So I now ran "btrfs check" and it found some errors, I tried "-o degraded,clear_cache" to get rid of the "failed to load free space cache for block group" errors but without success. Is "btrfs check --repair" able to fix my problems or would it make things worse?
dmesg for degraded,clear_cache [ 6034.974188] BTRFS info (device sda): allowing degraded mounts [ 6034.974203] BTRFS info (device sda): force clearing of disk cache [ 6034.974208] BTRFS info (device sda): disk space caching is enabled [ 6034.990498] BTRFS warning (device sda): devid 7 missing [ 6035.176337] BTRFS: bdev (null) errs: wr 57611, rd 6576553, flush 0, corrupt 0, gen 0 The "checking fs roots" stage took about 4 hours. # btrfs check /dev/sda warning devid 7 not found already Checking filesystem on /dev/sda UUID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx checking extents checking free space cache ... there are a lot of these space cache errors ... Error reading 65837128155136, -1 failed to load free space cache for block group 86320755769344 Error reading 65473418690560, -1 failed to load free space cache for block group 86322147229696 Error reading 65488787603456, -1 failed to load free space cache for block group 86323536068608 Error reading 66592644005888, -1 failed to load free space cache for block group 86326311649280 Error reading 65494865608704, -1 failed to load free space cache for block group 86329084346368 Error reading 66592780910592, -1 failed to load free space cache for block group 86330467680256 Error reading 65547785207808, -1 failed to load free space cache for block group 86333233037312 Error reading 65546530521088, -1 failed to load free space cache for block group 86334612963328 Error reading 66592982564864, -1 failed to load free space cache for block group 86335992627200 Error reading 68234986389504, -1 failed to load free space cache for block group 86375265337344 checking fs roots root 260 inode 164555 errors 400, nbytes wrong root 260 inode 176322 errors 400, nbytes wrong found 20384231645281 bytes used err is 1 total csum bytes: 19856909464 total tree bytes: 23720411136 total fs tree bytes: 884711424 total extent tree bytes: 799186944 btree space waste bytes: 2086359131 file data blocks allocated: 105517330931712 referenced 19815959842816 btrfs-progs v4.1.1 None None <whocares0...@freemail.hu> írta: >One of my 3TB drives failed (not recognized anymore) recently so I got two new >4TB drives, I mounted the fs with -o degraded and used "btrfs dev add" to add >the new drives then I did "btrfs dev del missing". >Now delete missing always returns an error >ERROR: error removing the device 'missing' - Input/output error > >According to dmesg sda returns bad data but the smart values for it seem fine. >How do I get the FS working again? > > > >Debian/SID, kernel v4.1 > > > ># btrfs fi df /srv/ >Data, RAID5: total=18.96TiB, used=18.52TiB >System, RAID1: total=32.00MiB, used=2.30MiB >Metadata, RAID1: total=24.06GiB, used=22.09GiB >GlobalReserve, single: total=512.00MiB, used=0.00B > > > ># btrfs fi sho >Label: none uuid: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx > Total devices 11 FS bytes used 18.54TiB > devid 1 size 2.73TiB used 2.56TiB path /dev/sdh > devid 2 size 2.73TiB used 2.63TiB path /dev/sdg > devid 3 size 2.73TiB used 2.64TiB path /dev/sdj > devid 4 size 2.73TiB used 2.60TiB path /dev/sdk > devid 5 size 2.73TiB used 2.63TiB path /dev/sdb > devid 6 size 2.73TiB used 2.73TiB path /dev/sda > devid 9 size 2.73TiB used 2.73TiB path /dev/sdd > devid 10 size 2.73TiB used 2.73TiB path /dev/sdl > devid 11 size 3.64TiB used 2.66GiB path /dev/sdc > devid 12 size 3.64TiB used 2.66GiB path /dev/sde > *** Some devices missing > >btrfs-progs v4.0 > > > ># dmesg | tail -n 40 >[ 9474.630480] BTRFS warning (device sda): csum failed ino 384 off 2927886336 >csum 1204172668 expected csum 3738892907 >[ 9474.630487] BTRFS warning (device sda): csum failed ino 384 off 2927919104 >csum 729502971 expected csum 57406087 >[ 9474.630493] BTRFS warning (device sda): csum failed ino 384 off 2927923200 >csum 1688454633 expected csum 4263548653 >[ 9474.630495] BTRFS warning (device sda): csum failed ino 384 off 2927927296 >csum 3679588162 expected csum 4283532667 >[ 9484.066796] BTRFS info (device sda): relocating block group 