Hello,
Sometimes my system is hanging for a few seconds.
When I start top, I see this :
%cpu: 80.7 command: btrfs-transacti
Is it normal that btrfs-transaction takes such hijg cpu.
uname- a:
Linux sanos1 3.13.11-ckt13 #1 SMP Tue Feb 3 12:06:18 CET 2015 x86_64 x86_64 x86_64 GNU/Linux
btrfs fi sh:
Label: firstpool uuid: 517e8cfa-4275-4589-8da4-6a46ad613daa
Total devices 16 FS bytes used 5.12TiB
devid 1 size 931.51GiB used 930.92GiB path /dev/sdd
devid 2 size 931.51GiB used 930.92GiB path /dev/sde
devid 5 size 931.51GiB used 930.92GiB path /dev/sdh
devid 6 size 931.51GiB used 930.92GiB path /dev/sdi
devid 7 size 931.51GiB used 930.92GiB path /dev/sdj
devid 8 size 931.51GiB used 930.92GiB path /dev/sdk
devid 9 size 931.51GiB used 930.92GiB path /dev/sdl
devid 10 size 931.51GiB used 930.92GiB path /dev/sdm
devid 11 size 931.51GiB used 930.92GiB path /dev/sdn
devid 12 size 931.51GiB used 930.92GiB path /dev/sdo
devid 13 size 931.51GiB used 930.92GiB path /dev/sdp
devid 14 size 931.51GiB used 930.92GiB path /dev/sdq
devid 15 size 931.51GiB used 930.92GiB path /dev/sdf
devid 16 size 931.51GiB used 930.92GiB path /dev/sdg
devid 18 size 931.51GiB used 1.13GiB path /dev/sdb
devid 19 size 931.51GiB used 1.13GiB path /dev/sdc
The drive sdb and sdc where added for another problem where I will make another mail for.
btrfs fi df /btrfs
Data, RAID10: total=6.35TiB, used=5.11TiB
System, RAID10: total=64.00MiB, used=604.00KiB
System, single: total=4.00MiB, used=0.00
Metadata, RAID10: total=14.00GiB, used=10.62GiB
dmesg:
empty
Important:
btrfs device stats /btrfs
[/dev/sdk].write_io_errs 5
[/dev/sdk].read_io_errs 19
[/dev/sdk].flush_io_errs 0
[/dev/sdk].corruption_errs 0
[/dev/sdk].generation_errs 0
[/dev/sdl].write_io_errs 144
[/dev/sdl].read_io_errs 0
[/dev/sdl].flush_io_errs 48
[/dev/sdl].corruption_errs 129
[/dev/sdl].generation_errs 41
All other drive and values are 0.
Questions:
1) why is my system slow
2) unsificient disk space
The 2 disk where added in panic because my system got the message on btrfs unsuficiant disk space. I saw some articles that if the metadata is > 75% it becomes slow and even can't write anythign to it.
I solved this by temporary added a disk, but that was an iscsi disk from an unstable system.
So I removed that disk and added 2 new fysical disk.
The are not yet use until I do a btrfs balance /btrfs ??
How can I increase the metadata space?
3) error's on the disk k en l
Are these drive broke?
So maybey I have to replace these with teh 2 new once?
Met vriendelijke groeten,
Best regards,
Roel Niesen
1st Solutions
Become One
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