我有一台运行 Ubuntu 16.04 的服务器，其中有一些数据写入外部硬盘。11 月 6 日，服务器突然停止工作，当我重新启动服务器时，它开始正常工作，我从日志文件中收到以下错误Detected IO errors while flushing file data on sdc-8。我看到最后一次写入磁盘发生在 11 月 6 日 12:44:01，我已附上当时的日志。
有人能帮我找出当时可能发生的情况吗？这样我就可以在服务器上应用修复程序来防止这种情况发生。
Nov 6 12:27:09 user kernel: [10350005.519121] scsi_io_completion: 11 callbacks suppressed
Nov 6 12:27:09 user kernel: [10350005.519132] sd 2:0:0:0: [sdc] tag#10 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Nov 6 12:27:09 user kernel: [10350005.519141] sd 2:0:0:0: [sdc] tag#10 CDB: Write(16) 8a 00 00 00 00 00 1d fc f3 28 00 00 01 28 00 00
Nov 6 12:27:09 user kernel: [10350005.519144] print_req_error: 11 callbacks suppressed
Nov 6 12:27:09 user kernel: [10350005.519147] print_req_error: I/O error, dev sdc, sector 503116584
Nov 6 12:27:09 user kernel: [10350005.519156] EXT4-fs warning: 4 callbacks suppressed
Nov 6 12:27:09 user kernel: [10350005.519162] EXT4-fs warning (device sdc): ext4_end_bio:323: I/O error 10 writing to inode 85219810 (offset 0 size 151552 starting block 62889610)
Nov 6 12:27:09 user kernel: [10350005.519165] buffer_io_error: 741 callbacks suppressed
Nov 6 12:27:09 user kernel: [10350005.519167] Buffer I/O error on device sdc, logical block 62889573
Nov 6 12:27:09 user kernel: [10350005.519174] Buffer I/O error on device sdc, logical block 62889574
Nov 6 12:27:09 user kernel: [10350005.519179] Buffer I/O error on device sdc, logical block 62889575
Nov 6 12:27:09 user kernel: [10350005.519183] Buffer I/O error on device sdc, logical block 62889576
Nov 6 12:27:09 user kernel: [10350005.519188] Buffer I/O error on device sdc, logical block 62889577
Nov 6 12:27:09 user kernel: [10350005.519192] Buffer I/O error on device sdc, logical block 62889578
Nov 6 12:27:09 user kernel: [10350005.519197] Buffer I/O error on device sdc, logical block 62889579
Nov 6 12:27:09 user kernel: [10350005.519201] Buffer I/O error on device sdc, logical block 62889580
Nov 6 12:27:09 user kernel: [10350005.519206] Buffer I/O error on device sdc, logical block 62889581
Nov 6 12:27:09 user kernel: [10350005.519210] Buffer I/O error on device sdc, logical block 62889582
Nov 6 12:27:09 user kernel: [10350005.519258] sd 2:0:0:0: [sdc] tag#9 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Nov 6 12:27:09 user kernel: [10350005.519263] sd 2:0:0:0: [sdc] tag#9 CDB: Write(16) 8a 00 00 00 00 00 1d fc f0 98 00 00 01 30 00 00
Nov 6 12:27:09 user kernel: [10350005.519266] print_req_error: I/O error, dev sdc, sector 503115928
Nov 6 12:27:09 user kernel: [10350005.519274] EXT4-fs warning (device sdc): ext4_end_bio:323: I/O error 10 writing to inode 86550053 (offset 0 size 155648 starting block 62889529)
Nov 6 12:27:09 user kernel: [10350005.519322] sd 2:0:0:0: [sdc] tag#8 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Nov 6 12:27:09 user kernel: [10350005.519327] sd 2:0:0:0: [sdc] tag#8 CDB: Write(16) 8a 00 00 00 00 00 1d fc 1c a0 00 00 01 30 00 00
Nov 6 12:27:09 user kernel: [10350005.519330] print_req_error: I/O error, dev sdc, sector 503061664
Nov 6 12:27:09 user kernel: [10350005.519337] EXT4-fs warning (device sdc): ext4_end_bio:323: I/O error 10 writing to inode 85219807 (offset 0 size 155648 starting block 62882746)
Nov 6 12:27:09 user kernel: [10350005.519384] sd 2:0:0:0: [sdc] tag#7 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Nov 6 12:27:09 user kernel: [10350005.519389] sd 2:0:0:0: [sdc] tag#7 CDB: Write(16) 8a 00 00 00 00 01 21 80 00 38 00 00 00 08 00 00
Nov 6 12:27:09 user kernel: [10350005.519391] print_req_error: I/O error, dev sdc, sector 4857004088
Nov 6 12:27:09 user kernel: [10350005.519397] Buffer I/O error on dev sdc, logical block 607125511, lost async page write
Nov 6 12:27:09 user kernel: [10350005.519422] sd 2:0:0:0: [sdc] tag#6 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Nov 6 12:27:09 user kernel: [10350005.519427] sd 2:0:0:0: [sdc] tag#6 CDB: Write(16) 8a 00 00 00 00 01 21 44 4b c0 00 00 00 18 00 00
Nov 6 12:27:09 user kernel: [10350005.519429] print_req_error: I/O error, dev sdc, sector 4853091264
Nov 6 12:27:09 user kernel: [10350005.519437] EXT4-fs warning (device sdc): ext4_end_bio:323: I/O error 10 writing to inode 151685307 (offset 0 size 0 starting block 606636409)
Nov 6 12:27:09 user kernel: [10350005.519444] EXT4-fs warning (device sdc): ext4_end_bio:323: I/O error 10 writing to inode 151688454 (offset 0 size 4096 starting block 606636410)
