Re: [plug] Xaprb: 50 things to know before migrating Oracle to MySQL

[thad]

On 3/19/09, Winelfred G. Pasamba <winelfredpasa...@gmail.com> wrote:
> one of the very nice things about Oracle is RAC.
>  are there other databases that have similar functionality?
>
>  from a simplistic view one wonders if RAC is using the same ideas used
>  for cache coherency on SMP systems with separate caches on each cpu.
>
Good if you can find open source that scale like RAC. I work for a
company that could afford to spend $2million for 2  P6-P595 on DB2 +
HACMP for high availability but having serious thought for spending
several more millions for Oracle RAC that will fit our requirement. Of
course we UNIX SAs and some Oracle DBAs want RAC. Its not elegant  for
the high availability cluster on the OS level to handle a database
fail over scenario, RAC can handle it better. For automatic metering
service and smart grid, Oracle RAC + NMS is the way to go.
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