On Wed, 4 Mar 1998, Niall Smart wrote:
> I think a good approach to transparent clustering is through distributed
> shared memory. However, the coherencey schemes used for high reliability
Or via a distributed lock manager, and shared disk storage. I
understand this is how current cluster development is going.
> of months from now though. One particular thing that could benefit
> easily from this are DNS servers, other servers like mail and news wouldn't
DNS? DNS already has excellent fault-tolerant capabilities.
> be so easy, because of the need for a reliable shared filesystem. Plus
> there is the problem of how to get clients of these servers to contact
> the redundant one in the event of a failure, I think someone has done
> something in this area using proxy arp...
This is the important bit. IP address assumption is critical. Some
clusters do it by assuming the MAC address to ensure an instant
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