Nov 6 12:27:09 user kernel: [10350005.519451] EXT4-fs warning (device sdc): ext4_end_bio:323: I/O error 10 writing to inode 151688455 (offset 0 size 4096 starting block 606636411)
Nov 6 12:27:09 user kernel: [10350005.519464] sd 2:0:0:0: [sdc] tag#5 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Nov 6 12:27:09 user kernel: [10350005.519468] sd 2:0:0:0: [sdc] tag#5 CDB: Write(16) 8a 00 00 00 00 01 21 44 4b 68 00 00 00 08 00 00
Nov 6 12:27:09 user kernel: [10350005.519471] print_req_error: I/O error, dev sdc, sector 4853091176
Nov 6 12:27:09 user kernel: [10350005.519477] EXT4-fs warning (device sdc): ext4_end_bio:323: I/O error 10 writing to inode 151688477 (offset 0 size 4096 starting block 606636398)
Nov 6 12:27:09 user kernel: [10350005.519494] sd 2:0:0:0: [sdc] tag#4 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Nov 6 12:27:09 user kernel: [10350005.519498] sd 2:0:0:0: [sdc] tag#4 CDB: Write(16) 8a 00 00 00 00 01 21 44 40 c8 00 00 00 78 00 00
Nov 6 12:27:09 user kernel: [10350005.519500] print_req_error: I/O error, dev sdc, sector 4853088456
Nov 6 12:27:09 user kernel: [10350005.519507] EXT4-fs warning (device sdc): ext4_end_bio:323: I/O error 10 writing to inode 151688476 (offset 0 size 4096 starting block 606636058)
Nov 6 12:27:09 user kernel: [10350005.519520] EXT4-fs warning (device sdc): ext4_end_bio:323: I/O error 10 writing to inode 151688479 (offset 0 size 4096 starting block 606636059)
Nov 6 12:27:09 user kernel: [10350005.519532] EXT4-fs warning (device sdc): ext4_end_bio:323: I/O error 10 writing to inode 151688481 (offset 0 size 4096 starting block 606636060)
Nov 6 12:27:09 user kernel: [10350005.519581] sd 2:0:0:0: [sdc] tag#3 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Nov 6 12:27:09 user kernel: [10350005.519586] sd 2:0:0:0: [sdc] tag#3 CDB: Write(16) 8a 00 00 00 00 01 21 41 87 38 00 00 00 08 00 00
Nov 6 12:27:09 user kernel: [10350005.519588] print_req_error: I/O error, dev sdc, sector 4852909880
Nov 6 12:27:09 user kernel: [10350005.519593] Buffer I/O error on dev sdc, logical block 606613735, lost async page write
Nov 6 12:27:09 user kernel: [10350005.519609] sd 2:0:0:0: [sdc] tag#2 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Nov 6 12:27:09 user kernel: [10350005.519614] sd 2:0:0:0: [sdc] tag#2 CDB: Write(16) 8a 00 00 00 00 01 21 41 56 60 00 00 00 08 00 00
Nov 6 12:27:09 user kernel: [10350005.519616] print_req_error: I/O error, dev sdc, sector 4852897376
Nov 6 12:27:09 user kernel: [10350005.519620] Buffer I/O error on dev sdc, logical block 606612172, lost async page write
Nov 6 12:27:09 user kernel: [10350005.519637] sd 2:0:0:0: [sdc] tag#1 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Nov 6 12:27:09 user kernel: [10350005.519641] sd 2:0:0:0: [sdc] tag#1 CDB: Write(16) 8a 00 00 00 00 01 21 41 56 40 00 00 00 10 00 00
Nov 6 12:27:09 user kernel: [10350005.519643] print_req_error: I/O error, dev sdc, sector 4852897344
Nov 6 12:27:09 user kernel: [10350005.519648] Buffer I/O error on dev sdc, logical block 606612168, lost async page write
Nov 6 12:27:09 user kernel: [10350005.519653] Buffer I/O error on dev sdc, logical block 606612169, lost async page write
Nov 6 12:27:09 user kernel: [10350005.519664] Buffer I/O error on dev sdc, logical block 606603630, lost async page write
Nov 6 12:27:09 user kernel: [10350005.520026] JBD2: Detected IO errors while flushing file data on sdc-8
Nov 6 12:44:41 user kernel: [10351057.165709] Aborting journal on device sdc-8.
Nov 6 12:44:41 user kernel: [10351057.269153] EXT4-fs error (device sdc): ext4_journal_check_start:61: Detected aborted journal
Nov 6 12:44:41 user kernel: [10351057.269160] EXT4-fs (sdc): Remounting filesystem read-only
Nov 6 12:44:41 user kernel: [10351057.277460] EXT4-fs error (device sdc): ext4_journal_check_start:61: Detected aborted journal
Nov 6 12:44:41 user kernel: [10351057.285798] EXT4-fs error (device sdc): ext4_journal_check_start:61: Detected aborted journal
Nov 6 12:44:41 user kernel: [10351057.344165] EXT4-fs error (device sdc): ext4_journal_check_start:61: Detected aborted journal
Nov 6 12:44:41 user kernel: [10351057.352474] EXT4-fs error (device sdc): ext4_journal_check_start:61: Detected aborted journal
Nov 6 12:44:41 user kernel: [10351057.352483] EXT4-fs (sdc): ext4_writepages: jbd2_start: 1024 pages, ino 86550607; err -30
答案1
这很可能是磁盘的硬件问题。内核正在向磁盘发送数据，但磁盘发送回复时超时了。重启系统或磁盘后，可能会正常工作，但问题可能会反复出现，直到磁盘坏掉。
如果可能的话，您应该使用将数据复制到新磁盘dd，然后丢弃旧磁盘。您可以尝试使用smartctl本文档介绍如何运行 SMART 自检看看它是否报告任何问题。