Re: Quota question

2014-11-01 Thread Duncan
Cyril Scetbon posted on Fri, 31 Oct 2014 09:45:23 +0100 as excerpted: Besides the first question, I met an issue using parent groups (see http://pastebin.com/asT5ZFsi). I can't reproduce it all the time, but it seems to appear frequently. Is there any know BUG that can be the source of this

Re: which subvolume is mounted?

2014-11-01 Thread Duncan
Rich Turner posted on Fri, 31 Oct 2014 09:23:27 -0700 as excerpted: let’s first assume the contents of /etc/fstab are either not used or invalid in mounting the subvolumes. given the following ‘df’ command, how do i know which subvolume of the btrfs filesystem on /dev/sda3 is mounted at each

Re: which subvolume is mounted?

2014-11-01 Thread Hugo Mills
On Fri, Oct 31, 2014 at 09:23:27AM -0700, Rich Turner wrote: let’s first assume the contents of /etc/fstab are either not used or invalid in mounting the subvolumes. given the following ‘df’ command, how do i know which subvolume of the btrfs filesystem on /dev/sda3 is mounted at each mount

Re: which subvolume is mounted?

2014-11-01 Thread Hugo Mills
On Fri, Oct 31, 2014 at 09:23:27AM -0700, Rich Turner wrote: let’s first assume the contents of /etc/fstab are either not used or invalid in mounting the subvolumes. given the following ‘df’ command, how do i know which subvolume of the btrfs filesystem on /dev/sda3 is mounted at each mount

Re: request for info on the list of parameters to tweak for PCIe SSDs

2014-11-01 Thread Hugo Mills
On Fri, Oct 31, 2014 at 03:56:15AM -0700, lakshmi_narayanan...@dell.com wrote: Hi, Could you kindly help us with the list of all the btrfs file system parameters , that can be tweaked for the best performance of the PCIe based SSDs ? It should detect the ssd option automatically, but

Re: [offlist]Re: read block failed check_tree_block / Couldn't read chunk tree

2014-11-01 Thread Rene Thomas
Hi Gui, no worries. I'am happy with the btrfs fi sh (with or without patch) I'll try your paches. At the moment I have started to recover the data from an other device where some parts of the data was stored before. Since there was no progress during mkfs I don't now what was affected on the

[GIT PULL] Btrfs fixes

2014-11-01 Thread Chris Mason
Hi Linus, We have a few fixes in my for-linus branch: git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git for-linus Filipe is nailing down some problems with our skinny extent variation, and Dave's patch fixes endian problems in the new super block checks. Filipe Manana (2)

Re: Btrfs raid1 array has issues with rtorrent usage pattern.

2014-11-01 Thread Dan Merillat
On Thu, Oct 30, 2014 at 3:50 AM, Koen Kooi k...@dominion.thruhere.net wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dan Merillat schreef op 30-10-14 04:17: It's specifically BTRFS related, I was able to reproduce it on a bare drive (no lvm, no md, no bcache). It's not bad RAM, I was

btrfs check shows errors - What now?

2014-11-01 Thread KC
Hi. I have a disk corruption problem. I run btrfs check on my system and data partitions, and I got worrying results: http://pastebin.com/hpi57xy6 What should I do now? Can I run btrfs check -repair on it, or does it bear risk of shredding my data? What other options do I have except of

Re: Quota question

2014-11-01 Thread Cyril Scetbon
Hmm I chose btrfs because it's the only one supported by docker that supports quotas for the root user ... Si i need to be sure it's really broken as I must use the version provided by distribution I will use, i.e Ubuntu trusty. I tried simple quotas and it seems to work, but I have an issue

Re: Quota question

2014-11-01 Thread Chris Murphy
On Nov 1, 2014, at 2:53 PM, Cyril Scetbon cyril.scet...@free.fr wrote: Hmm I chose btrfs because it's the only one supported by docker that supports quotas for the root user … https://github.com/docker/docker/issues/3804 I don't think Docker is supporting quotas at all on anything yet. They

Re: RAID1 fails to recover chunk tree

2014-11-01 Thread Robert White
On 10/31/2014 05:15 AM, Zack Coffey wrote: Sadly I think I understand now. So by adding the second drive, BTRFS saw it as an extension of data (ala JBOD-ish?). Even though I thought I was only adding RAID1 for metadata, was also adding to the data storage. I assume that even though

Re: RAID1 fails to recover chunk tree

2014-11-01 Thread Robert White
On 10/30/2014 07:09 PM, Chris Murphy wrote: Is hard to say. If a balance hasn't recently been done, the original device may have a good amount of free space in allocated chunks. I'm pretty sure Btrfs will write first to already allocated chunks with free space before allocating new chunks? So

Re: filesystem corruption

2014-11-01 Thread Robert White
On 10/31/2014 10:34 AM, Tobias Holst wrote: I am now using another system with kernel 3.17.2 and btrfs-tools 3.17 and inserted one of the two HDDs of my btrfs-RAID1 to it. I can't add the second one as there are only two slots in that server. This is what I got: tobby@ubuntu: sudo btrfs