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(Solved) md: disk0 read error

squishee
in General Support

Featured Replies

I started noticing slowness followed by the shutdown of some apps and finally not being able to connect to my server for a bit. I see tons of disk read errors in the logs, examples below. Hoping for clarity on what's going on. 

  

Oct 20 05:14:55 server kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Oct 20 05:14:55 server kernel: ata1.00: configured for UDMA/33
Oct 20 05:14:55 server kernel: sd 1:0:0:0: [sdb] tag#1 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
Oct 20 05:14:55 server kernel: sd 1:0:0:0: [sdb] tag#1 Sense Key : 0x5 [current] 
Oct 20 05:14:55 server kernel: sd 1:0:0:0: [sdb] tag#1 ASC=0x21 ASCQ=0x4 
Oct 20 05:14:55 server kernel: sd 1:0:0:0: [sdb] tag#1 CDB: opcode=0x88 88 00 00 00 00 00 00 08 4e 60 00 00 05 40 00 00
Oct 20 05:14:55 server kernel: blk_update_request: I/O error, dev sdb, sector 544352
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544288
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544296
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544304
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544312
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544320
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544328
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544336
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544344
Oct 20 05:14:55 server kernel: ata1: EH complete
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544352
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544360
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544368
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544376
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544384
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544392
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544400
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544408
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544416
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544424
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544432
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544440
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544448
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544456
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544464
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544472
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544480
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544488
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544496
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544504
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544512
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544520
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544528
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544536
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544544
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544552
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544560
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544568
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544576
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544584
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544592
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544600
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544608
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544616
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544624
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544632
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544640
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544648
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544656
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544664
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544672
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544680
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544688
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544696
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544704
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544712
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544720
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544728
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544736
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544744
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544752
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544760
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544768
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544776
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544784
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544792
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544800
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544808
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544816
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544824
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544832
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544840
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544848
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544856
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544864
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544872
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544880
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544888
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544896
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544904
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544912
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544920
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544928
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544936
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544944
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544952
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544960
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544968
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544976
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544984
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=544992
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545000
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545008
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545016
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545024
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545032
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545040
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545048
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545056
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545064
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545072
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545080
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545088
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545096
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545104
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545112
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545120
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545128
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545136
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545144
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545152
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545160
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545168
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545176
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545184
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545192
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545200
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545208
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545216
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545224
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545232
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545240
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545248
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545256
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545264
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545272
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545280
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545288
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545296
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545304
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545312
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545320
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545328
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545336
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545344
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545352
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545360
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545368
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545376
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545384
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545392
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545400
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545408
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545416
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545424
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545432
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545440
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545448
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545456
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545464
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545472
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545480
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545488
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545496
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545504
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545512
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545520
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545528
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545536
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545544
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545552
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545560
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545568
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545576
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545584
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545592
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545600
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545608
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545616
Oct 20 05:14:55 server kernel: md: disk0 read error, sector=545624
Oct 20 05:14:55 server kernel: ata1.00: exception Emask 0x50 SAct 0x0 SErr 0x90a00 action 0xe frozen
Oct 20 05:14:55 server kernel: ata1.00: irq_stat 0x01400000, PHY RDY changed
Oct 20 05:14:55 server kernel: ata1: SError: { Persist HostInt PHYRdyChg 10B8B }
Oct 20 05:14:55 server kernel: ata1.00: failed command: READ DMA EXT
Oct 20 05:14:55 server kernel: ata1.00: cmd 25/00:40:b0:57:08/00:05:00:00:00/e0 tag 8 dma 688128 in
Oct 20 05:14:55 server kernel:         res 50/00:00:9f:53:08/00:00:00:00:00/e0 Emask 0x50 (ATA bus error)
Oct 20 05:14:55 server kernel: ata1.00: status: { DRDY }
Oct 20 05:14:55 server kernel: ata1: hard resetting link
Oct 20 05:15:01 server kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Oct 20 05:15:01 server kernel: ata1.00: configured for UDMA/33
Oct 20 05:15:01 server kernel: ata1: EH complete
Oct 20 05:15:03 server kernel: ata1.00: exception Emask 0x50 SAct 0x0 SErr 0x90a00 action 0xe frozen

 

server-diagnostics-20171020-0520.zip

server-syslog-20171020-0519.zip

Edited by squishee

  • Quote
    • Community Expert

    There are link issues with the parity disk since first boot, SMART looks OK so first try checking/replacing cables.

     

    P.S. when you reboot enter your bios and change SATA ports 5 and 6 from IDE to AHCI/SATA.

  • Quote
    • Author

    Fixing the cables did the trick. Thanks!

  • Quote

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