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SMART 和异常 Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

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SMART 和异常 Emask 0x0 SAct 0x0 SErr 0x0 action 0x0

查看日志，我发现了几个错误。智能状态为已通过，但即使它很详细，也不清楚发生了什么。应该更换磁盘吗？

附加 dmesg 和智能日志

# dmesg
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata1.00: BMDMA stat 0x64
ata1.00: failed command: READ DMA EXT
ata1.00: cmd 25/00:08:61:5d:64/00:00:5f:00:00/e0 tag 0 dma 4096 in
         res 51/40:00:63:5d:64/40:00:5f:00:00/00 Emask 0x9 (media error)
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
sd 0:0:0:0: [sda] Unhandled sense code
sd 0:0:0:0: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:0:0: [sda] Sense Key : Medium Error [current] [descriptor]
Descriptor sense data with sense descriptors (in hex):
        72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
        5f 64 5d 63 
sd 0:0:0:0: [sda] Add. Sense: Unrecovered read error - auto reallocate failed
sd 0:0:0:0: [sda] CDB: Read(10): 28 00 5f 64 5d 61 00 00 08 00
ata1: EH complete 



# smartctl -x /dev/sda
smartctl 5.40 2010-07-12 r3124 [x86_64-unknown-linux-gnu] (local build)
Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Barracuda 7200.12 family
Device Model:     ST31000528AS
Serial Number:    9VP8WA3X
Firmware Version: CC38
User Capacity:    1,000,204,886,016 bytes
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   8
ATA Standard is:  ATA-8-ACS revision 4
Local Time is:    Sun Feb 10 16:13:22 2013 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

....

Error 36 [15] occurred at disk power-on lifetime: 16731 hours (697 days + 3 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER -- ST COUNT  LBA_48  LH LM LL DV DC
  -- -- -- == -- == == == -- -- -- -- --
  40 -- 51 00 00 00 5f 5d 00 64 63 00 00  Error: UNC at LBA = 0x5f5d006463 = 409582199907



SCT Error Recovery Control:
           Read: Disabled
          Write: Disabled

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x000a  2            8  Device-to-host register FISes sent due to a COMRESET
0x0001  2            0  Command failed due to ICRC error
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS

答案1

恭喜，您刚刚遇到了第一个无法恢复的读取错误。

sd 0:0:0:0: [sda] Add. Sense: Unrecovered read error - auto reallocate failed

这意味着驱动器无法读取磁盘的某个扇区，并且在这种情况下，也无法重新分配好扇区来代替坏扇区。

URE 可能导致驱动器在 RAID 控制器上显示为故障，并使您的 RAID 阵列处于降级状态。在任何剩余磁盘上发生下一次读取错误后，您将丢失所有数据。因此您应该立即更换磁盘。（如果不是在 RAID 中，那就糟了……）

尽管 SMART“通过”，但当您的驱动器显示任何数量的不可恢复的读取错误时，您应该能够获得保修更换。

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