I would also add, that in the S/390 hardware environment, independant of the software that is running, there are many fault tolerant features built-in. For example CPU or memory can physically fail, be swapped out with redundant memory or CPU, without the application ever noticing. *THAT* in my opinion is what makes a mainframe a mainframe regardless of which operating system is running on it, although software stability does play a very important part as well.
Linux on other platforms will still fail if a CPU or memory chip fails, causing an outage. There are many other features of the s/390(now z/Series) hardware that the other platforms still have not gotten yet, but are getting closer, like dynamic partitioning, shared memory and CPU amongst virtual servers, and probably more notible, is the concurrent hardware maintenance for almost 90% of all hardware changes. There is alot more marketing puke that others can add I'm sure Dave __________________________________________________________ Dave Jousma Lead Systems Administrator - Information Technology Spartan Stores, Inc. PO Box 8700 Grand Rapids, MI 49518 (616) 878-2883 Email: [EMAIL PROTECTED]
