Hej guys! Thanks for your input on the issue this far.
Too my knowledge raid1 in btrfs means 2 copies of each piece of data independent of the amount of disks used. So 4 x 2,73tb would result in a totaal storage of roughly 5,5tb right? Shouldn't this be more then enough? btw, here is the output for df: http://paste.debian.net/128932/ ---------------------------------------- > Date: Mon, 27 Oct 2014 12:49:15 +0800 > From: quwen...@cn.fujitsu.com > To: li...@colorremedies.com > CC: jverb...@hotmail.com; linux-btrfs@vger.kernel.org > Subject: Re: Problem converting data raid0 to raid1: enospc errors during > balance > > > -------- Original Message -------- > Subject: Re: Problem converting data raid0 to raid1: enospc errors > during balance > From: Chris Murphy <li...@colorremedies.com> > To: Qu Wenruo <quwen...@cn.fujitsu.com> > Date: 2014年10月27日 12:40 >> On Oct 26, 2014, at 7:40 PM, Qu Wenruo <quwen...@cn.fujitsu.com> wrote: >> >>> Hi, >>> >>> Although I'm not completely sure, but it seems that, you really ran out of >>> space. >>> >>> [1] Your array won't hold raid1 for 1.97T data >>> Your array used up 1.97T raid0 data, it takes 1.97T for raid0. >>> But if converted to 1.97T, it will occupy 1.97T X2 = 3.94T. >>> Your array are only 2.73T, it is too small to contain the data. >> I'm not understanding. The btrfs fi show, shows 4x 2.73TiB devices, so that >> seems like it's a 10+TiB array. >> >> There's 2.04TiB raid0 data chunks, so roughly 500GiB per device, yet 1.94TiB >> is reported used per device by fi show. Confusing. >> >> Also it's still very confusing: Data, RAID1: total=2.85TiB, used=790.46GiB >> whether this means 2.85TiB out of 10TiB is allocated, or if it's twice that >> due to raid1. I can't ever remember this presentation detail, so again the >> secret decode ring where the UI doesn't expressly tell us what's going on is >> going to continue to be a source of confusion for users. >> >> >> Chris Murphy > Oh, I misread the output.... > > That turns strange now.... > BTW what's the output of 'df' command? > > Thanks, > Qu >
