The myth of virtual machine consolidation ratios
Many people think the key to the virtual data centre is about getting as many virtual machines (VMs) on a physical server as possible. It is still the case, however, that prohibitive memory costs are a roadblock to high consolidation ratios, and virtualisation availability tools still lag behind business need. They have not yet cancelled out the “eggs-in-one-basket” scenario that virtualisation endemically brings with it.
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