技术技巧---Linux下查看RAID阵列卡信息

适用范围：采用LSI MegaRaid芯片的RAID卡，如浪潮、曙光等厂商的产品。
1、上传工具包：[MegaRAID]，安装rpm -ivh MegaCli-8.07.14-1.noarch.rpm
2、进入/opt/MegaRAID/MegaCli，执行./MegaCli64 -LDInfo -LALL -aAll

Adapter 0 -- Virtual Drive Information: 
Virtual Drive: 0 (Target Id: 0) 
Name                : 
RAID Level          : Primary-5, Secondary-0, RAID Level Qualifier-3 
Size                : 1.088 TB 
Sector Size         : 512 
Is VD emulated      : No 
Parity Size         : 278.875 GB   

State : Optimal
Strip Size : 128 KB

Number Of Drives    : 5   

Span Depth : 1
Default Cache Policy: WriteBack, ReadAhead, Direct, Write Cache OK if Bad BBU
Current Cache Policy: WriteBack, ReadAhead, Direct, Write Cache OK if Bad BBU
Default Access Policy: Read/Write
Current Access Policy: Read/Write
Disk Cache Policy : Enabled
Encryption Type : None
Is VD Cached: No