Date: Thu, 9 May 2019 13:36:42 +0200 From: Miroslav Lachman <000.fbsd@quip.cz> To: Dimitry Andric <dim@FreeBSD.org> Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: ZFS... Message-ID: <5de7f3d3-b34c-0382-b7d4-b7e38339649b@quip.cz> In-Reply-To: <E980141F-48D9-4870-8FE1-9A5610F12826@FreeBSD.org> References: <30506b3d-64fb-b327-94ae-d9da522f3a48@sorbs.net> <CAGMYy3tYqvrKgk2c==WTwrH03uTN1xQifPRNxXccMsRE1spaRA@mail.gmail.com> <5ED8BADE-7B2C-4B73-93BC-70739911C5E3@sorbs.net> <d0118f7e-7cfc-8bf1-308c-823bce088039@denninger.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> <A535026E-F9F6-4BBA-8287-87EFD02CF207@sorbs.net> <a82bfabe-a8c3-fd9a-55ec-52530d4eafff@denninger.net> <a1b78a63-0ef1-af51-4e33-a9a97a257c8b@sorbs.net> <CAMPTd_A7RYJ12pFyY4TzbXct82kWfr1hcEkSpDg7bjP25xjJGA@mail.gmail.com> <d91cf5@sorbs.net> <7D18A234-E7BF-4855-BD51-4AE2253DB1E4@sorbs.net> <E68600B3-F856-4909-AB6E-BDFCD8AAAB43@punkt.de> <805ee7f1-83f6-c59e-8107-4851ca9fce6e@quip.cz> <E980141F-48D9-4870-8FE1-9A5610F12826@FreeBSD.org>
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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
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