Is it really a no problem? I mean, for some reason BTRFS is continuously read the HDD capacity in an array, that does not seem to be really correct Bye
2018-02-26 11:07 GMT+01:00 Menion <men...@gmail.com>: > Hi all > I have recently started to operate an array of 5x8TB HDD (WD RED) in RAID5 > mode > The array seems to work ok, but with the time the dmesg is flooded by this > log: > > [ 338.674673] sd 0:0:0:0: [sda] Very big device. Trying to use READ > CAPACITY(16). > [ 338.767184] sd 0:0:0:1: [sdb] Very big device. Trying to use READ > CAPACITY(16). > [ 338.989477] sd 0:0:0:3: [sdd] Very big device. Trying to use READ > CAPACITY(16). > [ 339.301194] sd 0:0:0:4: [sde] Very big device. Trying to use READ > CAPACITY(16). > [ 339.506579] sd 0:0:0:2: [sdc] Very big device. Trying to use READ > CAPACITY(16). > [ 649.393340] sd 0:0:0:0: [sda] Very big device. Trying to use READ > CAPACITY(16). > [ 650.129849] sd 0:0:0:1: [sdb] Very big device. Trying to use READ > CAPACITY(16). > [ 650.379622] sd 0:0:0:3: [sdd] Very big device. Trying to use READ > CAPACITY(16). > [ 650.524828] sd 0:0:0:4: [sde] Very big device. Trying to use READ > CAPACITY(16). > [ 650.721615] sd 0:0:0:2: [sdc] Very big device. Trying to use READ > CAPACITY(16). > [ 959.544384] sd 0:0:0:0: [sda] Very big device. Trying to use READ > CAPACITY(16). > [ 959.627015] sd 0:0:0:1: [sdb] Very big device. Trying to use READ > CAPACITY(16). > [ 959.790280] sd 0:0:0:3: [sdd] Very big device. Trying to use READ > CAPACITY(16). > [ 959.901179] sd 0:0:0:4: [sde] Very big device. Trying to use READ > CAPACITY(16). > [ 960.048734] sd 0:0:0:2: [sdc] Very big device. Trying to use READ > CAPACITY(16). > > sda,sdb,sdc,sdd,sde as you can imagine are the HDDs in the array > > Other info (note: there is also another single BTRFS array of 3 small > device that never print this log and my root filesystem is BTRFS as > well) > > menion@Menionubuntu:/etc$ uname -a > Linux Menionubuntu 4.15.5-041505-generic #201802221031 SMP Thu Feb 22 > 15:32:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux > menion@Menionubuntu:/etc$ btrfs --version > btrfs-progs v4.15.1 > menion@Menionubuntu:/etc$ sudo btrfs fi show > [sudo] password for menion: > Label: none uuid: 6db4baf7-fda8-41ac-a6ad-1ca7b083430f > Total devices 1 FS bytes used 9.02GiB > devid 1 size 27.07GiB used 11.02GiB path /dev/mmcblk0p3 > > Label: none uuid: 931d40c6-7cd7-46f3-a4bf-61f3a53844bc > Total devices 5 FS bytes used 5.47TiB > devid 1 size 7.28TiB used 1.37TiB path /dev/sda > devid 2 size 7.28TiB used 1.37TiB path /dev/sdb > devid 3 size 7.28TiB used 1.37TiB path /dev/sdc > devid 4 size 7.28TiB used 1.37TiB path /dev/sdd > devid 5 size 7.28TiB used 1.37TiB path /dev/sde > > Label: none uuid: ba1e0d88-2e26-499d-8fe3-458b9c53349a > Total devices 3 FS bytes used 534.50GiB > devid 1 size 232.89GiB used 102.03GiB path /dev/sdh > devid 2 size 232.89GiB used 102.00GiB path /dev/sdi > devid 3 size 465.76GiB used 335.03GiB path /dev/sdj > > menion@Menionubuntu:/etc$ sudo btrfs fi df /media/storage/das1 > Data, RAID5: total=5.49TiB, used=5.46TiB > System, RAID5: total=12.75MiB, used=352.00KiB > Metadata, RAID5: total=7.00GiB, used=6.11GiB > GlobalReserve, single: total=512.00MiB, used=0.00B > menion@Menionubuntu:/etc$ -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
