浪潮MegaCli

再总结：

一般，清RAID再做RAID，安装完毕后：

./MegaCli64 -PDList -aALL | egrep 'Slot|Enclosure Device'                       查看背板和硬盘位置

./MegaCli64 -ldinfo -lall -a0 | egrep 'Virtual|RAID'                                      查看RAID状态

./MegaCli64  -cfglddel -l0 -a0 或者 ./MegaCli64  -cfglddel -l1 -a0             删除RAID，此处要注意，因为有个RAID应该是系统盘，一般不删。

 ./MegaCli64  -CfgLdadd -r5[252:0,252:1,252:2, 252:3] -a0                      创建RAID，此处给的例子是用四块硬盘创建RAID5

安装megacli：

现将rpm包上传到节点上，

然后安装：[root@localhost ~]# rpm -ivh MegaCli-8.07.07-1.noarch.rpm ，megacli程序自动安装到/opt/MegaRAID/MegaCli目录下。

注：开机自检时，使用ctrl+y也可直接进入命令行配置界面。ctrl+y进入命令行后需要区分大小写，系统下megacli不需要区分大小写。

1、使用./MegaCli64 –help或者./Megacli64 –h查看命令帮助

2、查看硬盘列表

[root@localhost MegaCli]# ./MegaCli64 -PDList -aALL

其中：Enclosure Device ID: 252----背板

Slot Number: 0-----硬盘位置

Firmware state: Unconfigured(good), Spun Up---显示硬盘状态，单独硬盘还是raid中，Firmware state: Online, Spun Up（raid中）

3、查看raid状态

[root@node-23 MegaCli]# ./MegaCli64 -ldinfo -lall -a0 | more

Adapter 0 -- Virtual Drive Information:
Virtual Drive: 0 (Target Id: 0)
Name :
RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0
Size : 2.728 TB
Sector Size : 512
Is VD emulated : No
Mirror Data : 2.728 TB
State : Optimal
Strip Size : 256 KB
Number Of Drives : 2
Span Depth : 1
Default Cache Policy: WriteThrough, ReadAhead, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteThrough, ReadAhead, Direct, No Write Cache if Bad BBU
Default Access Policy: Read/Write
Current Access Policy: Read/Write
Disk Cache Policy : Disk's Default
Encryption Type : None
PI type: No PI

Is VD Cached: No

Virtual Drive: 1 (Target Id: 1)
Name :
RAID Level : Primary-5, Secondary-0, RAID Level Qualifier-3
Size : 24.556 TB
Sector Size : 512
Is VD emulated : No
Parity Size : 2.728 TB
State : Optimal
Strip Size : 256 KB
Number Of Drives : 10
Span Depth : 1
Default Cache Policy: WriteThrough, ReadAhead, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteThrough, ReadAhead, Direct, No Write Cache if Bad BBU
Default Access Policy: Read/Write
Current Access Policy: Read/Write
Disk Cache Policy : Disk's Default
Encryption Type : None
PI type: No PI

Is VD Cached: No

Exit Code: 0x00
分别查看：[root@node-23 MegaCli]# ./MegaCli64 -ldinfo -l0 -a0

[root@node-23 MegaCli]# ./MegaCli64 -ldinfo -l1 -a0

查看Raid状态以及raid中包含哪些硬盘：

[root@node-23 MegaCli]# ./MegaCli64 -ldpdinfo -a0

Adapter #0

Number of Virtual Disks: 2
Virtual Drive: 0 (Target Id: 0)
……………………………………………………#第一块Virtual Drive

Is VD Cached: No
Number of Spans: 1
Span: 0 - Number of PDs: 2

PD: 0 Information
………………………………

PD: 1 Information

……………………………

Virtual Drive: 1 (Target Id: 1)

………………………………………………#第二块Virtual Drive

Is VD Cached: No
Number of Spans: 1
Span: 0 - Number of PDs: 10

PD: 0 Information
………………………………

~

PD: 9 Information

……………………………

Exit Code: 0x00

4、显示Raid卡型号，Raid设置，Disk相关信息   #/opt/MegaRAID/MegaCli/MegaCli64 -cfgdsply -aALL

5、查看raid卡日志   #/opt/MegaRAID/MegaCli/MegaCli64 -FwTermLog -Dsply -aALL

6、查看RAID阵列中掉线的盘   /opt/MegaRAID/MegaCli/MegaCli64 -pdgetmissing -a0

7、删除raid

[root@localhost MegaCli]# ./MegaCli64  -cfglddel -l0 -a0

[root@localhost MegaCli]# ./MegaCli64  -cfglddel -l1 -a0

8、创建raid

[root@localhost MegaCli]# ./MegaCli -CfgLdAdd -rX[E0:S0,E1:S1,...] [WT|WB] [NORA|RA|ADRA] [Direct|Cached] [CachedBadBBU|NoCachedBadBBU] [-szXXX [-szYYY ...]] [-strpszM] [-Hsp[E0:S0,...]] [-AfterLdX] [-Force]|[FDE|CtrlBased] –aN

