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xargs命令详解,iftop命令详解

时间:2023-05-05 10:50:38 阅读:18694 作者:2268

另一方面,MegaCli命令介绍MegaCli是管理维护硬件的RAID软件,可以显示RAID信息等

MegaCli的media error count 3360 other error count :

Medai Error Count表示磁盘可能错误,磁盘可能有坏路。 请注意,此值不是0。 数值越大,危险系数越高。

Other Error Count表示磁盘可能有松动,需要重新插入。 MegaCli可以测试阵列中的所有磁盘。

二、安装过程1、系统环境dmidecode-t1 ' egrep ' manufacturer ' product name '

cat /etc/redhat-release

验证制造商和产品型号以及“Serial Number”

2、检查有无rpm-QA//安装

3359 raw.github user content.com/crazy-zang cong/tools/master/mega CLI8. 07.10.tar.gz

FTP ://download2. boulder.IBM.com/ECC/sar/CMA/xsa/IBM _ utl _ sraidmr _ mega CLI-8.00.48 _ linu x

解压缩后有两个目录: windows和linux

[ root @ localhostmegacli8. 07.10 ] # treeLinux ((lib _ utils-1.00-09.noarch.rpm ) (-megaCLI-8.02.21-1.Noarch.rpm () )-mega CLI-8 6.bat [ root @ localhost Linux ] # rpm-iv hlib _ utils-1.00-09.noarch.rpmmegacli-8.02.21-1.noarch.rpm [

三、硬盘命令使用1、常用查询命令/opt/megaraid/mega CLI/mega CLI 64-LD info-Lall-aall【检查raid等级】/opt/megaraid/mega megaCLI64-PDlist-aall【硬盘信息】/opt/megaraid/mega CLI/mega CLI 64-adpbucmd-aall【显示电池信息】/opt mega CLI 64 -。 megaraid/mega CLI/mega CLI 64-adpcount【显示适配器数量】/opt/megaraid/mega CLI 64-adpcount【显示适配器数量】mega CLI 64-ADP getitiount megaCLI64-adpallinfo-aall【显示所有适配器信息】/opt/megaraid/megaraid mega CLI 64-LD info-Lall-aall【显示所有逻辑磁盘组信息】 megacli64-PDlist-aall【显示所有物理信息】/opt/megaraid mega CLI 64-adpbbucmd-getbbustatus-aall|grep‘charger stus’【 mega CLI 64-adpbucmmum megaraid/mega CLI/mega CLI 64-adpbbucmd-getbbucapacityinfo-aall【显示bbu容量信息】/opt/megaraid/memegararaid mega CLI 64-adpbbucmd-getbbudesigninfo-aall【显示bbu设计参数】/opt/megaraid/mega CLI/mega CLI 64-adpbbucmd-getbuproppopt

2、查看磁盘缓存策略/opt/MegaRA

ID/MegaCli/MegaCli64 -LDGetProp -Cache -L0 -a0【显示0 RAID卡 0 RAID组的缓存策略/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -L1 -a0【显示1 RAID卡 0 RAID组的缓存策略】/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -LALL -a0【显示所有RAID卡 0 RAID组的缓存策略】/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -LALL –aALL【显示所有 RAID卡 所有 RAID组的缓存策略】/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -DskCache -LALL -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

 

3、设置磁盘缓存策略

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.

 缓存策略解释:

WT (Write through)WB (Write back)NORA (No read ahead)RA (Read ahead)ADRA (Adaptive read ahead)C (Cached)D (Direct)

 

例子:
/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp WT|WB|NORA|RA|ADRA -L0 -a0
/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp -Cached|-Direct -L0 -a0
enable / disable disk cache
/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp -EnDskCache|-DisDskCache -L0 -a0

4、创建阵列

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
创建阵列,不指定热备
/opt/MegaRAID/MegaCli/MegaCli64 -CfgLdAdd -r5 [1:2,1:3,1:4] WB Direct -a0
创建一个raid10阵列,由物理盘2,3和4,5分别做raid1,在将两组raid1做raid0
/opt/MegaRAID/MegaCli/MegaCli64 –CfgSpanAdd –r10 –Array0[1:2,1:3] –Array1[1:4,1:5] WB Direct -a0

5、删除阵列

/opt/MegaRAID/MegaCli/MegaCli64 -CfgLdDel -L1 -a0

6、在线添加磁盘

/opt/MegaRAID/MegaCli/MegaCli64 -LDRecon -Start -r5 -Add -PhysDrv[1:4] -L1 -a0

7、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

8、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

9、指定第5块盘作为全局热备

/opt/MegaRAID/MegaCli/MegaCli64 -PDHSP -Set [-EnclAffinity] [-nonRevertible] -PhysDrv[1:5] -a0

10、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

11、删除全局热备

/opt/MegaRAID/MegaCli/MegaCli64 -PDHSP -Rmv -PhysDrv[1:5] -a0

12、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

13、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

14、磁盘状态的变化,从拔盘,到插盘过程中

Device |Normal|Damage|Rebuild|Normal
Virtual Drive |Optimal|Degraded|Degraded|Optimal
Physical Drive |Online|Failed –> Unconfigured|Rebuild|Online

四、其他命令说明 1、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

2、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

3、通过脚本检测RAID 磁盘状态 MEGACLI="/opt/MegaRAID/MegaCli/MegaCli64 "$MEGACLI -pdlist -aALL | grep "Firmware state" | awk -F : '{print $2}' | awk -F , '{print $1}'$MEGACLI -pdlist -aALL | grep -E "Media Error|Other Error" | awk -F : '{print $2}'

 

4、raid图解

图1、图2

 

 

转自:http://blog.51cto.com/hmtk520/2140657

转载于:https://www.cnblogs.com/xingxiz/p/10411248.html

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