,
-d find dir,
- -r numroot objectid,
- -c ignore case in regular expression,
- -m regexp regular expression to match,
- -l list roots,
NULL
};
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net
, for example.
Hugo.
--
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--- I'm all for giving people enough rope to shoot themselves in ---
the foot -- Andreas Dilger
.
Hugo.
[1] https://btrfs.wiki.kernel.org/index.php/Data_Structures
[2]
http://git.darksatanic.net/cgi/gitweb.cgi?p=btrfs-gui.git;a=blob;f=btrfsgui/btrfs.py;h=0941de1efeadb81576edf1c7c84da28805310a92;hb=aba25f9efe7bcdb99e8cfa38e703c4b0739c6af9
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=== Hugo Mills: hugo@... carfax.org.uk
non-interoperable with
the default tools. This is probably enough to ensure that it'll get
fixed fairly quickly in this case (because the users that care about
the feature will complain it's not working right).
My conclusion: go with user xattrs.
Hugo.
--
=== Hugo Mills: hugo
? ;) )
Hugo.
--
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--- Q: What goes, Pieces of seven! Pieces of seven!? A: ---
A parroty error
(at which point, the modified blocks are no longer
shared).
Hugo.
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--- I don't like the look of it, I tell you. Well, stop
for not keeping up with them.
defrag, with my snapshots, would be a good reason for me...)
Hugo.
[1] http://kernel.ubuntu.com/~kernel-ppa/mainline/
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On Thu, Feb 21, 2013 at 10:10:57AM -0600, Eric Sandeen wrote:
On 2/21/13 9:10 AM, Swâmi Petaramesh wrote:
Le 21/02/2013 16:01, Hugo Mills a écrit :
That's a success. The return code for defrag is broken, and for some
reason returns 20 on success.
Thanks for the quick reply Hugo. So
On Thu, Feb 21, 2013 at 06:03:17PM +0100, Swâmi Petaramesh wrote:
Le 21/02/2013 17:38, Hugo Mills a écrit :
Plus, if something does go wrong with your FS, and you're running an
older kernel, you'll get limited amounts of sympathy, because quite a
lot of the problems people encounter
On Thu, Feb 21, 2013 at 06:47:28PM +0100, Swâmi Petaramesh wrote:
Le 21/02/2013 18:25, Hugo Mills a écrit :
Correct. But btrfs isn't at that stage yet. It's getting visibly
closer, but it's not quite there. Hence the very strong recommendation
to keep up with the latest code. Hugo
On Wed, Feb 20, 2013 at 02:15:52PM +, Mike Fleetwood wrote:
On 20 February 2013 13:05, Audrius Butkevicius
audrius.butkevic...@elastichosts.com wrote:
On 01/02/2013 10:30, Hugo Mills wrote:
On Fri, Feb 01, 2013 at 09:59:49AM +, Audrius Butkevicius wrote:
Add '-b' and '--bytes
On Mon, Feb 18, 2013 at 10:44:06AM +0530, Hemanth Kumar wrote:
On Sat, Feb 16, 2013 at 2:29 AM, Hugo Mills h...@carfax.org.uk wrote:
Here's a question -- what are you testing? (Not just here, but in
general, with your test infrastructure)
There are (at least) three classes of tests
On Sat, Feb 16, 2013 at 06:55:09PM +1100, Dave Chinner wrote:
On Fri, Feb 15, 2013 at 08:59:06PM +, Hugo Mills wrote:
Hi, Hemanth,
Here's a question -- what are you testing? (Not just here, but in
general, with your test infrastructure)
There are (at least) three
.
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--- If it's December 1941 in Casablanca, what time is it ---
in New York
? Or is there a more
simple approach?
Right now, yes, that's what you'll have to do. Note that the set of
snapshots won't be atomic, although each snapshot itself is atomic.
Recursive snapshots aren't implemented yet, but are on the list of
things to do.
Hugo.
--
=== Hugo Mills: hugo
tell if it's ~1.64TB copied or 2.6TB.
Looks like /dev/sdi1 isn't actually being written to -- it should
be the same allocation as /dev/sde1.
Hugo.
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the block
device.
We had someone on IRC a day or two ago who had done exactly this.
They're not the only one -- I can recall seeing at least one other
person who managed to mkfs.btrfs on an existing filesystem.
