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Vol. 7 No. 2 April 2008

The benefits of clustered storage

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 ...

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Features in this issue

  • Is iSCSI good enough?

    by  Deni Connor

    Organizations of all sizes have adopted iSCSI because it's easy to install, inexpensive, behaves just like Ethernet and doesn't require specialized skill sets like Fibre Channel does. But do analyst claims that iSCSI performance falls short of that for Fiber Channel hold up?

  • Survey: Fibre Channel rules planned purchases

  • Automate application recovery

    by  Eric Burgener

    Today's application continuity computing (ACC) products are best suited for small- and medium-sized businesses, and are focused exclusively on Exchange, which most companies now consider a business-critical application. But the concentration on Exchange will likely change over the next few years, as several ACC vendors plan support for SQL Server and SharePoint in the future.

Columns in this issue

  • Best Practices: High hopes for thin provisioning

    Thin provisioning is a promising way to address allocation and performance. One of the biggest challenges when using the technology is knowing where your data lives, and whether it can be tracked or recovered if there's a catastrophic component failure.

  • Storage Bin 2.0: Winds of change push storage into a new era

    The transactional computing era is over. The Internet computing era is dragging data into the "cloud," and this new era will rain more files--and bigger files--down on you than you can ever imagine.

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