二、 下载、安装 MegCli 下载地址：wget
http://img.aikaiyuan.com/2014/12/ibm_utl_sraidmr_megacli-8.00.48_linux_32-64.zip
#unzip ibm_utl_sraidmr_megacli-8.00.48_linux_32-64.zip #cd linux
#rpm -ivh Lib_Utils-1.00-09.noarch.rpm MegaCli-8.00.48-1.i386.rpm
#rpm -ivh MegaCli-8.00.48-1.i386.rpm
#故障硬盘修复（添加新硬盘或阵列）
#-PDMakeGood是改变状态由Unconfigured bad变成Unconfigured good
#-PhysDrv[252:2] 是硬盘信息[]内第一个数字是Enclosure Device ID，第二个数字是Slot Number #-a0 是Adapter #0
1./opt/MegaRAID/MegaCli/MegaCli64 -PDMakeGood -PhysDrv[252:2] -a0 #硬盘变为Unconfigured good之后加入阵列
2./opt/MegaRAID/MegaCli/MegaCli64 -LDRecon -Start -r5 -Add -PhysDrv[252:2] -L0 -a0 3.等待重建，大约需要2小时
Reconstruction : Completed 0%, Taken 1 min.
使用/opt/MegaRAID/MegaCli/MegaCli64命令会在当前目录生成日志文件可以加上 -NoLog参数取消日志
三 使用命令及参数
命令使用：
#/opt/MegaRAID/MegaCli/MegaCli64 -LDInfo -Lall -aALL 查raid级别 #/opt/MegaRAID/MegaCli/MegaCli64 -AdpAllInfo -aALL 查raid卡信息 #/opt/MegaRAID/MegaCli/MegaCli64 -PDList -aALL 查看硬盘信息 #/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -aAll 查看电池信息
#/opt/MegaRAID/MegaCli/MegaCli64 -FwTermLog -Dsply -aALL 查看raid卡日志
#/opt/MegaRAID/MegaCli/MegaCli64 -adpCount 【显示适配器个数】
#/opt/MegaRAID/MegaCli/MegaCli64 -AdpGetTime –aALL 【显示适配器时间】 #/opt/MegaRAID/MegaCli/MegaCli64 -AdpAllInfo -aAll 【显示所有适配器信息】
#/opt/MegaRAID/MegaCli/MegaCli64 -LDInfo -LALL -aAll 【显示所有逻辑磁盘组信息】
#/opt/MegaRAID/MegaCli/MegaCli64 -PDList -aAll 【显示所有的物理信息】 #/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuStatus -aALL |grep ‘Charger Status’ 【查看充电状态】
#/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuStatus -aALL【显示BBU状态信息】
#/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuCapacityInfo -aALL【显示BBU容量信息】
#/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuDesignInfo -aALL 【显示BBU设计参数】
#/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuProperties -aALL 【显示当前BBU属性】
#/opt/MegaRAID/MegaCli/MegaCli64 -cfgdsply -aALL 【显示Raid卡型号，Raid设置，Disk相关信息】
3.磁带状态的变化，从拔盘，到插盘的过程中。 Device |Normal|Damage|Rebuild|Normal
Virtual Drive |Optimal|Degraded|Degraded|Optimal
Physical Drive |Online|Failed –> Unconfigured|Rebuild|Online 4.查看磁盘缓存策略
#/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -L0 -a0 or
#/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -L1 -a0 or
#/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -LALL -a0 ro
#/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -LALL -aALL ro
#/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -DskCache -LALL -aALL 5.设置磁盘缓存策略 缓存策略解释：
WT (Write through WB (Write back)
NORA (No read ahead) RA (Read ahead)
ADRA (Adaptive read ahead) Cached Direct 例子：
#/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp WT|WB|NORA|RA|ADRA -L0 -a0 or
#/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp -Cached|-Direct -L0 -a0 or
enable / disable disk cache
#/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp -EnDskCache|-DisDskCache -L0 -a0
6.创建一个 raid5 阵列，由物理盘 2,3,4 构成，该阵列的热备盘是物理盘 5 #/opt/MegaRAID/MegaCli/MegaCli64 -CfgLdAdd -r5 [1:2,1:3,1:4] WB Direct -Hsp[1:5] -a0
7.创建阵列，不指定热备
#/opt/MegaRAID/MegaCli/MegaCli64 -CfgLdAdd -r5 [1:2,1:3,1:4] WB Direct -a0
8.删除阵列
#/opt/MegaRAID/MegaCli/MegaCli64 -CfgLdDel -L1 -a0 9.在线添加磁盘
#/opt/MegaRAID/MegaCli/MegaCli64 -LDRecon -Start -r5 -Add -PhysDrv[1:4] -L1 -a0
10.阵列创建完后，会有一个初始化同步块的过程，可以看看其进度。 #/opt/MegaRAID/MegaCli/MegaCli64 -LDInit -ShowProg -LALL -aALL 或者以动态可视化文字界面显示
#/opt/MegaRAID/MegaCli/MegaCli64 -LDInit -ProgDsply -LALL -aALL 11.查看阵列后台初始化进度
#/opt/MegaRAID/MegaCli/MegaCli64 -LDBI -ShowProg -LALL -aALL 或者以动态可视化文字界面显示
#/opt/MegaRAID/MegaCli/MegaCli64 -LDBI -ProgDsply -LALL -aALL 12.指定第 5 块盘作为全局热备
#/opt/MegaRAID/MegaCli/MegaCli64 -PDHSP -Set [-EnclAffinity] [-nonRevertible] -PhysDrv[1:5] -a0 13.指定为某个阵列的专用热备
#/opt/MegaRAID/MegaCli/MegaCli64 -PDHSP -Set [-Dedicated [-Array1]] [-EnclAffinity] [-nonRevertible] -PhysDrv[1:5] -a0 14.删除全局热备
#/opt/MegaRAID/MegaCli/MegaCli64 -PDHSP -Rmv -PhysDrv[1:5] -a0 15.将某块物理盘下线/上线
#/opt/MegaRAID/MegaCli/MegaCli64 -PDOffline -PhysDrv [1:4] -a0 #/opt/MegaRAID/MegaCli/MegaCli64 -PDOnline -PhysDrv [1:4] -a0 16.查看物理磁盘重建进度
#/opt/MegaRAID/MegaCli/MegaCli64 -PDRbld -ShowProg -PhysDrv [1:5] -a0 或者以动态可视化文字界面显示
#/opt/MegaRAID/MegaCli/MegaCli64 -PDRbld -ProgDsply -PhysDrv [1:5] -a0
磁带状态的变化，从拔盘，到插盘的过程中： Device |Normal|Damage|Rebuild|Normal
Virtual Drive |Optimal|Degraded|Degraded|Optimal
Physical Drive |Online|Failed –> Unconfigured|Rebuild|Online 1、 查看RAID级别