MegaCli 监控raid状态

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MegaCli 监控raid状态

来源:网络
更新日期:2020-07-02

摘要：建站服务器 MegaCli是一款管理维护硬件RAID软件，可以通过它来了解当前raid卡的所有信息，包括 raid卡的型号，raid的阵列类型，raid 上各磁盘状

建站服务器

MegaCli是一款管理维护硬件RAID软件，可以通过它来了解当前raid卡的所有信息，包括 raid卡的型号，raid的阵列类型，raid 上各磁盘状态，等等。通常，我们对硬盘当前的状态不太好确定，一般通过机房人员巡检来完成，有没有通过软件的方式来检查确定这个问题呢。MegaCli就可以做到，一般通过 MegaCli 的Media Error Count: 0 Other Error Count: 0 这两个数值来确定阵列中磁盘是否有问题；Medai Error Count 表示磁盘可能错误，可能是磁盘有坏道，这个值不为0值得注意，数值越大，危险系数越高，Other Error Count 表示磁盘可能存在松动，可能需要重新再插入。MegaCli 可以对阵列中所有的磁盘进行检测，我们可以通过脚本的方式来检测相关参数，从而通知管理人员。

一、下载MegCli,目前针对公司DB数据库是IBM的服务器，直接从IBM官方下载，如果

其它服务器的，使用各官方下载或者 LSI网站上进行相关下载。一般来说，是通用的。这个包适用32 /64位操作系统平台

下载地址：ftp://download2.boulder.ibm.com/ecc/sar/CMA/XSA/ibm_utl_sraidmr_megacli-8.00.48_linux_32-64.zip

二、安装

#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

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

1、查看RAID级别

2、查看RAID卡信息，主要输出RAID卡的一些配置信息

RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0
Size : 1.086 TB
State : Optimal
Strip Size : 128 KB
Number Of Drives per span:4 //表示每4个物理盘做成一个RAID1盘组
Span Depth : 2 //表示共2个RAID1盘组做成了RAID10

3、查看所有硬盘的信息

/opt/MegaCli64 -pdlist –aALL

4、查看当前raid缓存状态，raid缓存状态设置为wb的话要注意电池放电事宜，设置电池放电模式为自动学习模式

/opt/MegaRAID/MegaCli/MegaCli64 -ldgetprop -dskcache -lall -aall

5、 raid 电池设置相关

查看电池状态信息(Display BBU Status Information)
MegaCli -AdpBbuCmd -GetBbuStatus -aN|-a0,1,2|-aALL
MegaCli -AdpBbuCmd -GetBbuStatus -aALL

查看电池容量（Display BBU Capacity Information）
MegaCli -AdpBbuCmd -GetBbuCapacityInfo -aN|-a0,1,2|-aALL
MegaCli -AdpBbuCmd -GetBbuCapacityInfo –aALL

查看电池设计参数(Display BBU Design Parameters)
MegaCli -AdpBbuCmd -GetBbuDesignInfo -aN|-a0,1,2|-aALL
MegaCli -AdpBbuCmd -GetBbuDesignInfo –aALL

查看电池属性（Display Current BBU Properties）
MegaCli -AdpBbuCmd -GetBbuProperties -aN|-a0,1,2|-aALL
MegaCli -AdpBbuCmd -GetBbuProperties –aALL

设置电池为学习模式为循环模式（Start BBU Learning Cycle）
Description Starts the learning cycle on the BBU.
No parameter is needed for this option.
MegaCli -AdpBbuCmd -BbuLearn -aN|-a0,1,2|-aALL

设置磁盘的缓存模式和访问方式（Change Virtual Disk Cache and Access Parameters）
Description Allows you to change the following virtual disk parameters:
-WT (Write through), WB (Write back): Selects write policy.
-NORA (No read ahead), RA (Read ahead), ADRA (Adaptive read ahead): Selects read policy.
-Cached, -Direct: Selects cache policy.
-RW, -RO, Blocked: Selects access policy.
-EnDskCache: Enables disk cache.
-DisDskCache: Disables disk cache.
MegaCli -LDSetProp { WT | WB|NORA |RA | ADRA|-Cached|Direct} |
{-RW|RO|Blocked} |
{-Name[string]} |
{-EnDskCache|DisDskCache} –Lx |
-L0,1,2|-Lall -aN|-a0,1,2|-aALL
MegaCli -LDSetProp WT -L0 -a0

显示磁盘缓存和访问方式（Display Virtual Disk Cache and Access Parameters）
MegaCli -LDGetProp -Cache | -Access | -Name | -DskCache -Lx|-L0,1,2|
-Lall -aN|-a0,1,2|-aALL
Displays the cache and access policies of the virtual disk(s):
-WT (Write through), WB (Write back): Selects write policy.
-NORA (No read ahead), RA (Read ahead), ADRA (Adaptive read ahead): Selects read policy.
-Cache, -Cached, Direct: Displays cache policy.
-Access, -RW, -RO, Blocked: Displays access policy.
-DskCache: Displays physical disk cache policy.

