space waste bytes: 2859469730
file data blocks allocated: 16171232772096
referenced 13512171663360
What does that tell us?
Greetings,
Hendrik
-- Originalnachricht --
Von: "Hendrik Friedel" <hend...@friedels.name>
An: "Chris Murphy" <li...@colorremedies.com>
Hello again,
before overwriting the filesystem, some last questions:
Maybe
take advantage of the fact it does read only and recreate it. You
could take a btrfs-image and btrfs-debug-tree first,
And what do I do with it?
because there's
some bug somewhere: somehow it became inconsistent,
Hi Chris,
thanks for your reply -especially on a Sunday.
I have a filesystem (three disks with no raid)
So it's data single *and* metadata single?
No:
Data, single: total=8.14TiB, used=7.64TiB
System, RAID1: total=32.00MiB, used=912.00KiB
Metadata, RAID1: total=18.00GiB, used=16.45GiB
ata that I read from the drive is valid or
corrupted
I'd appreciate your help on this.
Greetings,
Hendrik
-- Originalnachricht --
Von: "Hendrik Friedel" <hend...@friedels.name>
An: "Btrfs BTRFS" <linux-btrfs@vger.kernel.org>
Gesendet: 28.08.2016 12:0
Hello,
I have a filesystem (three disks with no raid) that I can still mount
ro, but I cannot check or scrub it.
In dmesg I see:
[So Aug 28 11:33:22 2016] BTRFS error (device sde): parent transid
verify failed on 22168481054720 wanted 1826943 found 1828546
[So Aug 28 11:33:22 2016] BTRFS
Hello,
I am using a raid1 under debian Jessie, because I need to decrease the
likelyhood of unavailability of the system.
Unfortunately I found, that when removing one of the drives, the system
will not boot up. Instead initramfs will show up and tell me that the
root volume could not be
Hello,
from this https://www.spinics.net/lists/linux-btrfs/msg57405.html
I still have damaged btrf file system (the partition was recovered.
Thanks Chris).
When mounting, I get:
[15681.255356] BTRFS info (device sda1): disk space caching is enabled
[15681.255690] BTRFS error (device sda1):
device name = /dev/sda1
superblock bytenr = 67108864
[All bad supers]:
All supers are valid, no need to recover
What would be the next step?
Regards,
Hendrik
-- Originalnachricht --
Von: "Chris Murphy" <li...@colorremedies.com>
An:
Cc: "H
Hello,
this morning I had to face an unusual prompt on my machine.
I found that the partition table of /dev/sda had vanished.
I restored it with testdisk. It found one partition, but I am quite sure
there was a /boot partition in front of that which was not found.
Now, running btrfsck
Hello,
this morning I had to face an unusual prompt on my machine.
I found that the partition table of /dev/sda had vanished.
I restored it with testdisk. It found one partition, but I am quite sure
there was a /boot partition in front of that which was not found.
Now, running btrfsck
Hello Austin,
thanks for your reply.
Ok, thanks; So, TGMR does not say whether or not the Device is SMR or
not, right?
I'm not 100% certain about that. Technically, the only non-firmware
difference is in the read head and the tracking. If it were me, I'd be
listing SMR instead of TGMR on
Hello and thanks for your replies,
It's a Seagate Expansion Desktop 5TB (USB3). It is probably a
ST5000DM000.
this is TGMR not SMR disk:
TGMR is a derivative of giant magneto-resistance, and is what's been
used in hard disk drives for decades now. With limited exceptions in
recent years and
Hi Thomasz,
@Dave I have added you to the conversation, as I refer to your notes
(https://github.com/kdave/drafts/blob/master/btrfs/smr-mode.txt)
thanks for your reply!
It's a Seagate Expansion Desktop 5TB (USB3). It is probably a ST5000DM000.
this is TGMR not SMR disk:
ture and I should avoid it with BTRFS. I am just surprised,
there is no hint in the wiki with that regards.
Greetings,
Hendrik
> On 15 Jul 2016, at 19:29, Hendrik Friedel <hend...@friedels.name> wrote:
>
> Hello,
>
> I have a 5TB Seagate drive that uses SMR.
>
> I wa
Hello,
I have a 5TB Seagate drive that uses SMR.
I was wondering, if BTRFS is usable with this Harddrive technology. So,
first I searched the BTRFS wiki -nothing. Then google.
