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On Wed, 27 Jun 2007 07:39:30 +0000, herta wrote:
> On Jun 27, 5:30 am, DA Morgan <damor..._at_psoug.org> wrote:
>> Mladen Gogala wrote: >> > On Tue, 26 Jun 2007 14:49:33 +0000, herta wrote: >> >> >> That's not an explanation. I understand why you would want a DR site. I >> understand why you might want a RAC cluster or Data Guard at a DR site.
>> >> > The manual says you can, but it doesn't explain why would you do >> > something like that. >> >> Which is the point of my questions. The fact that I can hit my head on >> a rock doesn't make me want to do it: At least not today.
Herta, the problem is that with a physical standby, machine(s) doing recovery are inactive, standing by. Thus the name. Machines are expensive. You have to pay licence fees, electricity, allocate space (in my case space is on the Times Square, New York City, which is not known for being cheap) and spare parts. Likelihood is that you're using some kind of SAN and RAID 1+0, so you must have a spare disk or two. My question is, simply put, why would you want to have 2 machines doing nothing together (RAC), instead of having one machine and then adding a spare, should the need arise. The other machine can, in the meantime, be used for development, file server or as a doom3/battlezone server.
-- http://www.mladen-gogala.comReceived on Wed Jun 27 2007 - 11:19:41 CDT