Exam for Computer English of Science and Technology
Common virtualization layer:Storage must be organized as a single logical pool of resources a vailable to users.
Data redundancy and availability: Multiple copies of data should exist across nodes in the grid,creating redundant data access and availability in case of a component failure.
Common management: A single level of management across all nodes
Simplified platform/management architecture:Because common management is so important,the tasks involved in administration should be organized in modular fashion,allowing the autodisc overy of new nodes in the grid and automating volume and file management.
Therr Basic Benefits
Applying grid topology to a storage network provides several benefirs, including the following:
Reliability.A well-designed grid network is extremely resilient. Rather than providing just two paths between any two nodes,the grid offers multiple paths between each storage node.This makes it easy to service and replace components in case of failure, with minimal impact on system availability or downtime
Performance.The same factors that lead to raliability also can improve perfprmance.Not requi ring a centralized switch wish many ports eliminates a potential performance bottleneck,and applying load-balancing techniques to the multiple paths available offers consistent performance for the entire network.
Scalability.It's easy to expand a grid network using inexpensive switches with low port counts to accommodate additional servers for increased performance,bandwidth and caoacity.In essence, grid storage is a way to scale out rather than up, using relatively inexpensive storage building blocks.
The 21 century is an ages if the information economy, being the computer network technique of representative thchniquse this ages,will be at very fast speed develop soon in continnuously creatively,and will go deep into the people'swork, life and study. Therefore,contorl this technique and then seem to be more to deliver the importance. Now I mainly introduce the new technique of afew networks in actuality live of application.
keywords
Internet Digital Certificates Digital Wallets Grid storage