Hello,
thank you for your reply.
Here the further information:
root@homeserver:~# uname -a
Linux homeserver 5.4.8 #1 SMP Sun Jan 5 15:39:51 CET 2020 x86_64
GNU/Linux
root@homeserver:~# btrfs --version
btrfs-progs v4.20.2
root@homeserver:~# btrfs filesystem show /srv/DataPool1
Label: 'DataPool1' uuid: c4a6a2c9-5cf0-49b8-812a-0784953f9ba3
Total devices 2 FS bytes used 6.56TiB
devid 1 size 7.28TiB used 7.06TiB path /dev/sdf1
devid 2 size 7.28TiB used 7.06TiB path /dev/sdc1
root@homeserver:~# btrfs filesystem usage -T /srv/DataPool1
Overall:
Device size: 14.55TiB
Device allocated: 14.12TiB
Device unallocated: 439.94GiB
Device missing: 0.00B
Used: 13.12TiB
Free (estimated): 731.00GiB (min: 731.00GiB)
Data ratio: 2.00
Metadata ratio: 2.00
Global reserve: 512.00MiB (used: 0.00B)
Data Metadata System
Id Path RAID1 RAID1 RAID1 Unallocated
-- --------- ------- -------- -------- -----------
2 /dev/sdc1 7.05TiB 15.00GiB 64.00MiB 219.97GiB
1 /dev/sdf1 7.05TiB 15.00GiB 64.00MiB 219.97GiB
-- --------- ------- -------- -------- -----------
Total 7.05TiB 15.00GiB 64.00MiB 439.94GiB
Used 6.55TiB 10.69GiB 1.02MiB
My last knowledge was, that one should not use btrfs check unless asked
to by a developer. Consequently, I rather ask for advice here.
Regards,
Hendrik
------ Originalnachricht ------
Von: "waxhead" <waxhead@xxxxxxxxxxxxxx>
An: "Hendrik Friedel" <hendrik@xxxxxxxxxxxxx>; "Btrfs BTRFS"
<linux-btrfs@xxxxxxxxxxxxxxx>
Gesendet: 15.03.2020 16:49:00
Betreff: Re: the free space cache file is invalid, skip it
First , I am just a regular btrfs user so take what I say with a grain of salt.
However, according to the FAQ here:
https://btrfs.wiki.kernel.org/index.php/FAQ
You should run btrfs check on your filfeystem. This may be a brilliant or horrific idea. You probably want to drop your free space cache file as well ,but wait until a developer answers if you wanna be on the safe side.
If you expect some serious help you should probably post the outputs of these commands and state just for the record what distro you are using and I am sure you will get help soon (the BTRFS list is very friendly).
uname -a
btrfs --version
btrfs filesystem show /mountpoint
btrfs filesystem usage -T /mountpoint
Hendrik Friedel wrote:
Hello,
I see these errors in my syslog:
Mar 15 00:16:31 homeserver kernel: [524589.677551] BTRFS info (device sdf1): the free space cache file (12785106812928) is invalid, skip it
Mar 15 00:16:32 homeserver kernel: [524590.494705] BTRFS info (device sdf1): the free space cache file (12787254296576) is invalid, skip it
Mar 15 00:16:53 homeserver kernel: [524611.371823] BTRFS info (device sdf1): the free space cache file (14405383225344) is invalid, skip it
Mar 15 00:18:18 homeserver kernel: [524696.803108] BTRFS info (device sdf1): the free space cache file (15598377500672) is invalid, skip it
Mar 15 00:18:18 homeserver kernel: [524696.935340] BTRFS info (device sdf1): the free space cache file (15613409886208) is invalid, skip it
Mar 15 00:18:19 homeserver kernel: [524698.074946] BTRFS info (device sdf1): the free space cache file (15643474657280) is invalid, skip it
Mar 15 00:18:19 homeserver kernel: [524698.074952] BTRFS info (device sdf1): the free space cache file (15643474657280) is invalid, skip it
Mar 15 00:18:21 homeserver kernel: [524699.353843] BTRFS info (device sdf1): the free space cache file (15663875751936) is invalid, skip it
Mar 15 00:19:37 homeserver kernel: [524776.142963] BTRFS info (device sdf1): the free space cache file (15062513221632) is invalid, skip it
Mar 15 00:19:38 homeserver kernel: [524776.307788] BTRFS info (device sdf1): the free space cache file (15065734447104) is invalid, skip it
Mar 15 00:19:38 homeserver kernel: [524776.549028] BTRFS info (device sdf1): the free space cache file (15070029414400) is invalid, skip it
Mar 15 00:19:38 homeserver kernel: [524776.675084] BTRFS info (device sdf1): the free space cache file (15071103156224) is invalid, skip it
Mar 15 00:19:38 homeserver kernel: [524777.004195] BTRFS info (device sdf1): the free space cache file (15076471865344) is invalid, skip it
Mar 15 00:19:50 homeserver kernel: [524788.446974] BTRFS info (device sdf1): the free space cache file (15559722795008) is invalid, skip it
Mar 15 00:19:51 homeserver kernel: [524789.965874] BTRFS info (device sdf1): the free space cache file (15570460213248) is invalid, skip it
Mar 15 00:21:59 homeserver kernel: [524918.102725] BTRFS info (device sdf1): the free space cache file (15064660705280) is invalid, skip it
Mar 15 00:25:49 homeserver kernel: [525147.576735] BTRFS info (device sdf1): the free space cache file (15564017762304) is invalid, skip it
Mar 15 00:27:33 homeserver kernel: [525251.725178] BTRFS info (device sdf1): the free space cache file (16411300724736) is invalid, skip it
a scrub of that drive was finde.
Also, the stats look good:
btrfs dev stats /srv/dev-disk-by-label-DataPool1
[/dev/sdf1].write_io_errs 0
[/dev/sdf1].read_io_errs 0
[/dev/sdf1].flush_io_errs 0
[/dev/sdf1].corruption_errs 0
[/dev/sdf1].generation_errs 0
[/dev/sdc1].write_io_errs 0
[/dev/sdc1].read_io_errs 0
[/dev/sdc1].flush_io_errs 0
[/dev/sdc1].corruption_errs 0
[/dev/sdc1].generation_errs 0
Is this concerning?
What should I do?
Regards,
Hendrik
