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October 2013 Vol. 12 No. 8

Goodbye LUN technology, you served us well

In a virtual server world, the concept of LUN technology and the amount of attention LUNs require from storage administrators will soon be a thing of the past. The era of LUNs and volumes, as we have known them for decades in the data storage industry, is quietly coming to an end. And if you ask me, it's for all the right reasons, even if storage administrators may feel threatened by the change. In the world of physical servers, our standard practice of ganging up a set of disk drives into a RAID set to create a LUN has served us very well for decades. This LUN was created recognizing the type of application it was to serve and it was associated with all the appropriate storage services (replication, compression, snapshot and so on) the application warranted, based on its importance. That's all well and good. But then we started servicing several applications from the same LUN, and unless we overdid it or the applications were erratic, the LUN was able to serve multiple applications. If an application was important enough it got...

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