66338809643008 >flags 129 >[ 9505.492349] __readpage_endio_check: 6 callbacks suppressed >[ 9505.492356] BTRFS warning (device sda): csum failed ino 385 off 2927886336 >csum 1204172668 expected csum 3738892907 >[ 9505.492366] BTRFS warning (device sda): csum failed ino 385 off 2927890432 >csum 645393967 expected csum 1519548271 >[ 9505.492372] BTRFS warning (device sda): csum failed ino 385 off 2927894528 >csum 3254966910 expected csum 2168664573 >[ 9505.492377] BTRFS warning (device sda): csum failed ino 385 off 2927898624 >csum 3464250141 expected csum 1621289634 >[ 9505.492382] BTRFS warning (device sda): csum failed ino 385 off 2927902720 >csum 2214000308 expected csum 2797028572 >[ 9505.492387] BTRFS warning (device sda): csum failed ino 385 off 2927906816 >csum 3719155761 expected csum 561200354 >[ 9505.492392] BTRFS warning (device sda): csum failed ino 385 off 2927910912 >csum 98768328 expected csum 1311354303 >[ 9505.492397] BTRFS warning (device sda): csum failed ino 385 off 2927915008 >csum 996429330 expected csum 1552366519 >[ 9505.492402] BTRFS warning (device sda): csum failed ino 385 off 2927919104 >csum 729502971 expected csum 57406087 >[ 9505.492407] BTRFS warning (device sda): csum failed ino 385 off 2927923200 >csum 1688454633 expected csum 4263548653 >[ 9515.428150] BTRFS info (device sda): relocating block group 66338809643008 >flags 129 >[ 9534.605158] __readpage_endio_check: 7 callbacks suppressed >[ 9534.605165] BTRFS warning (device sda): csum failed ino 386 off 2927886336 >csum 1204172668 expected csum 3738892907 >[ 9534.605174] BTRFS warning (device sda): csum failed ino 386 off 2927890432 >csum 645393967 expected csum 1519548271 >[ 9534.605184] BTRFS warning (device sda): csum failed ino 386 off 2927894528 >csum 3254966910 expected csum 2168664573 >[ 9534.605192] BTRFS warning (device sda): csum failed ino 386 off 2927898624 >csum 3464250141 expected csum 1621289634 >[ 9534.605194] BTRFS warning (device sda): csum failed ino 386 off 2927902720 >csum 2214000308 expected csum 2797028572 >[ 9534.605198] BTRFS warning (device sda): csum failed ino 386 off 2927906816 >csum 3719155761 expected csum 561200354 >[ 9534.605204] BTRFS warning (device sda): csum failed ino 386 off 2927910912 >csum 98768328 expected csum 1311354303 >[ 9534.605206] BTRFS warning (device sda): csum failed ino 386 off 2927915008 >csum 996429330 expected csum 1552366519 >[ 9534.605212] BTRFS warning (device sda): csum failed ino 386 off 2927919104 >csum 729502971 expected csum 57406087 >[ 9534.605215] BTRFS warning (device sda): csum failed ino 386 off 2927923200 >csum 1688454633 expected csum 4263548653 >[ 9543.317995] BTRFS info (device sda): relocating block group 66338809643008 >flags 129 >[ 9564.879155] __readpage_endio_check: 7 callbacks suppressed >[ 9564.879161] BTRFS warning (device sda): csum failed ino 387 off 2927886336 >csum 1204172668 expected csum 3738892907 >[ 9564.879171] BTRFS warning (device sda): csum failed ino 387 off 2927890432 >csum 645393967 expected csum 1519548271 >[ 9564.879176] BTRFS warning (device sda): csum failed ino 387 off 2927894528 >csum 3254966910 expected csum 2168664573 >[ 9564.879182] BTRFS warning (device sda): csum failed ino 387 off 2927898624 >csum 3464250141 expected csum 1621289634 >[ 9564.879187] BTRFS warning (device sda): csum failed ino 387 off 2927902720 >csum 2214000308 expected csum 2797028572 >[ 9564.879192] BTRFS warning (device sda): csum failed ino 387 off 2927906816 >csum 3719155761 expected csum 561200354 >[ 9564.879196] BTRFS warning (device sda): csum failed ino 387 off 2927910912 >csum 98768328 expected csum 1311354303 >[ 9564.879202] BTRFS warning (device sda): csum failed ino 387 off 2927915008 >csum 996429330 expected csum 1552366519 >[ 9564.879207] BTRFS warning (device sda): csum failed ino 387 off 2927919104 >csum 729502971 expected csum 57406087 >[ 9564.879212] BTRFS warning (device sda): csum failed ino 387 off 2927923200 >csum 1688454633 expected csum 4263548653 > > > ># smartctl -a /dev/sda >smartctl 6.4 2014-10-07 r4002 [x86_64-linux-4.1.0-custom+] (local build) >Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org > >=== START OF INFORMATION SECTION === >Model Family: Seagate Barracuda 7200.14 (AF) >Device Model: ST3000DM001-1CH166 >Serial