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2022-09-22
MegaCli 监控raid状态
简介
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、 -MegCli,目前针对公司DB数据库是IBM的服务器,直接从IBM官方-,如果
其它服务器的,使用各官方-或者 LSI网站上进行相关-。一般来说,是通用的。这个包适用32 /64位操作系统平台
-: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|NormalVirtual Drive |Optimal|Degraded|Degraded|OptimalPhysical Drive |Online|Failed –> Unconfigured|Rebuild|Online4.查看磁盘缓存策略#/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -L0 -a0or#/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -L1 -a0or#/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -LALL -a0ro#/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -LALL -aALLro#/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -DskCache -LALL -aALL5.设置磁盘缓存策略缓存策略解释:WT (Write throughWB (Write back)NORA (No read ahead)RA (Read ahead)ADRA (Adaptive read ahead)CachedDirect例子:#/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp WT|WB|NORA|RA|ADRA -L0 -a0or#/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp -Cached|-Direct -L0 -a0orenable / disable disk cache#/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp -EnDskCache|-DisDskCache -L0 -a06.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] -a07.创建阵列,不指定热备#/opt/MegaRAID/MegaCli/MegaCli64 -CfgLdAdd -r5 [1:2,1:3,1:4] WB Direct -a08.删除阵列#/opt/MegaRAID/MegaCli/MegaCli64 -CfgLdDel -L1 -a09.在线添加磁盘#/opt/MegaRAID/MegaCli/MegaCli64 -LDRecon -Start -r5 -Add -PhysDrv[1:4] -L1 -a010.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 -aALL11.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 -aALL12.指定第 5 块盘作为全局热备#/opt/MegaRAID/MegaCli/MegaCli64 -PDHSP -Set [-EnclAffinity] [-nonRevertible] -PhysDrv[1:5] -a013.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] -a014.删除全局热备#/opt/MegaRAID/MegaCli/MegaCli64 -PDHSP -Rmv -PhysDrv[1:5] -a015.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] -a016.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|NormalVirtual Drive |Optimal|Degraded|Degraded|OptimalPhysical Drive |Online|Failed –> Unconfigured|Rebuild|Online
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-0Size : 1.086 TBState : OptimalStrip Size : 128 KBNumber 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|-aALLMegaCli -AdpBbuCmd -GetBbuStatus -aALL
查看电池容量(Display BBU Capacity Information)MegaCli -AdpBbuCmd -GetBbuCapacityInfo -aN|-a0,1,2|-aALLMegaCli -AdpBbuCmd -GetBbuCapacityInfo –aALL
查看电池设计参数(Display BBU Design Parameters)MegaCli -AdpBbuCmd -GetBbuDesignInfo -aN|-a0,1,2|-aALLMegaCli -AdpBbuCmd -GetBbuDesignInfo –aALL
查看电池属性(Display Current BBU Properties)MegaCli -AdpBbuCmd -GetBbuProperties -aN|-a0,1,2|-aALLMegaCli -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|-aALLMegaCli -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|-aALLDisplays 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 APIMegaCli -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 -aAllCritical 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 -aAllMedia Error Count: 0Other Error Count: 0查看充电状态: MegaCli -AdpBbuCmd -GetBbuStatus -aALLLearn Cycle Requested : NoFully 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 PolicyCurrent Cache Policy: WriteBack, ReadAheadNone, Direct, Write Cache OK if Bad BBU查看充电进度百分比: MegaCli -AdpBbuCmd -GetBbuStatus -aALL 各种设备和磁盘的不同状态:Device |Normal|Damage|Rebuild|NormalVirtual Drive |Optimal|Degraded|Degraded|OptimalPhysical Drive |Online|Failed –> Unconfigured|Rebuild|Online
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
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
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