Just found a plugin to monitor the status of software raid devices. Other raid devices like megaide, megaraid, etc. are supported, too. Thanks a lot to Steve Shipway for providing this great tool.



Supported devices:
Version 1.1: IPS; Solaris, AIX, Linux software RAID; megaide
Version 2.0: Added megaraid, mpt (serveraid), aacli (serveraid)

Download here or from the guys at NagiosExchange.