设备名称：
[root@DB232 shell]# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 02 Id: 00 Lun: 00
Vendor: DELL Model: PERC 5/i Rev: 1.03
Type: Direct-Access ANSI SCSI revision: 05
[root@DB232 shell]#
运行出错：
[root@DB232 opt]# smartctl -i /dev/sda
smartctl 5.42 2011-10-20 r3458 [x86_64-linux-2.6.18-238.el5] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net
Smartctl open device: /dev/sda failed: DELL or MegaRaid controller, please try adding ‘-d megaraid,N’
[root@DB232 opt]#
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
下载：http://ftp.cs.stanford.edu/pub/rpms/centos/5/x86_64/
http://ftp.cs.stanford.edu/pub/rpms/centos/5/x86_64/MegaCli-8.00.46-1.i386.rpm
[root@DB232 opt]# wget http://ftp.cs.stanford.edu/pub/rpms/centos/5/x86_64/MegaCli-8.00.46-1.i386.rpm
安装出错：
[root@DB232 opt]# rpm -ivh MegaCli-8.00.46-1.i386.rpm
error: Failed dependencies:
Lib_Utils is needed by MegaCli-8.00.46-1.i386
解决：
[root@DB232 opt]# wget http://ftp.cs.stanford.edu/pub/rpms/centos/5/x86_64/Lib_Utils-1.00-08.noarch.rpm
[root@DB232 opt]# rpm -ivh Lib_Utils-1.00-08.noarch.rpm
Preparing… ########################################### [100%]
Installing….
1:Lib_Utils ########################################### [100%]
[root@DB232 opt]# rpm -ivh MegaCli-8.00.46-1.i386.rpm
Preparing… ########################################### [100%]
1:MegaCli ########################################### [100%]
[root@DB232 opt]#
安装位置：
[root@DB232 MegaCli]# ls -al /opt/MegaRAID/MegaCli/MegaCli64
-rwxr-xr-x 1 root root 2247688 2011-02-03 /opt/MegaRAID/MegaCli/MegaCli64
[root@DB232 MegaCli]#
查看RAID级别：
[root@DB232 MegaCli]# /opt/MegaRAID/MegaCli/MegaCli64 -LDInfo -Lall -aALL
Adapter 0 — Virtual Drive Information:
Virtual Drive: 0 (Target Id: 0)
Name :database
RAID Level : Primary-1, Secondary-3, RAID Level Qualifier-0
Size : 203.25 GB
State : Optimal
Strip Size : 64 KB
Number Of Drives per span:2
Span Depth : 3
Default Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteThrough, ReadAheadNone, Direct, No Write Cache if Bad BBU
