故障现象 （阵列Foreign 系统下重做阵列）

例：四合一机器(DELL_XENCOMPA09) 有四个硬盘

如图 少认到一个

df  -h 

fdisk -l 2>/dev/null | grep ‘Disk /dev/‘  -c

/opt/MegaRAID/MegaCli/MegaCli64   -LdInfo -Lall –aALL  可以确认认到几个盘

查看1

cat /proc/scsi/scsi

dmesg |grep -i raid

1.查看RAID卡的设备号

/opt/MegaRAID/MegaCli/MegaCli64  -PDList -aAll |grep "Device ID"

 2.查看Slot ID，有没有错序的情况

/opt/MegaRAID/MegaCli/MegaCli64  -PDList -aAll |grep "Slot"

3.查看Foreign信息

/opt/MegaRAID/MegaCli/MegaCli64  -PDList -aAll |grep "Foreign State"

4.清除Foreign信息

/opt/MegaRAID/MegaCli/MegaCli64 -CfgForeign -Clear -a0

5．再查看

/opt/MegaRAID/MegaCli/MegaCli64  -PDList -aAll |grep "Foreign State"

6重新做RAID，在Slot2做RAID0

7确认认到4个

fdisk -l 2>/dev/null | grep ‘Disk /dev/‘  -c

fdisk -l 2>/dev/null | grep ‘Disk /dev/‘ 

/opt/MegaRAID/MegaCli/MegaCli64   -LdInfo -Lall –aALL  可以确认认到几个盘

DELL阵列（阵列Foreign）命令行里重做阵列