Windows Server 2012 Storage Space subsystem now virtualizes storage by abstracting multiple physical disks into a logical construct with specified capacity. The process is to group selected physical disks into a container, the so-called storage pool, such that the total capacity collectively presented by those associated physical disks can appear and become manageable as a single and seemingly continuous space. Subsequently a storage administrator creates a virtual disk based on a storage pool, configure a storage layout which is essentially a RAID level, and expose the storage of the virtual disk as a drive letter or a mapped folder in Windows Explorer.
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