Access Policy : Read/Write
Disk Cache Policy : Disk’s Default
Encryption Type : None
Exit Code: 0x00
[root@DB232 MegaCli]#
实用方法：
命令使用：
#/opt/MegaCli -LDInfo -Lall -aALL 查raid级别
#/opt/MegaCli -AdpAllInfo -aALL 查raid卡信息
#/opt/MegaCli -PDList -aALL 查看硬盘信息
#/opt/MegaCli -AdpBbuCmd -aAll 查看电池信息
#/opt/MegaCli -FwTermLog -Dsply -aALL 查看raid卡日志
#/opt/MegaCli -adpCount 【显示适配器个数】
#/opt/MegaCli -AdpGetTime –aALL 【显示适配器时间】
#/opt/MegaCli -AdpAllInfo -aAll 【显示所有适配器信息】
#/opt/MegaCli -LDInfo -LALL -aAll 【显示所有逻辑磁盘组信息】
#/opt/MegaCli -PDList -aAll 【显示所有的物理信息】
#/opt/MegaCli -AdpBbuCmd -GetBbuStatus -aALL |grep ‘Charger Status’ 【查看充电状态】
#/opt/MegaCli -AdpBbuCmd -GetBbuStatus -aALL【显示BBU状态信息】
#/opt/MegaCli -AdpBbuCmd -GetBbuCapacityInfo -aALL【显示BBU容量信息】
#/opt/MegaCli -AdpBbuCmd -GetBbuDesignInfo -aALL 【显示BBU设计参数】
#/opt/MegaCli -AdpBbuCmd -GetBbuProperties -aALL 【显示当前BBU属性】
#/opt/MegaCli -cfgdsply -aALL 【显示Raid卡型号，Raid设置，Disk相关信息】
[root@DB232 MegaCli]# /opt/MegaRAID/MegaCli/MegaCli64 -cfgdsply -aALL
=============================================================
Adapter: 0
Product Name: PERC 5/i Integrated
Memory: 256MB
BBU: Present
Serial No: 12345
==============================================================
[root@DB232 MegaCli]# ls -al /dev/megaraid_sas_ioctl_node
cr——– 1 root root 253, 0 04-15 13:23 /dev/megaraid_sas_ioctl_node
[root@DB232 MegaCli]#
下面使用smartctl透过Raid卡获取磁盘更详细的信息：
# smartctl manual 摘录..
Under Linux , to look at SCSI/SAS disks behind LSI MegaRAID controllers, use syntax such as:
smartctl -a -d megaraid,2 /dev/sda
smartctl -a -d megaraid,0 /dev/sdb
where in the argument megaraid,N, the integer N is the physical disk
number within the MegaRAID controller. This interface will
also work for Dell PERC controllers. The following /dev/XXX entry must
exist: # 经测试只要存在即可，对应关系搞错确也仍可正常显示
For PERC2/3/4 controllers: /dev/megadev0
For PERC5/6 controllers: /dev/megaraid_sas_ioctl_node
[root@DB232 MegaCli]# smartctl -a -d megaraid,0 /dev/sda1
-------------------------------------------------------------------------------------------------------------------------------------------------------------
c233 ~ # smartctl -a -d megaraid,0 /dev/sda //在天津233执行的结果
smartctl 5.42 2011-10-20 r3458 [x86_64-linux-2.6.36-gentoo-r8] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net
Vendor: SEAGATE
Product: ST3146755SS
Revision: T106
User Capacity: 146,815,733,760 bytes [146 GB]
Logical block size: 512 bytes
Logical Unit id: 0x5000c50001fa3487
Serial number: 3LN0DAQZ
Device type: disk
Transport protocol: SAS
Local Time is: Tue Jul 7 14:08:10 2015 CST
Device supports SMART and is Enabled
Temperature Warning Disabled or Not Supported
SMART Health Status: OK
Current Drive Temperature: 39 C
Drive Trip Temperature: 68 C
Elements in grown defect list: 0
Vendor (Seagate) cache information
Blocks sent to initiator = 2033818666
Blocks received from initiator = 1189632289
Blocks read from cache and sent to initiator = 224505734
Number of read and write commands whose size <= segment size = 254557295
Number of read and write commands whose size > segment size = 12531253
Vendor (Seagate/Hitachi) factory information
number of hours powered up = 66374.83
number of minutes until next internal SMART test = 17
Error counter log:
Errors Corrected by Total Correction Gigabytes Total
ECC rereads/ errors algorithm processed uncorrected
fast | delayed rewrites corrected invocations [10^9 bytes] errors
read: 160704420 4 0 160704424 160704424 1139.656 0
write: 0 0 0 0 0 5032.699 0
verify: 449944729 0 0 449944729 449944729 25972.300 0
Non-medium error count: 39
SMART Self-test log
Num Test Status segment LifeTime LBA_first_err [SK ASC ASQ]
Description number (hours)
# 1 Background long Aborted (by user command) - 168 - [- - -]
# 2 Background long Aborted (by user command) - 159 - [- - -]
# 3 Background long Completed - 1 - [- - -]
# 4 Background short Completed - 0 - [- - -]
Long (extended) Self Test duration: 1941 seconds [32.4 minutes]