Oracle Clustered 10g and MSA1000 Turning off

[Mohsen Basirat]

Dear users
i have problem with oracle 10g installation on windows 2003 R2 that is :
I installed 2 node oracle 10g Real application cluster on windows 2003 R2 node everything works good , i import database and using database from my application servers and i restarted server many time or even shutdown or startup servers again , nothing happend but when i turn of server and turn off MSA1000 too after server completely truned of and turn them on one or both my oracle node doesn't come up and even network cards not working on node and i can't see ASM LUN or other volumes on SAN from disk managment console (mmc), i dont know what happend to MSA or Oracle node after turning MSA off!
Please help me