Date: Fri, 19 Feb 2016 15:09:51 +0100 From: Michelle Sullivan <michelle@sorbs.net> To: Steven Hartland <killing@multiplay.co.uk> Cc: freebsd-fs@freebsd.org Subject: Re: Zfs heavy io writing | zfskern txg_thread_enter Message-ID: <56C7222F.2090009@sorbs.net> In-Reply-To: <56C72155.10500@sorbs.net> References: <CAM1TVW-yOvU6VM19PadD5ygsv2-Vb-_8T7SKjcsP7Ov0Q5A5SQ@mail.gmail.com> <56C70365.1050800@sorbs.net> <56C70AB0.6050400@multiplay.co.uk> <56C71350.3020602@sorbs.net> <56C71DD8.3040505@multiplay.co.uk> <56C72155.10500@sorbs.net>
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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/
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