* I found this: https://bbs.archlinux.org/viewtopic.php?id=203696
But this turned out to be an issue not related to
1 size 80.00GiB used 66.03GiB path /dev/sdb4
[root@homeserver mnt2]# lsblk | grep sda4
└─sda48:40 103.5G 0 part
Greetings,
Hendrik
On 09.03.2016 22:50, Hugo Mills wrote:
On Wed, Mar 09, 2016 at 10:46:09PM +0100, Hendrik Friedel wrote:
Hello,
I intend to move this subvolume to a new
Hello,
I intend to move this subvolume to a new device.
btrfs fi show /mnt2/Data_Store/
Label: 'Data_Store' uuid: 0ccc1e24-090d-42e2-9e61-d0a1b3101f93
Total devices 1 FS bytes used 47.93GiB
devid1 size 102.94GiB used 76.03GiB path /dev/sdb4
(fi usage at the bottom of this
Hello Chris,
thanks, I appreciate your help
-
1. Install CentOS 7.0 to vda
2. reboot
3. btrfs dev add /dev/vdb /
4. reboot
## works
5. btrfs balance start /
6. reboot
## works
Same thing when starting with CentOS 7.2 media.
This is a NAS product using CentOS 7.2? My only guess
Sorry, I missed this:
> What do you get for rpm -q grub2
grub2-2.02-0.34.el7.centos.x86_64
Greetings,
Hendrik
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Hello Chris,
That's a bit weird. This is BIOS or UEFI system? On UEFI, the prebaked
grubx64.efi includes btrfs, so insmod isn't strictly needed. But on
BIOS it would be.
it is a Virtual-Box-VM. It is a BIOS system
> It might be as simple as manually mounting:
>btrfs dev scan
>btrfs fi show
##
Hello Hugo,
>> Here I am stuck in a recovery prompt.
By far the simplest and most reliable method of doing this is to
use an initramfs with the command "btrfs dev scan" in it somewhere
before mounting. Most of the major distributions already have an
initramfs set up (as does yours, I see),
Hello,
I would like to go the sensible way :-)
But can you hint me how and where to add the btrfs device scan option to the
initramfs?
If btrfs-progs 4.3.1 is installed already, dracut -f will rebuild the
initramfs and should just drag in current tools which will include
'btrfs device scan'.
Hello,
I am running CentOS from a btrfs root.
This worked fine until I added a device to that pool:
btrfs device add /dev/sda3 /
reboot
This now causes the errors:
BTRFS: failed to read chunk tree on sdb3
BTRFS: open_ctree failed
Here I am stuck in a recovery prompt.
btrfs fi show displays
Hello Hugo,
It shouldn't happen, as I understand how the process works. Can you
show the output of btrfs fi df /mnt/__Complete_Disk? Let's just
check that everything is indeed RAID-5 still.
Here we go:
btrfs fi df /mnt/__Complete_Disk
Data, RAID5: total=3.79TiB, used=3.78TiB
System,
used 1.38TiB path /dev/sde
How can only 1.38TiB be used on devid 3?
Greetings,
Hendrik
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, RAID5: total=3.79TiB, used=3.78TiB
System, RAID5: total=32.00MiB, used=416.00KiB
Metadata, RAID5: total=6.46GiB, used=4.85GiB
GlobalReserve, single: total=512.00MiB, used=0.00B
Greetings,
Hendrik
Greetings,
Hendrik
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Hello,
I am struggling to understand the output of btrfs fi df:
btrfs fi df /mnt/__Complete_Disk/
Data, RAID5: total=3.85TiB, used=3.85TiB
System, RAID5: total=32.00MiB, used=576.00KiB
Metadata, RAID5: total=6.46GiB, used=5.14GiB
GlobalReserve, single: total=512.00MiB, used=0.00B
I have three
Mills h...@carfax.org.uk wrote:
On Sat, Aug 01, 2015 at 10:09:35PM +0200, Hendrik Friedel wrote:
Hello,
I converted an array to raid5 by
btrfs device add /dev/sdd /mnt/new_storage
btrfs device add /dev/sdc /mnt/new_storage
btrfs balance start -dconvert=raid5 -mconvert=raid5 /mnt/new_storage
-dconvert=raid5,soft -mconvert=raid5,soft
/mnt/new_storage/
Regards,
Hendrik
On 01.08.2015 22:44, Chris Murphy wrote:
On Sat, Aug 1, 2015 at 2:32 PM, Hugo Mills h...@carfax.org.uk wrote:
On Sat, Aug 01, 2015 at 10:09:35PM +0200, Hendrik Friedel wrote:
Hello,
I converted an array to raid5
Hello,
Looking at the btrfs fi show output, you've probably run out of
space during the conversion, probably due to an uneven distribution of
the original single chunks.
