Date: Tue, 18 Nov 2014 13:15:58 +1100 From: Dylan Leigh <research@dylanleigh.net> To: Olivier =?iso-8859-1?Q?Cochard-Labb=E9?= <olivier@cochard.me> Cc: freebsd-fs@freebsd.org, Dylan Leigh <fbsd@dylanleigh.net> Subject: Re: No more free space after upgrading to 10.1 and zpool upgrade Message-ID: <20141118021558.GA30031@exhan.dylanleigh.net> In-Reply-To: <CA%2Bq%2BTcoC4gTPqGc_V3xv%2BcWxJuB2r8YioH_NLfaj=5xwsaXW0w@mail.gmail.com> References: <CA%2Bq%2BTcqo2CL%2B00-4RTD1=WStOSYtawwsZbC1tpZ1G9CbiBp_Dw@mail.gmail.com> <20141116080128.GA20042@exhan.dylanleigh.net> <CA%2Bq%2BTcoC4gTPqGc_V3xv%2BcWxJuB2r8YioH_NLfaj=5xwsaXW0w@mail.gmail.com>
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On Sun, Nov 16, 2014 at 04:10:28PM +0100, Olivier Cochard-Labb=E9 wrote: > On Sun, Nov 16, 2014 at 9:01 AM, Dylan Leigh <fbsd@dylanleigh.net> wrot= e: >=20 > > Could you provide some other details about the pool structure/config, > > including the output of "zpool status"? > > > It's a raidz1 pool build with 5 SATA 2TB drives, and there are 5 zvolum= es > without advanced features (no compression, no snapshot, no de-dup, etc.= ..). > Because it's a raidz1 pool, I know that FREE space reported by a "zpool > list" include redundancy overhead and is bigger than AVAIL space report= ed > by a "zfs list". >=20 > I've moved about 100GB (on hundred GigaByte) of files and after this st= ep > there were only 2GB (two GigaByte) of Free space only: How is it possib= le ? The RAIDZ bit might be significant, if it isn't calculating the overhead properly on old pools for some reason. What were the zpool and FreeBSD versions before/after the upgrade? The output of "zpool history -i storage"/"zdb -h storage" might shed light on any changes. Also try "zdb -bb" - this will go through all block pointers and verify there are no leaks; unfortunately it might take as long as a scrub. :( -- Dylan --=20 Dylan Leigh // VU# s4081906 // www.dylanleigh.net
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