Megacli基本操作

1. 常用命令：

#/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 | grep -E “^Slot|^Device Id|^Raw|^Inquiry Data|^Firmware|^Enclosure Dev|^Media Type”

#/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】

2. 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

3. 查看磁盘缓存策略

#/opt/MegaCli -LDGetProp -Cache -L0 -a0

or

#/opt/MegaCli -LDGetProp -Cache -L1 -a0

or

#/opt/MegaCli -LDGetProp -Cache -LALL -a0

or

#/opt/MegaCli -LDGetProp -Cache -LALL -aALL

or

#/opt/MegaCli -LDGetProp -DskCache -LALL -aALL

4.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/MegaCli -LDSetProp WT|WB|NORA|RA|ADRA -L0 -a0

or

#/opt/MegaCli -LDSetProp -Cached|-Direct -L0 -a0

or

enable / disable disk cache

#/opt/MegaCli -LDSetProp -EnDskCache|-DisDskCache -L0 -a0

/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp ADRA -L1 -a0 #adaptive read ahead

/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp CachedBadBBU -l1 -a0 #将vd1设置为即使BBU故障也强制writeback

/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp NoCachedBadBBU -l1 -a0 #将vd1设置为BBU故障时不writeback

/opt/MegaRAID/MegaCli/MegaCli64 -DiscardPreservedCache -Lall -a0 -NoLOG 【清空缓存】

5. 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/MegaCli -CfgLdAdd -r5 [1:2,1:3,1:4] WB Direct -Hsp[1:5] -a0

6. 创建阵列，不指定热备

#/opt/MegaCli -CfgLdAdd -r5 [1:2,1:3,1:4] WB Direct -a0

7. 删除阵列

#/opt/MegaCli -CfgLdDel -L1 -a0

8. 在线添加磁盘

#/opt/MegaCli -LDRecon -Start -r5 -Add -PhysDrv[1:4] -L1 -a0

9. 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/MegaCli -LDInit -ShowProg -LALL -aALL

或者以动态可视化文字界面显示

#/opt/MegaCli -LDInit -ProgDsply -LALL -aALL

10. 查看阵列后台初始化进度

#/opt/MegaCli -LDBI -ShowProg -LALL -aALL

或者以动态可视化文字界面显示

#/opt/MegaCli -LDBI -ProgDsply -LALL -aALL

11. 指定第 5 块盘作为全局热备

#/opt/MegaCli -PDHSP -Set [-EnclAffinity] [-nonRevertible] -PhysDrv[1:5] -a0

12. 指定为某个阵列的专用热备

#/opt/MegaCli -PDHSP -Set [-Dedicated [-Array1]] [-EnclAffinity] [-nonRevertible] -PhysDrv[1:5] -a0

13. 删除全局热备

#/opt/MegaCli -PDHSP -Rmv -PhysDrv[1:5] -a0

14. 将某块物理盘下线/上线

#/opt/MegaCli -PDOffline -PhysDrv [1:4] -a0

15. 查看物理磁盘重建进度

#/opt/MegaCli -PDRbld -ShowProg -PhysDrv [1:5] -a0

或者以动态可视化文字界面显示

#/opt/MegaCli -PDRbld -ProgDsply -PhysDrv [1:5] -a0