Megaraid 必知必会使用LSI的megaraid可以对raid进行有效监控。别的厂商比如HP,IBM也有自己的raid API
MegaCli -ldinfo -lall -aall
查询raid级别，磁盘数量，容量，条带大小。
MegaCli -cfgdsply -aALL |grep Policy
查询控制器cache策略
MegaCli -LDSetProp WB -L0 -a0
设置write back功能
MegaCli -LDSetProp CachedBadBBU -L0 -a0
设置即使电池坏了还是保持WB功能
MegaCli -AdpBbuCmd -BbuLearn a0
手动充电
MegaCli -FwTermLog -Dsply -aALL
查询日志

显示适配器个数： MegaCli -adpCount

显示所有适配器信息： MegaCli -AdpAllInfo -aAll
Critical Disks : 0
Failed Disks : 0

显示所有逻辑磁盘组信息： MegaCli -LDInfo -LALL -aAll
显示所有的物理信息： MegaCli -PDList -aAll
Media Error Count: 0
Other Error Count: 0

查看充电状态： MegaCli -AdpBbuCmd -GetBbuStatus -aALL
Learn Cycle Requested : No
Fully Charged : Yes

显示BBU(后备电池)状态信息： MegaCli -AdpBbuCmd -GetBbuStatus -aALL
显示BBU容量信息： MegaCli -AdpBbuCmd -GetBbuCapacityInfo -aALL
显示BBU设计参数： MegaCli -AdpBbuCmd -GetBbuDesignInfo -aALL
显示当前BBU属性： MegaCli -AdpBbuCmd -GetBbuProperties -aALL
显示Raid卡型号，Raid设置，Disk相关信息： MegaCli -cfgdsply -aALL
查看Cache 策略设置： MegaCli -cfgdsply -aALL |grep -i Policy
Current Cache Policy: WriteBack, ReadAheadNone, Direct, Write Cache OK if Bad BBU
查看充电进度百分比： MegaCli -AdpBbuCmd -GetBbuStatus -aALL

6、通过脚本检测RAID 磁盘状态

Linux下脚本

#!/bin/bash #check raid disk status MEGACLI=/opt/MegaRAID/MegaCli/MegaCli64 $MEGACLI -pdlist -aALL | grep Firmware state | awk -F : \'{print $2}\' | awk -F , \'{print $1}\' >/tmp/fireware.log $MEGACLI -pdlist -aALL | grep -E Media Error|Other Error | awk -F : \'{print $2}\' >/tmp/disk.log for i in `cat < /tmp/disk.log` do if [ $i -ne 0 ] then curl http://xxxxxxB&state=ALARM&description=raid_disk_error fi done for i in `cat < /tmp/fireware.log` do if [ $i != Online ] then curl http://xxxxxxstate=ALARM&description=raid_disk_offline fi done

#!/bin/bash

#check raid disk status

MEGACLI=/opt/MegaRAID/MegaCli/MegaCli64

$MEGACLI -pdlist -aALL | grep Firmware state | awk -F : \'{print $2}\' | awk -F , \'{print $1}\' >/tmp/fireware.log

$MEGACLI -pdlist -aALL | grep -E Media Error|Other Error | awk -F : \'{print $2}\' >/tmp/disk.log

for i in `cat < /tmp/disk.log`

if [ $i -ne 0 ]

then

curl http://xxxxxxB&state=ALARM&description=raid_disk_error

done

for i in `cat < /tmp/fireware.log`

if [ $i != Online ]

then

curl http://xxxxxxstate=ALARM&description=raid_disk_offline

done

Windows 下脚本

Windows下脚本用的工具是gnu for windows平台的一些软件，如 bash grep awk cat

通过bash直接调用脚本

如：G:\\raid_check\\unixtools>bash.exe G:\\disk.sh

#check raid disk status MEGACLI=//G/raid_check/MegaCli.exe GREP=//G/raid_check/unixtools/grep.exe AWK=//G/raid_check/unixtools/awk.exe CAT=//G/raid_check/unixtools/cat.exe CURL=//G/raid_check/unixtools/curl.exe $MEGACLI -pdlist -aALL | $GREP Firmware state |$AWK -F: \'{print $2}\' |$AWK -F , \'{print $1}\' >//c/fireware.log $MEGACLI -pdlist -aALL | $GREP -E Media Error|Other Error | $AWK -F : \'{print $2}\' > //c/disk.log for i in `$CAT c:/disk.log` do if [ $i -ne 0 ] then $CURL http://xxxxxx&description=raid_disk_error fi done for i in `$CAT c:/fireware.log` do if [ $i != Online ] then $CURL http://xxxxx&state=ALARM&description=raid_disk_offline fi

#check raid disk status

MEGACLI=//G/raid_check/MegaCli.exe

GREP=//G/raid_check/unixtools/grep.exe

AWK=//G/raid_check/unixtools/awk.exe

CAT=//G/raid_check/unixtools/cat.exe

CURL=//G/raid_check/unixtools/curl.exe

$MEGACLI -pdlist -aALL | $GREP Firmware state |$AWK -F: \'{print $2}\' |$AWK -F , \'{print $1}\' >//c/fireware.log

$MEGACLI -pdlist -aALL | $GREP -E Media Error|Other Error | $AWK -F : \'{print $2}\' > //c/disk.log

for i in `$CAT c:/disk.log`

if [ $i -ne 0 ]

then

$CURL http://xxxxxx&description=raid_disk_error

done

for i in `$CAT c:/fireware.log`

if [ $i != Online ]

then

$CURL http://xxxxx&state=ALARM&description=raid_disk_offline