Date: Fri, 10 May 2019 13:55:09 +1000 From: Michelle Sullivan <michelle@sorbs.net> To: Bob Bishop <rb@gid.co.uk> Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: ZFS... Message-ID: <6B39E185-CAF7-4B7C-990E-BC56F37F3940@sorbs.net> In-Reply-To: <CF5AC143-945F-47AD-A3F4-6A3FEC0FFFDB@gid.co.uk> References: <30506b3d-64fb-b327-94ae-d9da522f3a48@sorbs.net> <56833732-2945-4BD3-95A6-7AF55AB87674@sorbs.net> <3d0f6436-f3d7-6fee-ed81-a24d44223f2f@netfence.it> <17B373DA-4AFC-4D25-B776-0D0DED98B320@sorbs.net> <70fac2fe3f23f85dd442d93ffea368e1@ultra-secure.de> <70C87D93-D1F9-458E-9723-19F9777E6F12@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>
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Michelle Sullivan http://www.mhix.org/ Sent from my iPad > On 09 May 2019, at 21:27, Bob Bishop <rb@gid.co.uk> wrote: > > >> On 9 May 2019, at 12:17, Michelle Sullivan <michelle@sorbs.net> wrote: >> >> >> >> Michelle Sullivan >> http://www.mhix.org/ >> Sent from my iPad >> >>> On 09 May 2019, at 17:46, Patrick M. Hausen <hausen@punkt.de> wrote: >>> >>> Hi all, >>> >>>> Am 09.05.2019 um 00:55 schrieb Michelle Sullivan <michelle@sorbs.net>: >>>> No, one disk in the 16 disk zRAID2 ... previously unseen but it could be the errors have occurred in the last 6 weeks... everytime I reboot it started resilvering, gets to 761M resilvered and then stops. >>> >>> 16 disks in *one* RAIDZ2 vdev? That might be the cause of your insanely >>> long scrubs. In general it is not recommended though I cannot find the >>> source for that information quickly just now. >> >> I have seen posts on various lists stating don’t go over 8.. I know people in Oracle, the word is it should matter... who do you believe? > > Inter alia it depends on the quality/bandwidth of disk controllers. Interestingly, just got windows 7 installed on a usb stick with the windows based zfs recovery tool... now scrubs and resilvers report around 70MB/s on all versions of FreeBSD I have tried (9.3 thru 13-CURRENT), indeed even on my own version with the Broadcom native SAS driver replacing the FreeBSD one... Results are immediately different.. it *says* it’s using 1.6/1.7 cores, ~2G Ram and getting a solid 384MBps (yes B not b) with 100% disk io.... that’s a massive difference. This is using the windows 7 (sp1) built in driver... I can only guess that has to be pci bus handling differences or the throughput report is wrong. (Note “solid” it is fluctuating between 381 and 386, but 97% (ish - Ie a guess) of the time at 384) > >> Michelle >> >>> >>> Kind regards, >>> Patrick >>> -- >>> punkt.de GmbH Internet - Dienstleistungen - Beratung >>> Kaiserallee 13a Tel.: 0721 9109-0 Fax: -100 >>> 76133 Karlsruhe info@punkt.de http://punkt.de >>> AG Mannheim 108285 Gf: Juergen Egeling >>> >> _______________________________________________ >> freebsd-stable@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-stable >> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > > > -- > Bob Bishop t: +44 (0)118 940 1243 > rb@gid.co.uk m: +44 (0)783 626 4518 > > > > > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"home | help
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