missing raid array after reboot

Dear all ,

i ve configured raid 0 in redhat machine(VM ware), by following steps:

#mdadm -C /dev/md0 -l 0 -n 2 /dev/sdb1 /dev/sdc1 
#mkfs.ext3 /dev/md0 
#mdadm --detail --scan --config=mdadm.conf >/etc/mdadm.conf

then
mounted the/dev/md0 device and also added a entry in fstab.

how the isssue is when the system rebooted the raid array configuration is missing, there is no device as /dev/md0..
what's the solution for this??? any help !!!!

Did u checked whether your disks (sd [b|c] ) are available after the reboot...

yep... i couldnt find any disk array but the disks(sd [b|c] ) are available!!!