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哪些是已恢复和未恢复的介质错误?

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可不使用  

适用场景

所有磁盘

问题解答

在磁盘上,介质错误是指由于访问存储的数据时出现问题,磁盘无法执行请求的 I/O 操作的事件。介质错误分为可恢复和不可恢复两类。

可恢复的错误比较常见,因此预期错误率较高。可恢复的错误表明,磁盘可能需要执行比初始访问更多的操作才能正确访问数据。该磁盘最终能够提供所请求的数据,而无需 RAID 干预。可能需要重试,或者重试不会生成正确的数据,并且已进行了一些错误更正。

示例

可恢复的介质错误:

[ispfc_main:error]: Disk 8a.22: op 0x28:0002c118:0080 sector 180549 recovered error - (1 17, 3)
[scsi.cmd.checkCondition:error]: Device 8a.22: Check Condition: CDB 0x28:0002c118:0080: Sense Data recovered error - (0x1 - 0x17 0x3 0xe4).

不可恢复的介质错误:

[ispfc_main:error]: Disk 7a.38: op 0x28:023d3540:0080 sector 37565872 medium error - Unrecovered read error (3 11, 0)
[ispfc_main:notice]: Disk 7a.38: sector 37565872 will be reassigned
[ispfc_main:error]: Medium err for disk 7a.38 (serial no. 12345678000072011ACT).
[scsi.cmd.checkCondition:error]: Device 7a.38: Check Condition: CDB 0x28:023d3540:0080: Sense Data medium error - Unrecovered read error (0x3 - 0x11 0x0 0xe4).

追加信息

有关详细信息,请参见 了解介质和已恢复磁盘错误

 

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