It's x86 based, and like all good x86 machines, it has a mode where it will
boot on a single CPU and look like a microchannel PC. However, the voyagers
were designed to be large multi-CPU SMP machines. For SMP, it is completely
incompatible with the APIC/IO-APIC architecture which linux supports, so the
voyager patches provide a completely different SMP HAL, which had to be
written from scratch; it's not merely a modification of the existing one.
> BTW are those "current" machines, or is their production already
> stopped?
I believe the last data centre machines (the 32 CPU 51xx series) rolled off
NCR's production lines in 2001, so it is pretty much an obsolete machine now.
James
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