Inside System Storage -- by Tony Pearson

Tony Pearson Tony Pearson is a Master Inventor and Senior IT Specialist for the IBM System Storage product line at the IBM Executive Briefing Center in Tucson Arizona, and featured contributor to IBM's developerWorks. In 2011, Tony celebrated his 25th year anniversary with IBM Storage on the same day as the IBM's Centennial. He is author of the Inside System Storage series of books. This blog is for the open exchange of ideas relating to storage and storage networking hardware, software and services. You can also follow him on Twitter @az990tony.
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1 localhost commented Trackback

Aren't you mixing metrics here? <div>&nbsp;</div> Miles per Gallon measures an effeciency ratio (amount of work done with a fixed amount of energy), not a speed ratio (distance traveled in a unit of time). <div>&nbsp;</div> Given that IOPs and MB/s are the unit of "work" a storage array does, wouldn't the MPG equivalent for storage be more like IOPs per Watt or MB/s per Watt? Or maybe just simply Megabytes Stored per Watt (a typical "green" measurement)? <div>&nbsp;</div> You appear to be intentionally avoiding the comparison of I/Os per Second and Megabytes per Second to Miles Per Hour? <div>&nbsp;</div> May I ask why?

2 localhost commented Trackback

BarryB,This is a great question, and decided my response was lengthy enough to justify its own post, which you can find here:<div>&nbsp;</div> http://www-03.ibm.com/developerworks/blogs/page/InsideSystemStorage?entry=why_not_miles_per_hour

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