Re: Hot pluggable CPUs ( was Linux 2.5 / 2.6 TODO (preliminary) )

David L. Nicol (david@kasey.umkc.edu)
Mon, 05 Jun 2000 02:12:36 -0500

Bruce Guenter wrote:
>
> On Sat, Jun 03, 2000 at 02:29:34PM +0100, James Sutherland wrote:
> > This is, IMHO, quite an attractive idea: a fully hot-swappable system,
> > where any failed component can be replaced without any downtime.
>
> And how do you plan on swapping out the motherboard that everything
> connects into?

Migrate all user processes onto a different box,
shut down,
repair or replace,
bring up,
rejoin cluster.

Given migratable tcp-ip connections
http://tcp-impl.grc.nasa.gov/tcp-impl/list/archive/0696.html
this could be done transparently.

Without, another host could set up a bochs/vmware like
environment to contain everything the computer that is
in need of repair is running, and it would be activated at some
"instant" the same time the NIC on the host host starts
listening on the broken host's IP address and routing those into the VM.

-- 
                          David Nicol 816.235.1187 nicold@umkc.edu
                                            Visualize creamed corn


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