操作系统自带的命令查看RAID：
软件raid：查看raid级别，状态等信息 【生产环境没人敢用软raid，除非他不想干了】
# cat/proc/mdstat
硬件raid：查看raid的厂商，型号，级别
# dmesg |grep -i raid
# cat/proc/scsi/scsi
DELL服务器 使用MegaCli64查看RAID：
安装
# rpm-ivh MegaCli64-8.07.14-1.noarch.rpm
默认是安装到/opt/MegaRAID目录下了。
cd /opt/MegaRAID/MegaCli
执行./MegaCli64 -LDInfo -LAll-aAll ----> 常用
#./MegaCli64 -LDInfo -Lall -aALL 查raid级别
#./MegaCli64-AdpAllInfo -aALL 查raid卡信息
#./MegaCli64 -PDList -aALL 查看硬盘信息 ----> 常用
#./MegaCli64 -AdpBbuCmd -aAll 查看电池信息
#./MegaCli64-FwTermLog -Dsply -aALL 查看raid卡日志
#./MegaCli64-adpCount 【显示适配器个数】
#./MegaCli64-AdpGetTime –aALL 【显示适配器时间】
#./MegaCli64-AdpAllInfo -aAll 【显示所有适配器信息】
#./MegaCli64-LDInfo -LALL -aAll 【显示所有逻辑磁盘组信息】
#./MegaCli64-PDList -aAll 【显示所有的物理信息】
#./MegaCli64-AdpBbuCmd -GetBbuStatus -aALL |grep ‘Charger Status‘ 【查看充电状态】
#./MegaCli64-AdpBbuCmd -GetBbuStatus -aALL【显示BBU状态信息】
#./MegaCli64-AdpBbuCmd -GetBbuCapacityInfo -aALL【显示BBU容量信息】
#./MegaCli64-AdpBbuCmd -GetBbuDesignInfo -aALL 【显示BBU设计参数】
#./MegaCli64-AdpBbuCmd -GetBbuProperties -aALL 【显示当前BBU属性】
#./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
VirtualDrive |Optimal|Degraded|Degraded|Optimal
PhysicalDrive |Online|Failed –>Unconfigured|Rebuild|Online
4.查看磁盘缓存策略
#./MegaCli64-LDGetProp -Cache -L0 -a0
or
#./MegaCli64-LDGetProp -Cache -L1 -a0
or
#./MegaCli64-LDGetProp -Cache -LALL -a0
ro
#./MegaCli64-LDGetProp -Cache -LALL -aALL
ro
#./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：
#./MegaCli64-LDSetProp WT|WB|NORA|RA|ADRA -L0 -a0
or
#./MegaCli64-LDSetProp -Cached|-Direct -L0 -a0
or
enable /disable disk cache
#./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
#./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
#./MegaCli64-CfgLdAdd -r5 [1:2,1:3,1:4] WB Direct -a0
8.删除阵列
#./MegaCli64-CfgLdDel -L1 -a0
9.在线添加磁盘
#./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。
#./MegaCli64-LDInit -ShowProg -LALL -aALL
或者以动态可视化文字界面显示
#./MegaCli64-LDInit -ProgDsply -LALL -aALL
11.查看阵列后台初始化进度
#./MegaCli64-LDBI -ShowProg -LALL -aALL
或者以动态可视化文字界面显示
#./MegaCli64-LDBI -ProgDsply -LALL -aALL
12.指定第5 块盘作为全局热备
#./MegaCli64-PDHSP -Set [-EnclAffinity] [-nonRevertible] -PhysDrv[1:5] -a0
13.指定为某个阵列的专用热备
#./MegaCli64-PDHSP -Set [-Dedicated [-Array1]] [-EnclAffinity] [-nonRevertible]-PhysDrv[1:5] -a0
14.删除全局热备
#./MegaCli64-PDHSP -Rmv -PhysDrv[1:5] -a0
15.将某块物理盘下线/上线
#./MegaCli64-PDOffline -PhysDrv [1:4] -a0
#./MegaCli64-PDOnline -PhysDrv [1:4] -a0
16.查看物理磁盘重建进度
#./MegaCli64-PDRbld -ShowProg -PhysDrv [1:5] -a0
或者以动态可视化文字界面显示
#./MegaCli64-PDRbld -ProgDsply -PhysDrv [1:5] -a0
HP服务器 使用hpacucli查看RAID：
软件：hpacucli-9.40-12.0.x86_64.rpm
默认安装到/opt/compaq/hpacucli/bld
cd /opt/compaq/hpacucli/bld
./hpacucli ctrl all show config detail ----> 常用
结果如下：
SmartArray P400 in Slot 2
Bus Interface: PCI
Slot: 2
Serial Number: PAFGK0T9SXL0WU
Cache Serial Number: PA2270J9SXM13V
RAID 6 (ADG) Status: Enabled
Controller Status: OK
Hardware Revision: E
Firmware Version: 7.22
Rebuild Priority: Medium
Expand Priority: Medium
Surface Scan Delay: 15 secs
Surface Scan Mode: Idle
Wait for Cache Room: Disabled
Surface Analysis Inconsistency Notification:Disabled
Post Prompt Timeout: 0 secs
Cache Board Present: True
Cache Status: OK
Cache Ratio: 25% Read / 75% Write
Drive Write Cache: Disabled
Total Cache Size: 512 MB
Total Cache Memory Available: 464 MB
No-Battery Write Cache: Disabled
Cache Backup Power Source: Batteries
Battery/Capacitor Count: 1
Battery/Capacitor Status:OK
SATA NCQ Supported: True
Array: A
Interface Type: SATA
Unused Space: 0 MB
Status: OK
Array Type: Data
Logical Drive: 1
Size: 232.9 GB
Fault Tolerance: 1
Heads: 255
Sectors Per Track: 32
Cylinders: 59844
Strip Size: 128 KB
Full Stripe Size: 128 KB
Status: OK
Caching: Enabled
Unique Identifier:600508B10010543953584B34304C0031
Disk Name: /dev/cciss/c0d0
Mount Points: /boot 200 MB
OS Status: LOCKED
Logical Drive Label:A02701F3PAFGK0T9SXK40LB1E4
Mirror Group 0:
physicaldrive 1I:0:1 (port 1I:box0:bay 1, SATA, 250 GB, OK)
Mirror Group 1:
physicaldrive 1I:0:2 (port 1I:box0:bay 2, SATA, 250 GB, OK)
Drive Type: Data
physicaldrive 1I:0:1
Port: 1I
Box: 0
Bay: 1
Status: OK
Drive Type: Data Drive
Interface Type: SATA
Size: 250 GB
Firmware Revision: EMT01B6Q
Serial Number:S22SNXAG970453K
Model: ATA Samsung SSD 850
SATA NCQ Capable: True
SATA NCQ Enabled: True
Current Temperature (C): 35
Maximum Temperature (C): 70
PHY Count: 1
PHY Transfer Rate:1.5Gbps
physicaldrive 1I:0:2
Port: 1I
Box: 0
Bay: 2
Status: OK
Drive Type: Data Drive
Interface Type: SATA
Size: 250 GB
Firmware Revision: EMT01B6Q
Serial Number:S22SNXAG970835X
Model: ATA Samsung SSD 850
SATA NCQ Capable: True
SATA NCQ Enabled: True
Current Temperature (C): 36
Maximum Temperature (C): 70
PHY Count: 1
PHY Transfer Rate:1.5Gbps