virtual SAN appliance (VSA)
A virtual SAN appliance, also called a virtual storage appliance (VSA), is a software bundle that allows a storage manager to turn the unused storage capacity in his network’s virtual servers into a storage area network (SAN ). The SAN provides a pool of shared storage that can be accessed by the virtual server s as needed.
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A virtual SAN appliance is most often downloaded as a software program that runs on a virtual machine (VM ), but some storage hardware vendors are beginning to incorporate SAN appliances into their firmware. Depending on the vendor, a virtual SAN appliance might also be called a virtual storage network appliance, a virtual storage optimization appliance or simply a virtual storage appliance.
This was last updated in January 2010
partition Partitioning a hard disk drive is the first step in preparing it for data storage. A disk partition is a carved out logical space. See complete definition RAID (redundant array of independent disks) RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks to. See complete definition unified storage (multiprotocol storage) Unified storage — sometimes called network unified storage or multiprotocol storage — is a storage system that runs and manages. See complete definition