PS: the only snapshots are of apt-mirror, which doesn't have large files. On Fri, Jan 23, 2015 at 8:58 AM, Gareth Pye <gar...@cerberos.id.au> wrote: > What are the chances that splitting all the large files up into sub > gig pieces, finish convert, then recombine them all will work? > > On Wed, Jan 21, 2015 at 3:03 PM, Chris Murphy <li...@colorremedies.com> wrote: >> On Tue, Jan 20, 2015 at 4:04 PM, Gareth Pye <gar...@cerberos.id.au> wrote: >>> Yeah, we don't have that much space spare :( >>> >>> File system has been going strong from when it was created with early >>> RAID5 code, then converted to RAID10 with kernel 3.12. >>> >>> There aren't any nocow files to my knowledge but there are plenty of >>> files larger than a gig on the file system. The first few results from >>> logical-resolve have been for files in the 1G~2G range, so that could >>> be some sticky spaghetti. >> >> Are any of those big files in a snapshot? The snapshotting may be >> pinning a bunch of large extents, so even if it seems like the volume >> has enough space, it might actually be running out of space. All I can >> think of is progressively removing the files that are implicated in >> the conversion failure. That could mean just deleting older snapshots >> that you probably don't need, progressively getting to the point where >> you migrate those files off this fs to another one, and then delete >> them (all instances in all subvol/snapshots) and just keep trying. >> >> Is a btrfs check happy? Or does it complain about anything? >> >> I've had quite good luck just adding a drive (two drives for raid1/10 >> volumes) to an existing btrfs volume, they don't have to be drdb, they >> can be local block devices, either physical drives or LV's. I've even >> done this with flash drives (kinda scary and slow but it worked). >> >> I'd still suggest contingency planning in case this volume becomes >> temperamental and you have no choice but to migrate it elsewhere. >> Better to do it on your timetable than the filesystem's. >> >> -- >> Chris Murphy > > > > -- > Gareth Pye > Level 2 MTG Judge, Melbourne, Australia > "Dear God, I would like to file a bug report"
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