I think I would suggest balancing the single chunks, and trying the
conversion (of the unconverted parts) again:
#
Hello,
I converted an array to raid5 by
btrfs device add /dev/sdd /mnt/new_storage
btrfs device add /dev/sdc /mnt/new_storage
btrfs balance start -dconvert=raid5 -mconvert=raid5 /mnt/new_storage/
The Balance went through. But now:
Label: none uuid: a8af3832-48c7-4568-861f-e80380dd7e0b
Hello,
I recently added a third device to my raid and converted it from raid0
to raid 5 via balance (dconvert, mconvert).
Unfortunately, the new device was faulty. I wrote about this on this
List in size 2.73TiB used 240.97GiB after balance.
Initially the system was very unstable when trying
Hello Donald,
thanks for your reply. I appreciate your help.
I would use recover to get the data if at all possible, then you can
experiment with try to fix the degraded condition live. If you have
any chance of getting data from the pool, you reduce that chance every
time you make a change.
is not touched at all?
Regards,
Hendrik
On 07.07.2015 15:14, Donald Pearson wrote:
That's what it looks like. You may want to try reseating cables, etc.
Instead of mounting and file copy, btrfs restore might be worth a shot
to recover what you can.
On Tue, Jul 7, 2015 at 12:42 AM, Hendrik Friedel
missing.
Watch out, replacing a missing device in RAID 5/6 currently doesn't work
and will cause a kernel BUG(). See my patch series here:
http://www.spinics.net/lists/linux-btrfs/msg44874.html
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Hello,
I started with a raid1:
devid1 size 2.73TiB used 2.67TiB path /dev/sdd
devid2 size 2.73TiB used 2.67TiB path /dev/sdb
Then I added a third device, /dev/sdc1 and a balance
btrfs balance start -dconvert=raid5 -mconvert=raid5 /mnt/__Complete_Disk/
Now the file-system
Hello,
ok, sdc seems to have failed (sorry, I checked only sdd and sdb SMART
values, as sdc is brand new. Maybe a bad assumption, from my side.
I have mounted the device
mount -o recovery,ro
So, what should I do now:
btrfs device delete /dev/sdc /mnt
or
mount -o degraded /dev/sdb /mnt
I
backing up.
Greetings,
Hendrik
-- Originalnachricht--
Von: Donald Pearson
Datum: Mo., 6. Juli 2015 23:49
An: Hendrik Friedel;
Cc: Omar Sandoval;Hugo Mills;Btrfs BTRFS;
Betreff:Re: size 2.73TiB used 240.97GiB after balance
If you can mount it RO, first thing to do is back up
Dear all,
I have very high load when writing/reading from/to two of my btrfs
volumes. One sda1, mounted as /mnt/BTRFS, the other, sdd2/sde2 (raid) as /
sda1 is a 3TB disc, whereas the sdd2/sde2 are small SSDs of 16GB.
I wrote a small script to demonstrate it. It does:
-echo what it will do
?
Regards,
Hendrik
Am 25.03.2014 21:10, schrieb Hugo Mills:
On Tue, Mar 25, 2014 at 09:03:26PM +0100, Hendrik Friedel wrote:
Hi,
Well, given the relative immaturity of btrfs as a filesystem at this
point in its lifetime, I think it's acceptable/tolerable. However, for a
filesystem feted[1
Hi,
Well, given the relative immaturity of btrfs as a filesystem at this
point in its lifetime, I think it's acceptable/tolerable. However, for a
filesystem feted[1] to ultimately replace the ext* series as an assumed
Linux default, I'd definitely argue that the current situation should be
Hello,
I read through the FAQ you mentioned, but I must admit, that I do not
fully understand.
My experience is that it takes a bit of time to soak in. Between time,
previous Linux experience, and reading this list for awhile, things do
make more sense now, but my understanding has
Hello,
I have a file-system on which I cannot write anymore (no space left on
device, which is not true
root@homeserver:~/btrfs/integration/devel# df -h
DateisystemGröße Benutzt Verf. Verw% Eingehängt auf
/dev/sdd230G 24G 5,1G 83% /mnt/test1
)
About the filesystem:
Hello,
thanks for your help, I appreciate your hint.
I think (reboot into the system with the fs mounted as root still
outstanding), it fixed my problem.
I read through the FAQ you mentioned, but I must admit, that I do not
fully understand.
What I am wondering about is, what caused this
Hello,
ok, thanks for the explaination.
I would find a behaviour in which by default all configurations would be
used (i.e. no -c option means that a snapshot of all configurations will
be done) more intuitive.
