Red Hat

Dear Sir,
I have one HP Proliant DL-380 G5 Server, i tried to install Redhat Enterprise Verison 4, when i am trying to install the linux operating system it is coming one error message your hard disk not found, we are using Serial Scsi harddisk 146 GB, array controller is p400.
i would like to request you that please give me a solution, how can i install the RHEL V4 in this server
Your Frequent Reply is highly appricable

You need Red Hat Enterprise Linux 4 UPDATE 6. I ran into the same issue a while back. Once you have the new media, it will have the appropriate drivers.