From owner-freebsd-fs@freebsd.org Fri Feb 19 14:09:56 2016 Return-Path: Delivered-To: freebsd-fs@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 91039AAE644 for ; Fri, 19 Feb 2016 14:09:56 +0000 (UTC) (envelope-from michelle@sorbs.net) Received: from hades.sorbs.net (mail.sorbs.net [67.231.146.200]) by mx1.freebsd.org (Postfix) with ESMTP id 84EF111C9 for ; Fri, 19 Feb 2016 14:09:55 +0000 (UTC) (envelope-from michelle@sorbs.net) MIME-version: 1.0 Content-transfer-encoding: 8BIT Content-type: text/plain; charset=windows-1252 Received: from isux.com (firewall.isux.com [213.165.190.213]) by hades.sorbs.net (Oracle Communications Messaging Server 7.0.5.29.0 64bit (built Jul 9 2013)) with ESMTPSA id <0O2S00F4IT089Q00@hades.sorbs.net> for freebsd-fs@freebsd.org; Fri, 19 Feb 2016 06:16:59 -0800 (PST) Message-id: <56C7222F.2090009@sorbs.net> Date: Fri, 19 Feb 2016 15:09:51 +0100 From: Michelle Sullivan User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.24) Gecko/20100301 SeaMonkey/1.1.19 To: Steven Hartland Cc: freebsd-fs@freebsd.org Subject: Re: Zfs heavy io writing | zfskern txg_thread_enter References: <56C70365.1050800@sorbs.net> <56C70AB0.6050400@multiplay.co.uk> <56C71350.3020602@sorbs.net> <56C71DD8.3040505@multiplay.co.uk> <56C72155.10500@sorbs.net> In-reply-to: <56C72155.10500@sorbs.net> X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Feb 2016 14:09:56 -0000 Links to the grabs inline because the list seems to have converted html->plaintext Michelle Sullivan wrote: > Steven Hartland wrote: > >> On 19/02/2016 13:06, Michelle Sullivan wrote: >> >>> Steven Hartland wrote: >>> >>>> On 19/02/2016 11:58, Michelle Sullivan wrote: >>>> >>>>> Niccolò Corvini wrote: >>>>> >>>>>> Hi, first time here! >>>>>> We are having a problem with a server running FreeBsd 9.1 with ZFS >>>>>> on a >>>>>> >>>>>> >>>>> You should upgrade to a supported version first... 9.3 would probably >>>>> be the best (rather than 10.x) as it's still supported and uses the >>>>> same >>>>> ABI (ie you should need to reinstall all your ports/packages - though >>>>> you should because it sometimes breaks things - at least check for >>>>> broken things :) .) >>>>> >>>>> If you're not familiar "freebsd-update -r 9.3-RELEASE upgrade" will >>>>> help >>>>> you do it without too many problems. >>>>> >>>> 9.3 is still ancient, and while "supported" its not in active >>>> development, and to be blunt no one will be interested in helping to >>>> diagnose any actual issue on something so old. >>>> >>> So supported is not really supported... Is that an official position? >>> >> Supported for 9.x, which is a "Legacy Release", I would say is >> supported for security and other critical issues only, which is the >> same for pretty much every project / product out there. >> > Oh, it's legacy is it? Funny you should say that ... "Production = > Legacy" then...? > > > ----> http://flashback.sorbs.net/packages/freebsd-page.jpg > > Oh wait... it's support ... lets look at what the "support lifecycle" > says on it.. > > > > ----> http://flashback.sorbs.net/packages/freebsd-support.jpg > > > > > >>>> 10.x has a totally different ZFS IO scheduler for example, so its >>>> differently for most workloads. >>>> >>> But the user is on 9.x not 10.x and 10.x changes a lot more than just >>> the ZFS IO scheduler. If this is a production machine, then an upgrade >>> to 9.3 may be easier as it would require less regression testing.... Or >>> is this another case of people don't run FreeBSD in production >>> environments so it doesn't matter...? >>> >> Yes but 9.x is already legacy and becomes unsupported in December of >> this year, so the process of migration to 10.x should be well on the >> way by now tbh. >> > > So is 10.1 and 10.2 then... Oh so that will be why you're telling them > to upgrade to a non-supported beta release....! > See: http://flashback.sorbs.net/packages/freebsd-support.jpg > Seriously...! > > > (Sorry for the html email with jpegs embedded, hate it myself - > especially to mailing lists, but a picture is worth a 1000 words > especially when screen grabbed from a few minutes ago...) > > -- Michelle Sullivan http://www.mhix.org/