[AG-TECH]Question About Node Backup/Fault Tolerance

John Hodrien johnh at comp.leeds.ac.uk
Mon Oct 31 09:57:14 CST 2005

On Mon, 31 Oct 2005, John Langkals wrote:

> How do you support fault tolerance within your Access Grid node?  If you
> would experience catastrophic failure of your node hardware, what kind of
> backup have you designed into your production nodes to maintain service?

Admittedly we don't run it as a service, but...

We're in the process of replacing our old AG1 hardware with a shiny single
machine AG2 setup (and buying two machines).

A spare echo-cancelling microphone so if the Gentner gave up we could switch
over to that as a passable short term solution.

So if the PC breaks we should be able to provide normal service, if the audio
hardware breaks we should be able to provide degraded service.  If a projector
dies (as one has) you run in a degraded state.

If the PC catches fire it'll take the spare out...


"I happen to feel that the degree of a person's intelligence is directly
  reflected by the number of conflicting attitudes she can bring to bear on the
  same topic."                                        -- Lisa Alther

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