Hugo.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk
On Thu, Feb 14, 2013 at 11:05:39AM -0700, Chris Murphy wrote:
On Feb 14, 2013, at 1:59 AM, Hugo Mills h...@carfax.org.uk wrote:
Data, RAID1: total=2.66TB, used=2.66TB
This is the amount of actual useful data (i.e. what you see with du
or ls -l). Double this (because it's RAID-1
select-super under rescue.
Given that it can easily do more harm than good, it might not be the
best place for it..
Thanks,
Ilya
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help deal with the issue.
Hugo.
(*) Btrfs: rework the overcommit logic to be based on the total size
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--- What do you give the man who has
.
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--- What's so bad about being drunk? You ask a glass of water
...@gmail.com wrote:
Hi Hugo,
Thanks.
I was having some issues with my priviledges, and sorting them out has
worked.
Thanks a ton,
Atri
On Sat, Feb 2, 2013 at 9:50 PM, Hugo Mills h...@carfax.org.uk wrote:
On Sat, Feb 02, 2013 at 08:56:20PM +0530, Atri Sharma wrote:
Hi all,
I am
not *that* different.
Hugo.
I am running some tests for seeing the locking trends when mass
creation and deletion of files take place.
Thanks,
Atri
On Sat, Feb 2, 2013 at 11:32 PM, Hugo Mills h...@carfax.org.uk wrote:
On Sat, Feb 02, 2013 at 11:06:23PM +0530, Atri Sharma wrote:
Hi
;
- print_one_uuid(fs_devices);
+ print_one_uuid(fs_devices, rawbytes);
}
printf(%s\n, BTRFS_BUILD_VERSION);
return 0;
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.
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--- What do you give the man who has everything? -- Penicillin is ---
a good start
vennlig hilsen / kind regards
Christopher Thorjussen
System Administrator, VCP4/VCP5
The Online Backup Company AS
http://www.onlinebackupcompany.no
Backup isn't the real concern. Restoring normal business is.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk
it runs out of space.
My hope would be overall performance between that of the two devices, and
closer to that of the SSD.
We don't have any kind of hot-data management yet, but it's on the
list of things we'd like to have at some point.
Hugo.
--
=== Hugo Mills: hugo@... carfax.org.uk
| 5 +
dir-test.c| 5 +
find-root.c | 5 +
ioctl-test.c | 6 ++
mkfs.c| 5 +
quick-test.c | 6 ++
restore.c | 5 +
21 files changed, 109 insertions(+)
--
=== Hugo Mills: hugo
/search?q=btrfs-show
http://codesearch.debian.net/search?q=btrfs-vol
http://codesearch.debian.net/search?q=btrfsctl
suggest that there's very little impact over the rest of the system as
well.
Hugo.
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inline in marc.info
=)
What mail client to do you use?
git send-email (for this kind of thing, anyway).
Hugo.
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--- What part
,
+ BTRFS_SEND_C_PUNCH,
BTRFS_SEND_C_TRUNCATE,
BTRFS_SEND_C_CHMOD,
BTRFS_SEND_C_CHOWN,
--
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--- I gave up smoking, drinking and sex
On Thu, Jan 24, 2013 at 08:13:34PM +0800, Miao Xie wrote:
Onthu, 24 Jan 2013 11:58:13 +, Hugo Mills wrote:
On Thu, Jan 24, 2013 at 07:39:17PM +0800, Miao Xie wrote:
On thu, 24 Jan 2013 10:53:17 +0200, Alex Lyakas wrote:
Hi Chen,
with all due respect, what do you mean by I see
Out of interest, how big are these devices?
Hugo.
[snip]
I booted again and did both the mk.btrfs and the mount manually and i
got the same error.
Is it a known issue?
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which does the above automatically and includes a suitably-generated
version.h in the tarball.
Hugo.
and
mkfs.btrfs -V
mkfs.btrfs, part of Btrfs Btrfs v0.19
There must be a way to reliably just have one Btrfs and I will
look into it.
Gene
--
=== Hugo Mills: hugo@... carfax.org.uk
On Mon, Jan 14, 2013 at 10:00:41AM -0800, Marc MERLIN wrote:
On Mon, Jan 14, 2013 at 05:41:55PM +, Hugo Mills wrote:
On Mon, Jan 14, 2013 at 09:32:50AM -0800, Marc MERLIN wrote:
I made a mistake and copied data in the root of a new btrfs filesystem.
I created a subvolume, and used mv
to be possible.
