Hey,
first, full disclosure: I work at Avokia. But we do have an availability solution that is cheaper than RAC (doesn't require a SAN) and combines the value props of both RAC and DataGuard.
We virtualize the data layer enabling many identical databases to be in production serving your users. And you can put these databases into geographically distant datacenters. So you get a live-live-live... set-up without the need for manual conflict resolution that others require.
Check it out at: www.avokia.com
Wojtek (I'm the product manager).
Hey, first, full disclosure: I work at Avokia. But we do have an availability solution that is cheaper than RAC (doesn't require a SAN) and combines the value props of both RAC and DataGuard. We virtualize the data layer enabling many identical databases to be in production serving your users. And you can put these databases into geographically distant datacenters. So you get a live-live-live... set-up without the need for manual conflict resolution that others require. Check it out at: www.avokia.com Wojtek (I'm the product manager).