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To: pgerassi who wrote (231045)	4/22/2007 10:09:33 PM
From: Dan3	Read Replies (1) \| Respond to of 275872

Re: You can whittle the users down on the virtual servers by running the primary Oracle on a single physical server with a hot spare (only activated when the primary goes down)(typical three tier setup). That's how we do it. We use CA's XOSoft WanSyncHA to do automatic startup then failover for the hot spare. Great minds think alike. :-) Unfortunately, WanSync doesn't do failover for Linux hosted Oracle. We do run the middle tier boxes on Linux. Oracle seems to be disk and memory limited more often than CPU, and in cases where it isn't we can load additional instances on a box, so we usually need to add more disk and RAM (need another box) more often than CPU. I don't think we have "typical" applications, so we likely have atypical "best" configurations. I've got a grunch of dev and test boxes that need windows licenses. My first evaluation experiences with VMWare weren't very encouraging, so, since I have to pay for the software for each virtual instance anyway, and I'd just as soon be able to reboot a runaway box, I've been sticking with lots of little boxes (single populated socket 1U servers without redundant power supplies, for the most part). Given that virtual servers are probably easier to manage under such circumstances, I know I need to migrate those platforms to virtual servers. But where's the time? Are you at an FFRDC? Regards, Dan