Date: Sun, 5 Jan 2014 16:41:10 +0100 From: "O. Hartmann" <ohartman@zedat.fu-berlin.de> To: Adam Vande More <amvandemore@gmail.com> Cc: FreeBSD CURRENT <freebsd-current@freebsd.org>, Peter Jeremy <peter@rulingia.com> Subject: Re: ZFS command can block the whole ZFS subsystem! Message-ID: <20140105164110.44318739@thor.walstatt.dyndns.org> In-Reply-To: <CA%2BtpaK1nFmMypqUu0V-M7N-yGWO3%2BCsPf9QBYd4Bs-86B-2msg@mail.gmail.com> References: <20140103130021.30569db4@thor.walstatt.dyndns.org> <FC618C2B94D9425EAE5C11FEF2042F49@multiplay.co.uk> <20140103171457.0fbf0cd4@telesto> <20140103181622.GA61275@dan.emsphone.com> <20140103202535.6e72eebd@thor.walstatt.dyndns.org> <20140104221004.GA72376@server.rulingia.com> <20140104232642.141402dd@thor.walstatt.dyndns.org> <20140104231426.GC72376@server.rulingia.com> <20140105091138.725ff0c2@thor.walstatt.dyndns.org> <CA%2BtpaK1nFmMypqUu0V-M7N-yGWO3%2BCsPf9QBYd4Bs-86B-2msg@mail.gmail.com>
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--Sig_/7IBzDnU/powH9tkn5ef7iuS Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Sun, 5 Jan 2014 06:43:18 -0600 Adam Vande More <amvandemore@gmail.com> wrote: > On Sun, Jan 5, 2014 at 2:11 AM, O. Hartmann > <ohartman@zedat.fu-berlin.de>wrote: >=20 > > On Sun, 5 Jan 2014 10:14:26 +1100 > > Peter Jeremy <peter@rulingia.com> wrote: > > > > > On 2014-Jan-04 23:26:42 +0100, "O. Hartmann" > > > <ohartman@zedat.fu-berlin.de> wrote: > > > >zfs list -r BACKUP00 > > > >NAME USED AVAIL REFER MOUNTPOINT > > > >BACKUP00 1.48T 1.19T 144K /BACKUP00 > > > >BACKUP00/backup 1.47T 1.19T 1.47T /backup > > > > > > Well, that at least shows it's making progress - it's gone from > > > 2.5T to 1.47T used (though I gather that has taken several > > > days). Can you pleas post the result of > > > zfs get all BACKUP00/backup > > > > > > > Here we go: > > > > > > NAME PROPERTY VALUE SOURCE > > BACKUP00/backup type filesystem - > > BACKUP00/backup creation Fr Dez 20 23:17 2013 - > > BACKUP00/backup used 1.47T - > > BACKUP00/backup available 1.19T - > > BACKUP00/backup referenced 1.47T - > > BACKUP00/backup compressratio 1.00x - > > BACKUP00/backup mounted no - > > BACKUP00/backup quota none default > > BACKUP00/backup reservation none default > > BACKUP00/backup recordsize 128K default > > BACKUP00/backup mountpoint /backup local > > BACKUP00/backup sharenfs off default > > BACKUP00/backup checksum sha256 local > > BACKUP00/backup compression lz4 local > > BACKUP00/backup atime on default > > BACKUP00/backup devices on default > > BACKUP00/backup exec on default > > BACKUP00/backup setuid on default > > BACKUP00/backup readonly off default > > BACKUP00/backup jailed off default > > BACKUP00/backup snapdir hidden default > > BACKUP00/backup aclmode discard default > > BACKUP00/backup aclinherit restricted default > > BACKUP00/backup canmount on default > > BACKUP00/backup xattr on default > > BACKUP00/backup copies 1 default > > BACKUP00/backup version 5 - > > BACKUP00/backup utf8only off - > > BACKUP00/backup normalization none - > > BACKUP00/backup casesensitivity sensitive - > > BACKUP00/backup vscan off default > > BACKUP00/backup nbmand off default > > BACKUP00/backup sharesmb on local > > BACKUP00/backup refquota none default > > BACKUP00/backup refreservation none default > > BACKUP00/backup primarycache all default > > BACKUP00/backup secondarycache all default > > BACKUP00/backup usedbysnapshots 0 - > > BACKUP00/backup usedbydataset 1.47T - > > BACKUP00/backup usedbychildren 0 - > > BACKUP00/backup usedbyrefreservation 0 - > > BACKUP00/backup logbias latency default > > BACKUP00/backup dedup on local > > >=20 > As already described by Dan and perhaps not followed up on: dedup > requires at very large amount of memory. Assuming 32GB is sufficient > is most likely wrong. >=20 > What does zdb -S BACKUP00 say? That command is stuck for 2 hours by now ... >=20 > Also I will note you were asked if the ZFS FS in question had dedup > enabled. You replied with a response from an incorrect FS. >=20 >=20 >=20 --Sig_/7IBzDnU/powH9tkn5ef7iuS Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (FreeBSD) iQEcBAEBAgAGBQJSyX0aAAoJEOgBcD7A/5N8oSMIAM6AF3MLA4eaV8aAN266foHH gF9VynN6q5qcW9YtFP5wH0zSsXk8SU635c5u98OJMjdJPryo02ySEDquFTaPnAAM Q+R/m9J76di+bGt2yxeRcwvpBSBgE8TZdETXT23doeMq08MY1ohyyKyKuCGd4Yew O9acx0dSnfH85crIfn1C7YA782Ar8eWMizFqvAMejhyivjpyYVT+aqGSi+KlCmy7 dosEFM+VClKlzoXjS61g4SvaKlPsVEpE1MHd35IBD3CbVFwiBnGLvCl2aeXmw2Rh FBskvXVguknhAxxXwvgze6cp7GRw5WpGHMDhpFTRey4OiktPDts6RbbZdWTu3no= =GdAn -----END PGP SIGNATURE----- --Sig_/7IBzDnU/powH9tkn5ef7iuS--
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