Re: yipeee!

Anton Versteeg wrote:

> Would be a lot easier to migrate to DB2 AIX than to O.
> Also DB2 has a much better parallel (shared nothing) architecture.
>

Of course it does. Oracle doesn't use shared nothing ... but then neither does IBM on its mainframes. Shared nothing may be fast ... but it is a maintenance nightmare. It requires partitioning data into separate physical storage. It requires some recoding of an application when nodes are added or removed. And worst of all ... the cluster must be brought down and restarted ... whenever a node is added or removed.

There is a reason IBM doesn't use shared nothing on their mainframes. They don't have too. And there is a reason why they are working like crazy to overcome shared nothing's weaknesses on their other platforms ... like AIX.

Shared nothing only looks good when compared with Microsoft's Federated architecture which has all of shared nothing's weaknesses and more.

-- 
Daniel Morgan
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