RHAS and RHES difference

Hello All,

Could someone tell me what's the difference between RedHat Advanced Server and RedHat Enterprise Server?

Which is better covered in support from Red Hat?

I've an existing RHEL with the development rpm's selected at install time.
If I've to setup the entire Development rpm's from the RH install media from RHAS, will they work with some minor tweaking? Does any one see a compatability problem with RHEL -> RHAS and RHAS -> RHEL?

Thanks in advance.
Dhansih

See Red Hat Enterprise Linux operating system