非红色部分，如果不填写则使用默认配置，如背板显示不出来，则使用空格代替即可。

e.g. 使用四块硬盘创建一个raid5

[root@localhost MegaCli]# ./MegaCli64  -CfgLdadd -r5[252:0,252:1,252:2, 252:3] -a0

查看背板和硬盘位置可用命令：./MegaCli64 -PDList -aALL | egrep 'Slot|Enclosure Device'

【其它】

1、 做热备

【root@localhost MegaCli]# ./MegaCli64  -pdhsp -set -physdrv[252:3] -a0

Adapter: 0: Set Physical Drive at EnclId-252 SlotId-3 as Hot Spare Success.

Exit Code: 0x00

查看热备盘状态：Firmware state: Hotspare, Spun Up

热备盘删除

./MegaCli64 -PDHSP -Rmv  -PhysDrv[Ex：Sx] –aALL

5、uncfgure bad硬盘改成uncfgure good硬盘

MegaCli -PDMakeGood -PhysDrv[E0:S0,E1:S1,...] | [-Force] -aN|-a0,1,2|-aALL

Uncfgure bad状态硬盘，无法对其进行操作。

6、删除foreign信息

MegaCli -CfgForeign -Scan | [-SecurityKey sssssssssss] -aN|-a0,1,2|-aALL

MegaCli -CfgForeign -Clear [x]|[-SecurityKey sssssssssss] -aN|-a0,1,2|-aALL

x - index of foreign configurations. Optional. All by default.

7、如何做rebuild

如有热备盘，硬盘掉线后，热备盘会自动rebuild。

热备盘自动rebuid

Enclosure Device ID: 252

Slot Number: 2

Device Id: 178

Sequence Number: 6

Media Error Count: 0

Other Error Count: 0

Predictive Failure Count: 0

Last Predictive Failure Event Seq Number: 0

PD Type: SATA

Raw Size: 931.512 GB [0x74706db0 Sectors]

Non Coerced Size: 931.012 GB [0x74606db0 Sectors]

Coerced Size: 930.390 GB [0x744c8000 Sectors]

Firmware state: Rebuild

SAS Address(0): 0x9281c0667817c71

Connected Port Number: 2(path0)

Inquiry Data:             9WK0BXZLST31000524NS                            SN11

FDE Capable: Not Capable

FDE Enable: Disable

Secured: Unsecured

Locked: Unlocked

Needs EKM Attention: No

Foreign State: None

Device Speed: 3.0Gb/s

Link Speed: 3.0Gb/s

Media Type: Hard Disk Device

使用MegaCli -PDRbld -ShowProg -PhysDrv [E0:S0,E1:S1,...] -aN|-a0,1,2|-aALL来查看硬盘rebuild进程。

Rebuid结束后，掉线槽位硬盘更换后，自动从热备拷回数据，原热备盘再次变成热备盘，

Enclosure Device ID: 252

Slot Number: 1

Device Id: 179

Sequence Number: 2

Media Error Count: 0

Other Error Count: 0

Predictive Failure Count: 0

Last Predictive Failure Event Seq Number: 0

PD Type: SATA

Raw Size: 931.512 GB [0x74706db0 Sectors]

Non Coerced Size: 931.012 GB [0x74606db0 Sectors]

Coerced Size: 930.390 GB [0x744c8000 Sectors]

Firmware state: Copyback

SAS Address(0): 0x9281c06595f6f7c

Connected Port Number: 1(path0)

Inquiry Data:             9WK046MWST31000524NS                            SN11

FDE Capable: Not Capable

FDE Enable: Disable

Secured: Unsecured

Locked: Unlocked

Needs EKM Attention: No

Foreign State: None

Device Speed: 3.0Gb/s

Link Speed: 3.0Gb/s

Media Type: Hard Disk Device

热备盘在rebuid过程中，更换掉线槽位硬盘，查看该硬盘是否有media error即可，确认硬盘为uncfgure good状态，一般RAID卡都可以copyback,后续硬盘会自动从原热备盘拷回数据。

但是考虑到存在无法copyback的情况，在热备盘rebuild完成后再更换硬盘。

无热备盘情况，更换新硬盘，如果自动rebuild，则正常结束即可，如不自动rebuild，可以配置成热备盘。