"There is a large array of virtual storage options available to IT administrators, and choosing the right option comes down to functionality vs. costs," suggests Stuart Burns
"Many admins rely on shared storage, a key component of most production-grade virtual environments.
Shared storage ensures that the elements that make virtualization a great tool -- such as storage migration, high availability and redundancy -- remain available. Shared storage comes in several formats, the two main varieties being classic storage area network (SAN) and hyper-converged storage..."
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