From owner-freebsd-fs@freebsd.org Thu Sep 8 16:37:01 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 DB98ABD2B25 for ; Thu, 8 Sep 2016 16:37:01 +0000 (UTC) (envelope-from rm@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by mx1.freebsd.org (Postfix) with ESMTP id CDA85DFD; Thu, 8 Sep 2016 16:37:01 +0000 (UTC) (envelope-from rm@FreeBSD.org) Received: from [127.0.0.1] (localhost [IPv6:::1]) by freefall.freebsd.org (Postfix) with ESMTP id B2F791C77; Thu, 8 Sep 2016 16:37:00 +0000 (UTC) (envelope-from rm@FreeBSD.org) Subject: Re: ZFS-8000-8A: assistance needed To: Gary Palmer , Ruslan Makhmatkhanov References: <11f2a660-304d-4a50-bab8-ec2a2737b3a4@FreeBSD.org> <20160908121617.GA42278@in-addr.com> <75465e13-7992-4172-ab40-51b2e462a400@FreeBSD.org> <20160908132427.GB42278@in-addr.com> Cc: Maurizio Vairani , freebsd-fs@freebsd.org From: Ruslan Makhmatkhanov Message-ID: <51014b52-b521-7539-d7f5-9b265a85cd52@FreeBSD.org> Date: Thu, 8 Sep 2016 19:35:37 +0300 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <20160908132427.GB42278@in-addr.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Sep 2016 16:37:01 -0000 Gary Palmer wrote on 09/08/2016 16:24: > On Thu, Sep 08, 2016 at 03:35:50PM +0300, Ruslan Makhmatkhanov wrote: >> Gary Palmer wrote on 09/08/2016 15:16: >>> On Thu, Sep 08, 2016 at 02:46:04PM +0300, Ruslan Makhmatkhanov wrote: >>>> Maurizio Vairani wrote on 09/08/2016 10:39: >>>>> Hi Ruslan, >>>>> >>>>> Il 06/09/2016 22:00, Ruslan Makhmatkhanov ha scritto: >>>>>> NAME STATE READ WRITE CKSUM >>>>>> storage_ssd ONLINE 0 0 59.3K >>>>>> mirror-0 ONLINE 0 0 0 >>>>>> gpt/drive-06 ONLINE 0 0 0 >>>>>> gpt/drive-07 ONLINE 0 0 9 >>>>>> mirror-1 ONLINE 0 0 119K >>>>>> gpt/drive-08 ONLINE 0 0 119K >>>>>> gpt/drive-09 ONLINE 0 0 119K >>>>>> cache >>>>>> mfid5 ONLINE 0 0 0 >>>>>> mfid6 ONLINE 0 0 0 >>>>>> >>> >>>> So, I'm interested how you detect that particular drives (with gpt >>>> labels drive-07, drive-08 and drive-09) are failing? >>> >>> The CKSUM errors from the zpool status output. They are >>> indicative of underlying problems. gpt/drive-07 has a low count >>> so it's possibly not a major problem, but gpt/drive-08 and >>> gpt/drive-09 both have a significant number. I find it a bit >>> curious that both drives in the mirror have similar number of >>> errors. Possibly indicating data pathing errors. >> >> Ah, ok, thanks. I wasn't able to find meaning of CKSUM field description >> in zpool manpage, so didn't got it at the time. Not sure about data >> pathing errors though. > > I mean something in the data path for both drives that is common > to those two drives and not the others. If they're all attached to > the same controller, maybe they're on a different SAS port or cable > or something to the other drives. > > Regards, > > Gary We'll check that. Thank you, Gary! -- Regards, Ruslan T.O.S. Of Reality