Network Attached Storage
نویسنده
چکیده
of scaling aggregate bandwidth by spreading partial functions over a number of disk processors. Object-level storage abstraction, introduced by NASD, is recognized to be the third alternative in addition to block-level storage abstraction typically seen in SAN storage environments and file-level storage abstraction in NAS storage environments. Content-Addressable Storage is another example which offers object-level storage accesses and is now widely deployed in enterprise systems. The idea of NASD has been standardized as ANSI T10 SCSI OSD, which specifies an extension of the SCSI protocol for clients and devices to exchange objects and their related information. Thus, OSD is sometimes seen as a promising infrastructure of intelligent storage devices in which more intelligence will be incorporated.
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