CHAPTER 2Oracle VM
You may wonder why this chapter is about a product that some consider a competitor to Oracle Clusterware and Oracle Real Application Clusters (Oracle RAC); however, Oracle VM has a role to play in maximum availability and is supported for some cluster configurations. When using single-instance databases, guest virtual machines (VMs) can be live-migrated (moved without shutdown) from one machine to another to allow for maintenance, and they can even be set up to relocate to another node when the current node fails. A failure scenario would of course result in a short outage, but imagine if VMs were actually running Oracle RAC databases—then the failure would simply mean one node down until it completes the move. You can even ...
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