A B C D E F G H I J K L M N O P Q R S T U V W X Y Z << prev |  top | glossary index | bottom | next >> Definitions from Tiered Storage to Zoning Tiered Storage Data storage is arranged according to its intended use. For instance, data intended for regular use or restoration in the event of data loss or corruption is stored locally on more expensive, faster disks. Data required to be kept for regulatory purposes is archived to lower cost disks. This approach allows funds to be spent where necessary and cost-savings possible so that hardware is not wasted in its role. Virtualization This is the pooling of physical storage from multiple network devices, allowing it to appear as a single storage device, managed from a central console. It is commonly used in a SAN environment. Volume A volume is an area of storage on a hard disk. A volume is formatted by using a file system, such as file allocation table (FAT) or NTFS, and typically has a drive letter assigned to it (in Windows). A single hard disk can have multiple volumes, and volumes can also span multiple disks. Web Server A Server whose role is to access and publish information on the public Internet or private company Intranet via web pages, databases and other back-end systems. These have become popular vehicles for sharing information, and examples include e-commerce, web-based services (such as Online Backup) and security functions. Wide Area Network (WAN) A WAN is a Wide Area Network. A WAN is comprised of two or more local area networks (LAN’s) that are connected together through an intermediary network. For example, a LAN in London needs to connect to a LAN in Manchester. When these two are connected together, a WAN has been created. Zoning A method used to restrict server access to storage resources that are not allocated to that server. Zoning is similar to LUN masking, but is implemented in the switch and operates on the basis of port identification (often using port numbers) << prev |  top | glossary index | bottom | next >> A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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