Is this correct, and the only way would be backup/mkfs with -l/restore?
Correct, you can't change the metadata block size once the FS has
been created.
Hugo.
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, but as I understand
it, there's been some work in the kernel (swap over NFS) which lays
down some of the underlying infrastructure we'd need to support
swapfiles on btrfs, but we don't have anything beyond that. I don't
know of anyone working on it, either.
Hugo.
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=== Hugo Mills: hugo
the size of the underlying device.
Hugo.
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--- Great oxymorons of the world, no. 6: Mature Student ---
signature.asc
Description
. btrfs fi resize, then fdisk).
Hugo.
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--- Klytus! Are your men on the right pills? Maybe you should ---
execute
information in your kernel logs.
I know you all recommend later kernels, I'm upgrading things as fast as I can.
Glad to hear it. :)
Hugo.
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before zero'ing logs
[snip]
That information may also be helpful in conjunction with the
btrfs-image dump of a broken FS. I'm not sure how much help it is on
its own (but thanks for providing it anyway).
Hugo.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk
fi show' for short.
Indeed. btrfs-show, btrfs-vol and btrfsctl have been deprecated for
quite some time (well over a year), and they're not well maintained.
Hugo.
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was there before. This is unsurprising.
Hugo.
What works:
btrfs filesystem label /dev/sdb mylabel
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--- What part of gestalt don't you
and as
designed.
Hugo.
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--- You're never alone with a rubber duck... ---
signature.asc
Description: Digital signature
without mounting the FS first, everything
you've reported here is working as it should.
Hugo.
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--- This chap Anon is writing some perfectly
, and I'm afraid you're using the wrong tools for the job
you're trying to do.
Hugo.
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--- O tempura! O moresushi
btrfs-progs installation? (Any distribution package
with a date before the end of March 2012 is definitely ancient --
there's still some of them out there).
Hugo.
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on a btrfs volume without mounting the volume?
No. (Well, in theory the code is possible, but there's nothing I'm
aware of that will do it)
Hugo.
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.
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--- But people have always eaten people, / what else is there to ---
eat? / If the Juju had meant us not to eat people / he
well.
You want send/receive. It's in the mainline kernel, and you'll need
a recent userspace, but it allows you to transfer subvolumes cleanly
and losslessly between filesystems.
Hugo.
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says, not in this pull
request, but it should be ready for Friday.
Hugo.
--
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--- We demand rigidly defined areas of doubt and uncertainty
On Tue, Dec 18, 2012 at 01:20:20PM +0200, Brendan Hide wrote:
On 2012/12/17 06:23 PM, Hugo Mills wrote:
On Mon, Dec 17, 2012 at 04:51:33PM +0100, Sebastien Luttringer wrote:
Hello,
snip
I get the feeling that RAID1 only allow one disk removing. Which is more
a RAID5 feature.
The RAID-1
to a more recent kernel, and getting that pushed to
mainline, as it's more likely to be useful in the future, and useful
to more people.
Hugo.
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On Tue, Dec 18, 2012 at 02:35:21PM +, Hugo Mills wrote:
On Tue, Dec 18, 2012 at 06:11:55PM +0400, Eugene Crosser wrote:
I have a board based on PLX7821 aka OX820 ARM SoC. It is not
Oh, I forgot to mention -- there's some problems with the btrfs
userspace tools on ARM, related
know how I can help.
Regards,
Atri
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--- Comic Sans goes into a bar, and the barman says, We don't ---
serve
been said before (and it hasn't been stable enough
for release before). I think Chris was going to leave the n-copies
RAID-1 feature for a later release, and just get RAID-5/6 out first.
Hugo.
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weren't added by any of the core
developers. Nobody's published concrete tests *either* way yet, and
those comments are one person's opinion, as far as I'm aware (and note
that they don't actually quote sources, results, or even personal
experience).
YMMV.
Hugo.
--
=== Hugo Mills: hugo
to identify which subvolume to mount
with -o subvolid=...
Hugo.
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--- emacs: Emacs Makes A Computer Slow. ---
signature.asc
#Integration_repository_.28btrfs-next.29
It's regarded as fairly unstable, so only run it on systems for
testing purposes (or if josef tells you it's OK and will fix one of
your problems).
Hugo.
