like FUD to me. Regards Steve ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.