磁盘文件系统ext4上的I / O Xen Server

我有一个Xen Server 6.0和一个磁盘（2TB）报告I / O错误我的虚拟机是Centos 6.2（文件系统ext4）

end_request: I/O error, dev xvdc, sector 896084224 end_request: I/O error, dev xvdc, sector 896084312 end_request: I/O error, dev xvdc, sector 896084400 end_request: I/O error, dev xvdc, sector 896084488 end_request: I/O error, dev xvdc, sector 896084576 end_request: I/O error, dev xvdc, sector 896084664 end_request: I/O error, dev xvdc, sector 896084752 end_request: I/O error, dev xvdc, sector 896084840 end_request: I/O error, dev xvdc, sector 896084928 end_request: I/O error, dev xvdc, sector 896085016 end_request: I/O error, dev xvdc, sector 896085104 end_request: I/O error, dev xvdc, sector 896085192 end_request: I/O error, dev xvdc, sector 896085280 end_request: I/O error, dev xvdc, sector 896085368 end_request: I/O error, dev xvdc, sector 896085456 end_request: I/O error, dev xvdc, sector 896085544 end_request: I/O error, dev xvdc, sector 896085632 end_request: I/O error, dev xvdc, sector 896085720 end_request: I/O error, dev xvdc, sector 896085808

智能检查：

  smartctl version 5.38 [i686-redhat-linux-gnu] Copyright (C) 2002-8 Bruce Allen Home page is http://smartmontools.sourceforge.net/ === START OF READ SMART DATA SECTION === SMART Attributes Data Structure revision number: 10 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000f 114 099 006 Pre-fail Always - 65412104 3 Spin_Up_Time 0x0003 093 093 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 23 5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 072 060 030 Pre-fail Always - 18633333 9 Power_On_Hours 0x0032 094 094 000 Old_age Always - 5873 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 26 183 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 0 184 Unknown_Attribute 0x0032 100 100 099 Old_age Always - 0 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 188 Unknown_Attribute 0x0032 100 097 000 Old_age Always - 3 189 High_Fly_Writes 0x003a 099 099 000 Old_age Always - 1 190 Airflow_Temperature_Cel 0x0022 066 063 045 Old_age Always - 34 (Lifetime Min/Max 30/35) 191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 0 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 16 193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 26 194 Temperature_Celsius 0x0022 034 040 000 Old_age Always - 34 (0 22 0 0) 195 Hardware_ECC_Recovered 0x001a 026 003 000 Old_age Always - 65412104 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0 240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 64587718203122 241 Unknown_Attribute 0x0000 100 253 000 Old_age Offline - 3045564792 242 Unknown_Attribute 0x0000 100 253 000 Old_age Offline - 78354915 SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Extended offline Self-test routine in progress 10% 5873

它的xen错误？

确保你的备份是好的。这种错误通常意味着你有一个死亡的驱动器。

有可能是电缆或控制器的问题，但通常我发现这意味着驱动器已经准备好用一个完全没有更多启动的情况，在突然的系统冻结之前。特别是如果系统在此之前工作良好的一段时间。