From owner-freebsd-current@FreeBSD.ORG Wed Oct 16 14:10:56 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id C1DE73A0; Wed, 16 Oct 2013 14:10:56 +0000 (UTC) (envelope-from satan@ukr.net) Received: from hell.ukr.net (hell.ukr.net [212.42.67.68]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 785DD21EE; Wed, 16 Oct 2013 14:10:56 +0000 (UTC) Received: from satan by hell.ukr.net with local ID 1VWRoL-000BRg-Sb ; Wed, 16 Oct 2013 17:10:53 +0300 Date: Wed, 16 Oct 2013 17:10:53 +0300 From: Vitalij Satanivskij To: Steven Hartland Subject: Re: ZFS secondarycache on SSD problem on r255173 Message-ID: <20131016141053.GA43384@hell.ukr.net> References: <74C1D072-77BB-4D6C-B78F-C8D2731FA0CF@sarenet.es> <1379333192.127359970.ma5jnbc5@fmst-6.ukr.net> <1379334340.567465877.0b1lli6r@fmst-6.ukr.net> <8365CE736DC749DF95D0030A725211F6@multiplay.co.uk> <02549AD9-C456-4E17-927C-B4BCC97F8CC8@freebsd.org> <4AA28730F331444AB13108ABF0CD68B7@multiplay.co.uk> <1379496242.750778745.m0ksff1m@fmst-6.ukr.net> <20131016080100.GA27758@hell.ukr.net> <0023A5B16E614B67A2D8A4A63641D1D8@multiplay.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=windows-1251 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <0023A5B16E614B67A2D8A4A63641D1D8@multiplay.co.uk> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: Vitalij Satanivskij , "Justin T. Gibbs" , freebsd-current@freebsd.org, Borja Marcos , Dmitriy Makarov X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Oct 2013 14:10:56 -0000 Yes We have 15 servers, all of them have problem while using with patch fo ashift, sh we rollback path (for r255173) and all of them works for a week without that's problem's. Yesterday one of of servers was updated to stable/10 (beta1) wich include patch and after around 12 hours of works l2arc begin et errors like that kstat.zfs.misc.arcstats.l2_cksum_bad kstat.zfs.misc.arcstats.l2_io_error For now patch disabled in ower production. Please note we have very heavy load on zfs pool so 90GB arc and 3x180Gb L2arc have very big hit's on it on it. SSD used for cache's is intel ssd 530 series smart for all devices in in normal states's no bad values on it. Steven Hartland wrote: SH> Have you confirmed the ashift changes are the actual cause of this SH> by backing out just those changes and retesting on the same hardware. SH> SH> Also worth checking your disks smart values to confirm there are no SH> visible signs of HW errors. SH> SH> Regards SH> Steve SH> SH> ----- Original Message ----- SH> From: "Vitalij Satanivskij" SH> To: "Dmitriy Makarov" SH> Cc: "Steven Hartland" ; "Justin T. Gibbs" ; "Borja Marcos" ; SH> SH> Sent: Wednesday, October 16, 2013 9:01 AM SH> Subject: Re: ZFS secondarycache on SSD problem on r255173 SH> SH> SH> > Hello. SH> > SH> > Patch brocke cache functionality. SH> > SH> > Look at's Dmitriy's mail from Mon, 07 Oct 2013 21:09:06 +0300 SH> > SH> > With subject ZFS L2ARC - incorrect size and abnormal system load on r255173 SH> > SH> > As patch alredy in head and BETA it's not good. SH> > SH> > Yesterday we update one machine up to beta1 and forgot about patch. So 12 Hours and cache broken... :(( SH> > SH> > SH> > SH> > Dmitriy Makarov wrote: SH> > DM> The attached patch by Steven Hartland fixes issue for me too. Thank you! SH> > DM> SH> > DM> SH> > DM> --- Исходное сообщение --- SH> > DM> От кого: "Steven Hartland" < killing@multiplay.co.uk > SH> > DM> Дата: 18 сентября 2013, 01:53:10 SH> > DM> SH> > DM> ----- Original Message ----- SH> > DM> From: "Justin T. Gibbs" < SH> > DM> SH> > DM> --- SH> > DM> Дмитрий Макаров SH> > DM> _______________________________________________ SH> > DM> freebsd-current@freebsd.org mailing list SH> > DM> http://lists.freebsd.org/mailman/listinfo/freebsd-current SH> > DM> To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" SH> > SH> SH> SH> ================================================ SH> This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. 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