I'll get used to it though :-)
Greetings,
Hendrik
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Hello,
Just a recommendation about the config names. At least on
openSUSE root is used for /. I would suggest to use home_root
for /root like the pam-snapper module does.
thanks for the advise.
In fact on a previous try I had -by chance- used exactly this
nomenclature. Then I restarted
Hello,
I am not sure, whether this is the right place to ask this question -if
not, please advise.
Ubuntu installs on btrfs, creating subvolumes for the homes (/home), the
root home (/root) and the root (/) named @home, @root and @ respectively.
When I install snapper I configure it like
Hi Chris,
It might be worth finding large files to defragment. See the ENOSPC errors
during raid1 rebalance thread. It sounds like it might be possible for some
fragmented files to be stuck across multiple chunks, preventing conversion.
I moved 400Gb from my other (but full) disc to the
Hi Chris, hi Ducan,
time ./btrfs balance start -dconvert=single,soft /mnt/BTRFS/Video/
ERROR: error during balancing '/mnt/BTRFS/Video/' - No space left on device
There may be more info in syslog - try dmesg | tail
real0m23.803s
user0m0.000s
sys 0m1.070s
dmesg:
[697498.761318]
1.15TB path /dev/sdc1
devid1 size 2.73TB used 1.15TB path /dev/sdb1
(you see that I cleaned up beforehand, so that enough space is
available, generally).
Do you have an idea what could be wrong?
Thanks and Regards,
Hendrik
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Hi Chris,
thanks for your reply.
./btrfs filesystem show /dev/sdb1
Label: none uuid: 989306aa-d291-4752-8477-0baf94f8c42f
Total devices 2 FS bytes used 3.47TiB
devid1 size 2.73TiB used 1.74TiB path /dev/sdb1
devid2 size 2.73TiB used 1.74TiB path /dev/sdc1
I
Hello,
Ok.
I think, I do/did have some symptoms, but I cannot exclude other reasons..
-High Load without high cpu-usage (io was the bottleneck)
-Just now: transfer from one directory to the other on the same
subvolume (from /mnt/subvol/A/B to /mnt/subvol/A) I get 1.2MB/s instead
of 60.
-For
, 0.0%si,
0.0%st
Mem: 3795584k total, 3614088k used, 181496k free, 367820k buffers
Swap: 8293372k total,45464k used, 8247908k free, 2337704k cached
Greetings,
Hendrik
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Hello,
Yes. Here I mount the three subvolumes:
Does scrubbing the volume give any errors?
Last time I did (that was after I discovered the first errors in
btrfsck) scrub, it found no error. But I will re-check asap.
As to the error messages: I do not know how critical those are.
I
Hello,
Kernel version?
3.12.0-031200-generic
It mounts OK with no kernel messages?
Yes. Here I mount the three subvolumes:
dmesg:
[105152.392900] btrfs: device fsid 989306aa-d291-4752-8477-0baf94f8c42f
devid 1
transid 164942 /dev/sdb1
[105152.394332] btrfs:
Hello,
I was wondering whether I am doing something wrong in the way I am
asking/what I am asking.
My understanding is, that btrfsck is not able to fix this error yet. So,
I am surprised, that noone is interested in this, apparently?
Regards,
Hendrik Friedel
Am 07.01.2014 21:38, schrieb
and the same
errors persist.
Greetings,
Hendrik
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Hello,
What messages in dmesg so you get when you use recovery?
I'll find out, tomorrow (I can't access the disk just now).
Here it is:
[90098.989872] btrfs: device fsid 989306aa-d291-4752-8477-0baf94f8c42f
devid 2 transid 162460 /dev/sdc1
That's all. The same in the syslog.
Do you
was, that -o
recovery was used/needed when mounting is impossible. This is not the
case. In fact, the disk does work without obvious problems.
What messages in dmesg so you get when you use recovery?
I'll find out, tomorrow (I can't access the disk just now).
Greetings,
Hendrik
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? How do I find,
which files are stored at these inodes?
Greetings,
Hendrik
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Hello,
I re-post this:
To answer the is it safe to fix question...
In that context, yes, it's safe to btrfsck --repair, because you're
prepared to lose the entire filesystem if worse comes to worse in any
case, so even if btrfsck --repair makes things worse instead of better,
you've not
989306aa-d291-4752-8477-0baf94f8c42f
devid 2 transid 140436 /dev/sdc1
[299525.808277] btrfs: device fsid 989306aa-d291-4752-8477-0baf94f8c42f
devid 1 transid 140436 /dev/sdb1
(repeating several times)
Can we find out, why btrfsck does not fix the errors?
