How does RAC One Node compare with virtualization solutions like VMware?
RAC One Node offers greater benefits and performance than VMware in the following ways: – Server Consolidation: VMware offers physical server consolidation but imposes a 10%+ processing overhead to enable this consolidation and have the hypervisor control access to the systems resources. RAC One Node enables both physical server consolidation as well as database consolidation without the additional overhead of a hypervisor-based solution like VMware. – High Availability: VMware offers the ability to fail over a failed virtual machine – everything running in that vm must be restarted and connections re-established in the event of a virtual machine failure. VMware cannot detect a failed process within the vm – just a failed virtual machine. RAC One Node offers a finer-grained, more intelligent and less disruptive high availability model. RAC One Node can monitor the health of the database within a physical or virtual server. If it fails, RAC One Node will either restart it or migrate the
Related Questions
- How does RAC One Node compare with traditional cold fail over solutions like HP Serviceguard, IBM HACMP, Sun Cluster and Symantec, and Veritas Cluster Server?
- What are the advantages of Hyper-V in contrast to other virtualization solutions, for example VMWare ESX?
- How does RAC One Node compare with database DR products like DataGuard or Golden Gate?
