我的主數據驅動器出現各種奇怪的 I/O 錯誤：
(tail of dmesg output)
[ 7081.267852] sd 4:0:0:0: [sdb] Unhandled error code
[ 7081.267856] sd 4:0:0:0: [sdb] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
[ 7081.267860] sd 4:0:0:0: [sdb] CDB: Read(10): 28 00 36 c4 48 d0 00 00 08 00
[ 7081.267870] end_request: I/O error, dev sdb, sector 918833360
[ 7081.270431] sd 4:0:0:0: [sdb] Unhandled error code
[ 7081.270435] sd 4:0:0:0: [sdb] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
[ 7081.270439] sd 4:0:0:0: [sdb] CDB: Read(10): 28 00 36 c4 48 d0 00 00 08 00
[ 7081.270449] end_request: I/O error, dev sdb, sector 918833360
[ 7081.468662] sd 4:0:0:0: [sdb] Unhandled error code
[ 7081.468667] sd 4:0:0:0: [sdb] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
[ 7081.468671] sd 4:0:0:0: [sdb] CDB: Read(10): 28 00 36 c4 48 d0 00 00 08 00
[ 7081.468681] end_request: I/O error, dev sdb, sector 918833360
saad@Home-Server:~$ tail /var/log/syslog
Mar 15 14:23:19 Home-Server kernel: [ 7081.270431] sd 4:0:0:0: [sdb] Unhandled error code
Mar 15 14:23:19 Home-Server kernel: [ 7081.270435] sd 4:0:0:0: [sdb] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
Mar 15 14:23:19 Home-Server kernel: [ 7081.270439] sd 4:0:0:0: [sdb] CDB: Read(10): 28 00 36 c4 48 d0 00 00 08 00
Mar 15 14:23:19 Home-Server kernel: [ 7081.270449] end_request: I/O error, dev sdb, sector 918833360
Mar 15 14:23:19 Home-Server kernel: [ 7081.468662] sd 4:0:0:0: [sdb] Unhandled error code
Mar 15 14:23:19 Home-Server kernel: [ 7081.468667] sd 4:0:0:0: [sdb] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
Mar 15 14:23:19 Home-Server kernel: [ 7081.468671] sd 4:0:0:0: [sdb] CDB: Read(10): 28 00 36 c4 48 d0 00 00 08 00
Mar 15 14:23:19 Home-Server kernel: [ 7081.468681] end_request: I/O error, dev sdb, sector 918833360
驅動死了嗎？還是 mbr 腐敗問題？
答案1
到目前為止，不太可能是 MBR - 驅動器問題或隨機損壞，如果您還沒有備份，請快速備份！
然後你需要對其運行 fsck & badblocks：
sudo -i
fsck -t ext4 /dev/sdb1 # or whatever partition it is..
e2fsck -c /dev/sdb
badblocks 的手冊頁建議這樣做，而不是直接這樣做。如果有 SMART 監控，則查看日誌並執行測試。