如果我做以下事情
/opt/MegaRAID/MegaCli/MegaCli -LDInfo -Lall -aAll -NoLog > /tmp/tmp /opt/MegaRAID/MegaCli/MegaCli -LDPDInfo -aAll -NoLog >> /tmp/tmp
然后我看到了这些错误
Media Error Count: 11 Other Error Count: 5
题
他们是什么意思？他们批评吗？
全输出：
Adapter 0 -- Virtual Drive Information: Virtual Disk: 0 (target id: 0) Name:Virtual Disk 0 RAID Level: Primary-5,Secondary-0,RAID Level Qualifier-3 Size:951296MB State: Optimal Stripe Size: 64kB Number Of Drives:5 Span Depth:1 Default Cache Policy: WriteBack,ReadAheadNone,Direct,No Write Cache if Bad BBU Current Cache Policy: WriteBack,No Write Cache if Bad BBU Access Policy: Read/Write Disk Cache Policy: Disk's Default Adapter #0 Number of Virtual Disks: 1 Virtual Disk: 0 (target id: 0) Name:Virtual Disk 0 RAID Level: Primary-5,No Write Cache if Bad BBU Access Policy: Read/Write Disk Cache Policy: Disk's Default Number of Spans: 1 Span: 0 - Number of PDs: 5 PD: 0 Information Enclosure Device ID: N/A Slot Number: 0 Device Id: 0 Sequence Number: 2 Media Error Count: 0 Other Error Count: 0 Predictive Failure Count: 0 Last Predictive Failure Event Seq Number: 0 Raw Size: 238418MB [0x1d1a94a2 Sectors] Non Coerced Size: 237906MB [0x1d0a94a2 Sectors] Coerced Size: 237824MB [0x1d080000 Sectors] Firmware state: Online SAS Address(0): 0x1221000000000000 Connected Port Number: 0 Inquiry Data: ATA WDC WD2500JS-75N2E04 WD-WCANK9523610 PD: 1 Information Enclosure Device ID: N/A Slot Number: 1 Device Id: 1 Sequence Number: 2 Media Error Count: 11 Other Error Count: 5 Predictive Failure Count: 0 Last Predictive Failure Event Seq Number: 0 Raw Size: 238418MB [0x1d1a94a2 Sectors] Non Coerced Size: 237906MB [0x1d0a94a2 Sectors] Coerced Size: 237824MB [0x1d080000 Sectors] Firmware state: Online SAS Address(0): 0x1221000001000000 Connected Port Number: 1 Inquiry Data: ATA WDC WD2500JS-75N2E04 WD-WCANK9507278 PD: 2 Information Enclosure Device ID: N/A Slot Number: 2 Device Id: 2 Sequence Number: 2 Media Error Count: 0 Other Error Count: 0 Predictive Failure Count: 0 Last Predictive Failure Event Seq Number: 0 Raw Size: 238418MB [0x1d1a94a2 Sectors] Non Coerced Size: 237906MB [0x1d0a94a2 Sectors] Coerced Size: 237824MB [0x1d080000 Sectors] Firmware state: Online SAS Address(0): 0x1221000002000000 Connected Port Number: 2 Inquiry Data: ATA WDC WD2500JS-75N2E04 WD-WCANK9504713 PD: 3 Information Enclosure Device ID: N/A Slot Number: 3 Device Id: 3 Sequence Number: 2 Media Error Count: 0 Other Error Count: 0 Predictive Failure Count: 0 Last Predictive Failure Event Seq Number: 0 Raw Size: 238418MB [0x1d1a94a2 Sectors] Non Coerced Size: 237906MB [0x1d0a94a2 Sectors] Coerced Size: 237824MB [0x1d080000 Sectors] Firmware state: Online SAS Address(0): 0x1221000003000000 Connected Port Number: 3 Inquiry Data: ATA WDC WD2500JS-75N2E04 WD-WCANK9503028 PD: 4 Information Enclosure Device ID: N/A Slot Number: 4 Device Id: 4 Sequence Number: 2 Media Error Count: 0 Other Error Count: 0 Predictive Failure Count: 0 Last Predictive Failure Event Seq Number: 0 Raw Size: 238418MB [0x1d1a94a2 Sectors] Non Coerced Size: 237906MB [0x1d0a94a2 Sectors] Coerced Size: 237824MB [0x1d080000 Sectors] Firmware state: Online SAS Address(0): 0x1221000004000000 Connected Port Number: 4 Inquiry Data: ATA WDC WD2500JS-75N2E04 WD-WCANK9503793
解决方法
插槽1中的驱动器出现问题.它是RAID 5,因此您的数据受到保护,但您丢失了冗余(一个磁盘不可靠).介质错误意味着驱动器耗尽备用扇区以将坏扇区重新映射到(
http://kb.lsi.com/KnowledgebaseArticle15809.aspx
http://mycusthelp.info/LSI/_cs/AnswerDetail.aspx?inc=7468).如果是我的数据,我在备份时会倍加谨慎,移除驱动器,更换新驱动器并同步阵列.一些供应商(例如IBM)将根据预测性故障指标接受RMA,有些则不会.如果您的供应商不接受具有错误的,不可重映射的扇区的磁盘,则将其从阵列中取出并在测试系统中运行.它应该在合理的时间内失败.
编辑：
仅对于插槽ID为1的磁盘,介质事件不为零.在日志中,您提供了每个条目的插槽ID.
奇怪的是,尽管磁盘上有媒体错误,raid会将其状态报告为最佳状态.仍然’,我不相信磁盘.
使用相同大小的n个磁盘制作的RAID 5为您提供了(n-1)个磁盘的容量,因为它存储了一个磁盘的冗余数据.因此,如果您有六个250 GB磁盘和1T可用空间,则它们很可能分为5个磁盘RAID 5(可提供4×250 GB的可用空间)和1个备用磁盘.