Number: XXXXXXXX >LU WWN Device Id: 5 000c50 04eee2715 >Firmware Version: CC29 >User Capacity: 3,000,592,982,016 bytes [3.00 TB] >Sector Sizes: 512 bytes logical, 4096 bytes physical >Rotation Rate: 7200 rpm >Form Factor: 3.5 inches >Device is: In smartctl database [for details use: -P show] >ATA Version is: ACS-2, ACS-3 T13/2161-D revision 3b >SATA Version is: SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s) >Local Time is: Fri Jul 10 03:43:08 2015 UTC >SMART support is: Available - device has SMART capability. >SMART support is: Enabled > >=== START OF READ SMART DATA SECTION === >SMART overall-health self-assessment test result: PASSED > >General SMART Values: >Offline data collection status: (0x82) Offline data collection activity > was completed without error. > Auto Offline Data Collection: Enabled. >Self-test execution status: ( 0) The previous self-test routine >completed > without error or no self-test has ever > been run. >Total time to complete Offline >data collection: ( 584) seconds. >Offline data collection >capabilities: (0x7b) SMART execute Offline immediate. > Auto Offline data collection on/off > support. > Suspend Offline collection upon new > command. > Offline surface scan supported. > Self-test supported. > Conveyance Self-test supported. > Selective Self-test supported. >SMART capabilities: (0x0003) Saves SMART data before entering > power-saving mode. > Supports SMART auto save timer. >Error logging capability: (0x01) Error logging supported. > General Purpose Logging supported. >Short self-test routine >recommended polling time: ( 1) minutes. >Extended self-test routine >recommended polling time: ( 336) minutes. >Conveyance self-test routine >recommended polling time: ( 2) minutes. >SCT capabilities: (0x3085) SCT Status supported. > >SMART Attributes Data Structure revision number: 10 >Vendor Specific SMART Attributes with Thresholds: >ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED >WHEN_FAILED RAW_VALUE > 1 Raw_Read_Error_Rate 0x000f 108 099 006 Pre-fail Always > - 15470024 > 3 Spin_Up_Time 0x0003 094 093 000 Pre-fail Always > - 0 > 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always > - 92 > 5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always > - 0 > 7 Seek_Error_Rate 0x000f 075 059 030 Pre-fail Always > - 47614627725 > 9 Power_On_Hours 0x0032 077 077 000 Old_age Always > - 20473 > 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always > - 0 > 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always > - 91 >183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always >- 0 >184 End-to-End_Error 0x0032 100 100 099 Old_age Always >- 0 >187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always >- 0 >188 Command_Timeout 0x0032 100 099 000 Old_age Always >- 0 0 6 >189 High_Fly_Writes 0x003a 083 083 000 Old_age Always >- 17 >190 Airflow_Temperature_Cel 0x0022 067 061 045 Old_age Always >- 33 (Min/Max 26/33) >191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always >- 0 >192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always >- 42 >193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always >- 219 >194 Temperature_Celsius 0x0022 033 040 000 Old_age Always >- 33 (0 17 0 0 0) >197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always >- 0 >198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline >- 0 >199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always >- 0 >240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline >- 20467h+17m+19.660s >241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline >- 127039808220 >242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline >- 92772194111 > >SMART Error Log Version: 1 >No Errors Logged > >SMART Self-test log structure revision number 1 >No self-tests have been logged. [To run self-tests, use: smartctl -t] > >SMART Selective self-test log data structure revision number 1 > SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS > 1 0 0 Not_testing > 2 0 0 Not_testing > 3 0 0 Not_testing > 4 0 0 Not_testing > 5 0 0 Not_testing >Selective self-test flags (0x0): > After scanning selected spans, do NOT read-scan remainder of disk. >If Selective self-test is pending on power-up, resume after 0 minute delay. > -- 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
