From owner-freebsd-stable@freebsd.org Thu May 9 11:36:45 2019 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 13BB015A649A for ; Thu, 9 May 2019 11:36:45 +0000 (UTC) (envelope-from SRS0=jwo/=TJ=quip.cz=000.fbsd@elsa.codelab.cz) Received: from elsa.codelab.cz (elsa.codelab.cz [94.124.105.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 9C0C78ACDF; Thu, 9 May 2019 11:36:43 +0000 (UTC) (envelope-from SRS0=jwo/=TJ=quip.cz=000.fbsd@elsa.codelab.cz) Received: from elsa.codelab.cz (localhost [127.0.0.1]) by elsa.codelab.cz (Postfix) with ESMTP id 5C30928417; Thu, 9 May 2019 13:36:41 +0200 (CEST) Received: from illbsd.quip.test (ip-62-24-92-232.net.upcbroadband.cz [62.24.92.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by elsa.codelab.cz (Postfix) with ESMTPSA id 4F89D28416; Thu, 9 May 2019 13:36:40 +0200 (CEST) Subject: Re: ZFS... To: Dimitry Andric Cc: FreeBSD-STABLE Mailing List References: <30506b3d-64fb-b327-94ae-d9da522f3a48@sorbs.net> <5ED8BADE-7B2C-4B73-93BC-70739911C5E3@sorbs.net> <2e4941bf-999a-7f16-f4fe-1a520f2187c0@sorbs.net> <20190430102024.E84286@mulder.mintsol.com> <41FA461B-40AE-4D34-B280-214B5C5868B5@punkt.de> <20190506080804.Y87441@mulder.mintsol.com> <08E46EBF-154F-4670-B411-482DCE6F395D@sorbs.net> <33D7EFC4-5C15-4FE0-970B-E6034EF80BEF@gromit.dlib.vt.edu> <7D18A234-E7BF-4855-BD51-4AE2253DB1E4@sorbs.net> <805ee7f1-83f6-c59e-8107-4851ca9fce6e@quip.cz> From: Miroslav Lachman <000.fbsd@quip.cz> Message-ID: <5de7f3d3-b34c-0382-b7d4-b7e38339649b@quip.cz> Date: Thu, 9 May 2019 13:36:42 +0200 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:52.0) Gecko/20100101 Firefox/52.0 SeaMonkey/2.49.3 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 9C0C78ACDF X-Spamd-Bar: +++++ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [5.60 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_ALL(0.00)[]; MX_GOOD(-0.01)[cached: elsa.codelab.cz]; RCPT_COUNT_TWO(0.00)[2]; SUBJ_ALL_CAPS(0.45)[6]; FORGED_SENDER(0.30)[000.fbsd@quip.cz,SRS0=jwo/=TJ=quip.cz=000.fbsd@elsa.codelab.cz]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:42000, ipnet:94.124.104.0/21, country:CZ]; FROM_NEQ_ENVFROM(0.00)[000.fbsd@quip.cz,SRS0=jwo/=TJ=quip.cz=000.fbsd@elsa.codelab.cz]; MID_RHS_MATCH_FROM(0.00)[]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_SPAM_SHORT(0.97)[0.969,0]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; DMARC_NA(0.00)[quip.cz]; AUTH_NA(1.00)[]; NEURAL_SPAM_MEDIUM(1.00)[1.000,0]; IP_SCORE(1.00)[ip: (0.69), ipnet: 94.124.104.0/21(0.34), asn: 42000(3.87), country: CZ(0.08)]; NEURAL_SPAM_LONG(1.00)[1.000,0]; RCVD_IN_DNSWL_NONE(0.00)[4.105.124.94.list.dnswl.org : 127.0.10.0]; R_SPF_NA(0.00)[] X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 May 2019 11:36:45 -0000 Dimitry Andric wrote on 2019/05/09 13:02: > On 9 May 2019, at 10:32, Miroslav Lachman <000.fbsd@quip.cz> wrote: [...] >> Disks are OK, monitored by smartmontools. There is nothing odd, just the long long scrubs. This machine was started with 4x 1TB (now 4x 4TB) and scrub was slow with 1TB disks too. This machine - HP ML110 G8) was my first machine with ZFS. If I remember it well it was FreeBSD 7.0, now running 11.2. Scrub was / is always about one week. (I tried some sysctl tuning without much gain) > > Unfortunately https://svnweb.freebsd.org/changeset/base/339034, which > greatly speeds up scrubs and resilvers, was not in 11.2 (since it was > cut at r334458). > > If you could update to a more recent snapshot, or try the upcoming 11.3 > prereleases, you will hopefully see much shorter scrub times. Thank you. I will try 11-STABLE / 11.3-PRERELEASE soon and let you know about the difference. Kind regards Miroslav Lachman