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On Thu, Dec 13, 2012 at 04:50:54AM +0530, Nirbheek Chauhan wrote:
On Thu, Dec 13, 2012 at 4:21 AM, Hugo Mills h...@carfax.org.uk wrote:
Two things:
1) That tree is generally only ever updated for pull requests to Linus
during the merge window. Would that it were otherwise, but I
fragmentation here.
If you mean, will there be a defrag that does as well as it can
despite the limitation above, and which doesn't split snapshots into
separate copies, then yes -- there's already patches out for that, but
they've had a couple of problems.
Hugo.
--
=== Hugo Mills: hugo
ever turn up as a real subvolume ID
internally, and is mapped to the same subvolume as subvolid=5 with a
piece of special-case code that liubo showed.
Hugo.
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On Mon, Dec 03, 2012 at 10:52:41AM +0100, Aastha Mehta wrote:
On 2 December 2012 23:46, Hugo Mills h...@carfax.org.uk wrote:
On Sun, Dec 02, 2012 at 11:17:26PM +0100, Aastha Mehta wrote:
I am looking at btrfs to understand some of its features. One of them
is the snapshot feature. Please
of +C on the
database files.
Hugo.
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--- No! My collection of rare, incurable diseases! Violated! ---
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Description: Digital
(subvolid=5).
Everything else in the filesystem lives within that. However, you can
have as many subvolumes as you like below that, and in whatever
directories or subvolumes you want.
Hugo.
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For archival purposes, it's probably better to put the whole thing
inline in the text of your mail. This also makes it far easier to make
comments on it, should anyone feel moved to do so.
Hugo.
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ago, this function was not aviliable. If there were test
version, I am willing to test it.
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--- emacs: Eighty Megabytes And Constantly
mention of the caches from
your fstab and kernel command line before you next mount the FS.
Hugo.
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--- Great oxymorons of the world
On Sun, Nov 11, 2012 at 04:28:54PM +0100, Swâmi Petaramesh wrote:
Le 11/11/2012 16:20, Hugo Mills a écrit :
You only need to mount with space_cache once, and after that it's
sticky. What's probably happening is that you're mounting with
space_cache, which rebuilds the cache. Then, if you
just a little bit inconsistent
The closest thing is btrfsck. That's about as picky as we've got to
date.
What exactly is your use-case for this requirement?
Hugo.
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backups and be
prepared to use them)?
Hugo.
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--- emacs: Eighty Megabytes And Constantly Swapping. ---
signature.asc
Description
On Tue, Nov 06, 2012 at 01:47:02PM +, Michael Kjörling wrote:
On 6 Nov 2012 12:48 +, from h...@carfax.org.uk (Hugo Mills):
There are also some caveats: while the FS should always be
consistent, the latest transaction write may not have been completed,
so you could potentially
, though.
Hugo.
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--- Computer Science is not about computers, any more than ---
astronomy is about telescopes
.
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--- You're never alone with a rubber duck... ---
signature.asc
Description: Digital signature
== === == === ===
Total 1.31TB 8.00MB 28.00GB ×2 4.00MB 8.00MB ×20.00
Used 1.31TB 0.00 5.65GB ×2 0.00 152.00KB ×2
Also, I don't know if you could use libblkid, but it finds more
descriptive names than dm-NN (thanks to some smart sorting logic).
--
=== Hugo
On Fri, Nov 02, 2012 at 11:23:14PM +, Gabriel wrote:
On Fri, 02 Nov 2012 22:06:04 +, Hugo Mills wrote:
On Fri, Nov 02, 2012 at 07:05:37PM +, Gabriel wrote:
On Fri, 02 Nov 2012 13:02:32 +0100, Goffredo Baroncelli wrote:
On 2012-11-02 12:18, Martin Steigerwald wrote
/u creationFri Nov 2 5:24 2012 -
rpool/u user:label Some test filesystem local
Don't we already have an equivalent to that with user xattrs?
Hugo.
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to the metadata trees through
the TREE_SEARCH ioctl. It should be possible to walk through the
extents of a given file, and (I think) follow back-refs from the
extent back to the other files that share it.
There's no simple code to do that right now, though.
Hugo.
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=== Hugo Mills: hugo
million pages,
or 320 GiB of total disk space.
Hugo.
