Hello,
I want to report that I have the same problem as Michael Russo, except in my
case there is definitely *a lot* of free space.
I had ext4 on a 1Tb LVM mirror. The filesystem was 96% full, with many multi-Gb
files. I successfully converted it into btrfs, removed ext2_saved subvolume, but
did
Alright! After doing:
cd /mymedia; find . -type f | while read file; do mv -v "$file" /dev/shm;
f2=`basename "$file"`; mv -v "/dev/shm/$f2" "$file"; done
I finally moved whatever files out of the "single" allocation and back onto the
new RAID1 profile:
oot@ossy:~# /usr/src/btrfs-progs/btrfs f
e files I care about probably aren't
in this list so I'll do it for all the files on the system (since I can't find
out what files are in those block groups).
-Original Message-
From: Hugo Mills [mailto:h...@carfax.org.uk]
Sent: Friday, March 07, 2014 3:02 AM
To: M
Hugo Mills posted on Fri, 07 Mar 2014 08:02:13 + as excerpted:
> On Fri, Mar 07, 2014 at 01:13:53AM +, Michael Russo wrote:
>> Duncan <1i5t5.duncan cox.net> writes:
>>
>> > But if you're not using compression, /that/ can't explain it...
>> >
>> >
>> Ha! Well while that was an interesti
On Fri, Mar 07, 2014 at 01:13:53AM +, Michael Russo wrote:
> Duncan <1i5t5.duncan cox.net> writes:
>
> > But if you're not using compression, /that/ can't explain it...
> >
>
> Ha! Well while that was an interesting discussion of fragmentation,
> I am only using the default mount options he
Duncan <1i5t5.duncan cox.net> writes:
> But if you're not using compression, /that/ can't explain it...
>
Ha! Well while that was an interesting discussion of fragmentation,
I am only using the default mount options here and so no compression.
The only reason I'm really even looking at the fra
On Mar 5, 2014, at 3:13 PM, Michael Russo wrote:
> Chris Murphy colorremedies.com> writes:
>
>> Did you do a defrag and balance after ext4>btrfs conversion,
>> but before data/metadata profile conversion?
>
> No I didn't, as I thought it was only optional and didn't realize
> it might later
Michael Russo posted on Wed, 05 Mar 2014 22:13:10 + as excerpted:
> Chris Murphy colorremedies.com> writes:
>
>> You could also try a full defragment by specifying -r on the mount
>> point with a small -t value to effectively cause everything to be
>> subject to defragmenting. If this still
Chris Murphy colorremedies.com> writes:
> Did you do a defrag and balance after ext4>btrfs conversion,
> but before data/metadata profile conversion?
No I didn't, as I thought it was only optional and didn't realize
it might later affect my ability to change profiles.
--
To unsubscribe fr
Chris Murphy colorremedies.com> writes:
> You could also try a full defragment by specifying -r on the mount point
> with a small -t value to effectively cause everything to be subject
> to defragmenting. If this still doesn't permit soft rebalance, then maybe
> filefrag can find files that have
On Mar 4, 2014, at 5:27 PM, Mike Russo wrote:
> I'm sure this is due to the ext4 conversion, but that means the utility is
> making a btrfs filesystem that later can't be converted to another profile
> for some reason.
https://btrfs.wiki.kernel.org/index.php/Conversion_from_Ext3
"But still,
On Mar 4, 2014, at 5:27 PM, Mike Russo wrote:
> Chris Murphy colorremedies.com> writes:
>
>>> How can I find out what file is on the block group that
>>> it's having a problem with?
>>
>> I think that's btrfs-debug-tree -b ? But don't hold me to that.
>> I haven't done enough debugging to f
Chris Murphy colorremedies.com> writes:
> > How can I find out what file is on the block group that
> > it's having a problem with?
>
> I think that's btrfs-debug-tree -b ? But don't hold me to that.
> I haven't done enough debugging to find files
> from block numbers. Another that might be re
On Mar 4, 2014, at 11:54 AM, Michael Russo wrote:
> Chris Murphy colorremedies.com> writes:
>> Based on my reading of the man page, I think it's expected.
>> You either need -s -l or -t.
>
> Ok, although the man page uses [ ] instead of < > and something
> does happen if I don't add them. But
Chris Murphy colorremedies.com> writes:
> Based on my reading of the man page, I think it's expected.
>You either need -s -l or -t.
Ok, although the man page uses [ ] instead of < > and something
does happen if I don't add them. But if I use "-t 1" wouldn't that
get everything?
>
> > Now I've
On Mar 4, 2014, at 8:55 AM, Michael Russo wrote:
> Hugo Mills carfax.org.uk> writes:
>
>> This is just a guess, but you might have some large (>1GB)
> extents
>> in there that span across multiple chunks. I'd suggest running a
> btrfs
>> defrag on any particularly big files and see if that
Hugo Mills carfax.org.uk> writes:
>This is just a guess, but you might have some large (>1GB)
extents
> in there that span across multiple chunks. I'd suggest running a
btrfs
> defrag on any particularly big files and see if that helps the
situation.
>
Doing this is definitely helping, b
On Mar 3, 2014, at 1:50 PM, Michael Russo wrote:
> Oh yeah, it was definitely a problem with either the drives
> or the external enclosure, which was converting USB to SATA
> and mirroring the drives internally (it was a WD MyBook
> Mirror Edition). There was a problem with one of the drives
Chris Murphy colorremedies.com> writes:
>
> > Chris Murphy colorremedies.com> writes:
> Gotcha. I think Hugo has the best next step. Defragment.
I think this is going to work. I cancelled a partial defrag
and did another move attempt, and this time
5GB got moved! So I'm going to let the whol
On Mar 3, 2014, at 12:24 PM, Michael Russo wrote:
> Chris Murphy colorremedies.com> writes:
>
>> It might be worth adding enospc_debug as a mount option
>
> These messages only appear when I mount with enospc_debug.
Gotcha. I think Hugo has the best next step. Defragment.
> As for whether
Chris Murphy colorremedies.com> writes:
> It might be worth adding enospc_debug as a mount option
These messages only appear when I mount with enospc_debug. I
included them as examples but I can post the full output later if
needed. As for whether btrfs-convert should be recommended, I
mean
On Mar 3, 2014, at 11:24 AM, Michael Russo wrote:
> Duncan <1i5t5.duncan cox.net> writes:
>>
>> That allows rollback if desired, but does tie up some some space with the
>> automatically created btrfs "snapshot" that contains the ext3/4 metadata
>> and untouched data.
>
> Nope, I definite
On Mon, Mar 03, 2014 at 05:23:43PM +, Mike Russo wrote:
> Hi guys -
> I'm trying to convert a disk from single (/dev/sdc1) to RAID1 (dev/sdd1), and
> the filesystem was previously ext4 but the conversion seemed to go just fine,
> and I have no snapshots. System and metadata convert, and almos
Duncan <1i5t5.duncan cox.net> writes:
>
> That allows rollback if desired, but does tie up some some space with the
> automatically created btrfs "snapshot" that contains the ext3/4 metadata
> and untouched data.
Nope, I definitely deleted the snapshots, running btrfs sub list
gives me noth
Mike Russo posted on Mon, 03 Mar 2014 17:23:43 + as excerpted:
> I'm trying to convert a disk from single (/dev/sdc1) to RAID1
> (dev/sdd1), and the filesystem was previously ext4 but the conversion
> seemed to go just fine, and I have no snapshots. System and metadata
> convert, and almost al
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