针对Dell PE1950（使用megaraid_sas），Dell建议使用LSI提供的MegaCLI工具监控状态。

下载地址：
http://www.lsi.com/support/downloads/megaraid/miscellaneous/linux/Linux_MegaCLI_1.01.24.zip

顺便在老外blog上找来一个现成的监控脚本：
http://www.binf.ku.dk/~hanne/blog/?postid=11

----------------------------| check_megaraid.sh |-----------------------------
#!/bin/sh

CONT="a0 a1"
STATUS=0

echo -n "Checking RAID status on "
hostname
for a in $CONT
do
   NAME=`/opt/MegaCli -AdpAllInfo -$a |grep "Product Name" | cut -d: -f2`
   echo "Controller $a: $NAME"
   noonline=`/opt/MegaCli PDList -$a | grep Online | wc -l`
   echo "No of Physical disks online : $noonline"
   DEGRADED=`/opt/MegaCli -AdpAllInfo -a0  |grep "Degrade"`
   echo $DEGRADED
   NUM_DEGRADED=`echo $DEGRADED |cut -d" " -f3`
   [ "$NUM_DEGRADED" -ne 0 ] && STATUS=1
   FAILED=`/opt/MegaCli -AdpAllInfo -a0  |grep "Failed Disks"`
   echo $FAILED
   NUM_FAILED=`echo $FAILED |cut -d" " -f4`
   [ "$NUM_FAILED" -ne 0 ] && STATUS=1
done
exit $STATUS
----------------------------| check_megaraid.sh |-----------------------------

rpm安装MegaCli，然后跑一下脚本：

# ./check_megaraid.sh
Checking RAID status on server_xxx
Controller a0:  PERC 5/i Integrated
No of Physical disks online : 2
Degraded : 0
Failed Disks : 0
Controller a1:
No of Physical disks online : 0
Degraded : 0
Failed Disks : 0    


至于HP DL360的RAID监控：

1. 下载并安装 mpt-status RPM包：
   rpm -ihv http://drugphish.ch/~ratz/mpt-status/RPMS/1.2.0_RC7/mpt-status-1.2.0_RC7-3.i386.rpm

2. 建立字符设备
   mknod /dev/mptctl c 10 220

3. 引入mptctl内核模块
   modprobe mptctl

4. 查看RAID状态
   # mpt-status -i 1
ioc0 vol_id 1 type IM, 2 phy, 67 GB, state OPTIMAL, flags ENABLED
ioc0 phy 1 scsi_id 9 HP       DF072A9844       HPD0, 68 GB, state ONLINE, flags NONE
ioc0 phy 0 scsi_id 2 HP       DF072A9844       HPD0, 68 GB, state ONLINE, flags NONE