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--- I always felt that as a C programmer, I
On Tue, Oct 30, 2012 at 10:14:12PM +, Hugo Mills wrote:
On Wed, Oct 31, 2012 at 05:40:25AM +0800, ching wrote:
On 10/30/2012 08:17 PM, cwillu wrote:
If there is a lot of small files, then the size of metadata will be
undesirable due to deduplication
Yes, that is a fact
of the progs.
sudo mount -t btrfs /dev/sda /mnt/disk/
Could you try with -o recovery?
That's worth a try as a first step.
Hugo.
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=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
is detected, yes.
If there's a bad block, and the FS happens to read the good copy
first, it won't fix it, because it hasn't tried reading the bad copy
yet.
Hugo.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http
On Sun, Oct 28, 2012 at 02:36:24PM +0100, Martin Steigerwald wrote:
Am Sonntag, 28. Oktober 2012 schrieb Hugo Mills:
On Sun, Oct 28, 2012 at 02:23:51PM +0100, Martin Steigerwald wrote:
Am Sonntag, 28. Oktober 2012 schrieb Ronnie Collinson:
In a raid1 situation, it will also rewrite
if
so desired (using the nodatasum mount option), but nothing about
what the file system code does or is supposed to do in the face of a
checksum mismatch.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http
is probably the better option. IMO. Eggshell blue is
good enough. :)
Hugo.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
--- Some days, it's just not worth gnawing through the straps
.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
--- This chap Anon is writing some perfectly lovely stuff ---
at the moment
-undiscovered reservation problem, in which
case you get to see Josef scream loudly and hide under his desk,
gibbering.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
--- If it ain't broke
switch storage types on the fly, so you could at least
start with RAID-1, and then restripe to RAID-5 (or -6) when it's
stable enough for you. This assumes that you can manage to use RAID-1
in the first place and expand later.
Hugo.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net
On Mon, Oct 22, 2012 at 10:42:18AM -0600, Chris Murphy wrote:
Thanks for the response Hugo,
On Oct 22, 2012, at 3:19 AM, Hugo Mills h...@carfax.org.uk wrote:
I'm not entirely sure what's going on here(*), but it looks like an
awkward interaction between the unequal sizes of the devices
On Mon, Oct 22, 2012 at 01:36:31PM -0600, Chris Murphy wrote:
On Oct 22, 2012, at 11:18 AM, Hugo Mills h...@carfax.org.uk wrote:
It's more like a balance which moves everything that has some (part
of its) existence on a device. So when you have RAID-0 or RAID-1 data,
all of the related
may then allow you to mount it again without the -o
ro.
Hugo.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
--- Great oxymorons of the world, no. 6: Mature Student
?
Fibs is a slang term for lies. Probably not ideal.
Hugo.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
--- Strive for apathy
be an issue with RAID a-la btrfs?
I have (some of(*)) the disks in my 8-drive RAID-1 btrfs array set
to spin down after 10 minutes of no use. I've not had a problem with
it so far. So I'd say it's not an issue from my limited testing.
Hugo.
(*) Damn you, Samsung!
--
=== Hugo Mills: hugo
.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
--- The most exciting phrase to hear in science, the one that ---
heralds new discoveries, is not Eureka
On Wed, Oct 03, 2012 at 06:17:53PM +0200, Goffredo Baroncelli wrote:
On 10/03/2012 01:56 PM, Hugo Mills wrote:
Looks good. Only a few comments, inline.
On Wed, Oct 03, 2012 at 01:43:14PM +0200, Goffredo Baroncelli wrote:
[snip]
Also, use kB, MB, GB, TB for powers-of-ten based units
it not an error to do so, but I'm happy either way.
Hugo.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
--- He's a nutcase, you know. There's no getting away from
.
Ultimately, I think the bikeshed should be turquoise.
Hugo.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
--- Python is executable pseudocode; perl
Hi, Goffredo,
On Fri, Sep 28, 2012 at 07:27:16PM +0200, Goffredo Baroncelli wrote:
On 09/28/2012 10:58 AM, Hugo Mills wrote:
On Fri, Sep 28, 2012 at 09:17:59AM +0600, Roman Mamedov wrote:
On Thu, 27 Sep 2012 23:02:35 +0200
Goffredo Baroncellikreij...@libero.it wrote
hard to deal with in scripts. :)
(But they do have plumbing options, to use the git terminology,
so I'd be happy with having a parsable output option).
Hugo.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http
somewhere which
will give you access to new kernels without too much trouble.
Hugo.
(*) Some of the enterprise distributions do have backported btrfs
fixes in their apparently older kernels.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from
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