Greetings,
Hendrik
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Hello again,
can someone please help me on this?
Regards,
Hendrik
Am 06.11.2013 07:45, schrieb Hendrik Friedel:
Hello,
sorry, I was totally unaware still being on 3.11rc2.
I re-ran btrfsck with the same result:
./btrfs-progs/btrfsck /dev/sdc1
Checking filesystem on /dev/sdc1
UUID: 989306aa
?
Regards,
Hendrik
Am 05.11.2013 03:03, schrieb cwillu:
On Mon, Nov 4, 2013 at 3:14 PM, Hendrik Friedel hend...@friedels.name wrote:
Hello,
the list was quite full with patches, so this might have been hidden.
Here the complete Stack.
Does this help? Is this what you needed?
[95764.899294] CPU
[btrfs]
[95764.899461] [a00b4eb9] btrfs_put_super+0x19/0x20 [btrfs]
[95764.899493] [a00b754a] btrfs_kill_super+0x1a/0x90 [btrfs]
Need to see the rest of the trace this came from.
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+0x1a/0x90 [btrfs]
Need to see the rest of the trace this came from.
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Hello,
I have noticed that my server experiences high load average when writing
to it. So I checked the file-system and found errors:
./btrfsck /dev/sdc1
Checking filesystem on /dev/sdc1
UUID: 989306aa-d291-4752-8477-0baf94f8c42f
checking extents
checking free space cache
checking fs roots
Thanks for your replies.
I will try.
Greetings,
Hendrik
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Hello,
As stated in the
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Hello,
As stated in the wiki, multiple-device filesystems (e.g. raid 1) will
only mount after a btfs device scan, or if all devices are passed with
the mount options.
I remember, that for Ubuntu 12.04 I changed the initrd. But after a
re-install, I have to do this again, and I don't
Hello,
I'd appreciate your recommendation on this:
I have three hdd with 3TB each. I intend to use them as raid5 eventually.
currently I use them like this:
# mount|grep sd
/dev/sda1 on /mnt/Datenplatte type ext4
/dev/sdb1 on /mnt/BTRFS/Video type btrfs
/dev/sdb1 on /mnt/BTRFS/rsnapshot type
Hello,
I don't see how to change the wiki, but it needs an update:
apt-get build-dep btrfs-tools
-or-
apt-get install uuid-dev libattr1-dev zlib1g-dev libacl1-dev e2fslibs-dev
here libblkid-dev is missing -at least for the latest git version of the
btrfs-progs.
Greetings,
Hendrik
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Hi Chris,
I've been keen for raid5/6 in btrfs since I heard of it.
I cannot give you any feedback, but I'd like to take the opportunity to
thank you -and all contributors (thinking of David for the raid) for
your work.
Regards,
Hendrik
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Hello,
I re-send this message, hoping that someone can give me a hint?
Regards,
Hendrik
Am 18.12.2012 23:17, schrieb Hendrik Friedel:
Hi Mitch, hi all,
thanks for your hint.
I used btrfs-debug-tree now.
With -e, the output is empty. But without -e I do get a bit output file.
When I search
15.12.2012 23:24, schrieb Mitch Harder:
On Sat, Dec 15, 2012 at 1:40 PM, Hendrik Friedel hend...@friedels.name wrote:
Hello Mitch, hello all,
Since btrfs has significant improvements and fixes in each kernel
release, and since very few of these changes are backported, it is
recommended to use
) deleted by me. But I
don't think... nevertheless I cannot exclude.
What I know is the (original) Path of the Data.
Greetings,
Hendrik
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Hello,
Try git://github.com/josefbacik/btrfs-progs
I just spent whole day debugging btrfs-restore, fixing signed / unsigned
comparisons, adding another mirror retry, only to find out it is all
already done in this repository. D'oh!
But it has no --repair option.
Greetings,
Hendrik
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.
It might be interesting for you to try a newer kernel, and use scrub
on this volume if you have the two disks RAIDed.
I will try that.
Greetings,
Hendrik
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more recent, I would
have to compile myself, which I will do, if you suggest to)
Greetings,
Hendrik
Am 06.12.2012 20:09, schrieb Mitch Harder:
On Wed, Dec 5, 2012 at 2:50 PM, Hendrik Friedel hend...@friedels.name wrote:
Dear all,
thanks for developing btrfsck!
Now, I'd like to contribute
where my debugging knowledge ends. Are you interested in
debugging this further, or is it a known bug?
Regards,
Hendrik
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Hendrik Friedel
Auf dem Brink 12
28844 Weyhe
Mobil 0178 1874363
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