There are basically three different approaches to virtualization of a storage environment. These differ in is located at what level virtualization instance. There are, according to current knowledge of the following approaches:
Each version has advantages and disadvantages. The design of virtual storage management based on a screening each of these levels in the company. Only after a detailed analysis and a clear vision can optimize the memory utilization and simplify administration.
- Virtualization at the server level (host based)
- SAN-level virtualization (Appliance-based)
- Virtualization on the storage level (array based)
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