OpenVMS is an OS writen by DEC for its Alpha processors.  By an for the
most part it is a dead OS.

OS/390 also called MVS is a mainframe OS that runs on IBM System/390

I am not certain what you mean by tier1-3

Keith Davey


On Thu, 21 Dec 2000, Jacques Butcher wrote:

> I Just want to get some clarity on the above-mentioned. What is OpenVMS
> exactly and what does it have to do with Dec Alpha's.  I've got a customer
> that has this configuration (OpenVS running on Dec Alphas).  Is this a
> tier1, tier2, or a tier3 configuration from TSM's point of view?
> What is OS/390?  From what  understand it is an operating system running on
> a Mainframe and that this is a tier3 architecture from TSM's point of view.
>
> Any feedback will be greatly appreciated.
>
> Jacques Butcher.
>