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A storage area network ( SAN) or storage network is a computer network which provides access to consolidated, block-level data storage. SANs are primarily used to access data storage devices, such as disk arrays and tape libraries from servers so that the devices appear to the operating system as direct-attached storage.
A virtual storage area network (virtual SAN, VSAN or vSAN) is a logical representation of a physical storage area network (SAN). A VSAN abstracts the storage-related operations from the physical storage layer, and provides shared storage access to the applications and virtual machines by combining the servers' local storage over a network into a single or multiple storage pools.
Network-attached storage ( NAS) is a file-level (as opposed to block-level storage) computer data storage server connected to a computer network providing data access to a heterogeneous group of clients. The term "NAS" can refer to both the technology and systems involved, or a specialized device built for such functionality (as unlike ...
Fibre Channel ( FC) is a high-speed data transfer protocol providing in-order, lossless [1] delivery of raw block data. [2] Fibre Channel is primarily used to connect computer data storage to servers [3] [4] in storage area networks (SAN) in commercial data centers . Fibre Channel networks form a switched fabric because the switches in a ...
IOPS. Input/output operations per second ( IOPS, pronounced eye-ops) is an input/output performance measurement used to characterize computer storage devices like hard disk drives (HDD), solid state drives (SSD), and storage area networks (SAN). Like benchmarks, IOPS numbers published by storage device manufacturers do not directly relate to ...
Compellent Technologies, Inc., was an American manufacturer of enterprise computer data storage systems that provided block-level storage resources to small and medium sized IT infrastructures. The company was founded in 2002 and headquartered in Eden Prairie, Minnesota. Compellent's flagship product, Storage Center, is a storage area network ...
Concepts[edit] In essence, iSCSI allows two hosts to negotiate and then exchange SCSI commands using Internet Protocol (IP) networks. By doing this, iSCSI takes a popular high-performance local storage bus and emulates it over a wide range of networks, creating a storage area network (SAN). Unlike some SAN protocols, iSCSI requires no dedicated ...
A clustered file system ( CFS) is a file system which is shared by being simultaneously mounted on multiple servers. There are several approaches to clustering, most of which do not employ a clustered file system (only direct attached storage for each node). Clustered file systems can provide features like location-independent addressing and ...
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