Currently unreadable (pending) sectors 错误

80mail

在/var/log/message里看到如下提示：
Nov 20 13:37:11 localhost smartd[1432]: Device: /dev/hda, 1 Currently unreadable (pending) sectors
Nov 20 13:37:11 localhost smartd[1432]: Device: /dev/hda, 1 Offline uncorrectable sectors


smartctl -l error /dev/hda的内容如下，请大家看看硬盘是否有问题。谢谢
[root@localhost ~]# smartctl -l error /dev/hda

smartctl version 5.33 [i386-redhat-linux-gnu] Copyright (C) 2002-4 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF READ SMART DATA SECTION ===
SMART Error Log Version: 1
ATA Error Count: 28 (device log contains only the most recent five errors)
        CR = Command Register [HEX]
        FR = Features Register [HEX]
        SC = Sector Count Register [HEX]
        SN = Sector Number Register [HEX]
        CL = Cylinder Low Register [HEX]
        CH = Cylinder High Register [HEX]
        DH = Device/Head Register [HEX]
        DC = Device Command Register [HEX]
        ER = Error register [HEX]
        ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 28 occurred at disk power-on lifetime: 2401 hours (100 days + 1 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 00 d3 5e 04 e0  Error: UNC at LBA = 0x00045ed3 = 286419

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  25 00 28 cd 5e 04 e0 00      02:55:39.130  READ DMA EXT
  25 00 30 c5 5e 04 e0 00      02:55:37.378  READ DMA EXT
  25 00 38 bd 5e 04 e0 00      02:55:35.626  READ DMA EXT
  25 00 40 b5 5e 04 e0 00      02:55:33.874  READ DMA EXT
  25 00 48 ad 5e 04 e0 00      02:55:32.122  READ DMA EXT

Error 27 occurred at disk power-on lifetime: 2401 hours (100 days + 1 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 00 d3 5e 04 e0  Error: UNC at LBA = 0x00045ed3 = 286419

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  25 00 30 c5 5e 04 e0 00      02:55:12.824  READ DMA EXT
  25 00 38 bd 5e 04 e0 00      02:55:37.378  READ DMA EXT
  25 00 40 b5 5e 04 e0 00      02:55:35.626  READ DMA EXT
  25 00 48 ad 5e 04 e0 00      02:55:33.874  READ DMA EXT
  25 00 50 a5 5e 04 e0 00      02:55:32.122  READ DMA EXT

Error 26 occurred at disk power-on lifetime: 2401 hours (100 days + 1 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 00 d3 5e 04 e0  Error: UNC at LBA = 0x00045ed3 = 286419

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  25 00 38 bd 5e 04 e0 00      02:55:12.824  READ DMA EXT
  25 00 40 b5 5e 04 e0 00      02:55:11.064  READ DMA EXT
  25 00 48 ad 5e 04 e0 00      02:55:35.626  READ DMA EXT
  25 00 50 a5 5e 04 e0 00      02:55:33.874  READ DMA EXT
  25 00 58 9d 5e 04 e0 00      02:55:32.122  READ DMA EXT

Error 25 occurred at disk power-on lifetime: 2401 hours (100 days + 1 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 00 d3 5e 04 e0  Error: UNC at LBA = 0x00045ed3 = 286419

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  25 00 40 b5 5e 04 e0 00      02:55:12.824  READ DMA EXT
  25 00 48 ad 5e 04 e0 00      02:55:11.064  READ DMA EXT
  25 00 50 a5 5e 04 e0 00      02:55:09.312  READ DMA EXT
  25 00 58 9d 5e 04 e0 00      02:55:33.874  READ DMA EXT
  25 00 60 95 5e 04 e0 00      02:55:32.122  READ DMA EXT

Error 24 occurred at disk power-on lifetime: 2401 hours (100 days + 1 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 00 d3 5e 04 e0  Error: UNC at LBA = 0x00045ed3 = 286419

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  25 00 48 ad 5e 04 e0 00      02:55:12.824  READ DMA EXT
  25 00 50 a5 5e 04 e0 00      02:55:11.064  READ DMA EXT
  25 00 58 9d 5e 04 e0 00      02:55:09.312  READ DMA EXT
  25 00 60 95 5e 04 e0 00      02:55:07.560  READ DMA EXT
  25 00 68 8d 5e 04 e0 00      02:55:32.122  READ DMA EXT