Q: What is the criteria for system availability?
System availability is particularly important, especially in terms of disaster recovery and fault tolerance. This is in terms of: How is this solution going to be put together? Is it going to have some degree of redundancy, some degree of resilience? Are we going to have just enough blades to keep going, are we going to have just enough capacity for the machines we have, or do we have a business continuing ESX farm or virtual farm where we can sail over to if I need to take a blade or enclosure down? How does that impact the service I provide to the clients?
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About the author
Martin MacLeod is an IT consultant based in London with several years' experience deploying and supporting blade servers in volume. He also blogs at bladewatch.com, where he tracks news on blade servers, grids and virtualization. Listen to the rest of Martin's answers on blade server virtualization by downloading our blade server virtualization podcast.