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Published: 01 Nov 2012

Clustered storage promises better performance, scalability and reliability, but it's not designed to fit the needs of every storage environment. Clustered storage combines multiple arrays or controllers to increase their performance, capacity or reliability. In many cases, it's a cost-effective way to meet today's storage needs. But clustering isn't right for everyone. Before choosing whether or how to adopt clustered storage, storage managers should understand their business and data access requirements. This includes asking themselves the following questions: What requires the best performance: random or sequential I/O? Which is more important: reliability or speed? What storage protocols and topologies must be supported? How quickly and to what point in time is recovery required after a disaster or hardware failure? Clustering has been hitting the news headlines in the last year. For example, EMC Corp. now supports cluster storage for archiving and backup; Hewlett-Packard (HP) Co. bought PolyServe and its clustered file server; IBM Corp. recently ... Access >>>

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