The odds of finding a hard disk drive in your next storage array grows slimmer by the day as the cost of solid state disks continues to drop. The price/performance curve for SSDs has improved so much relative to spinning disk, in fact, that decision makers in #IBM 's storage division see a day when data goes straight from flash to tape as it cools, or what they term "FLAPE." "The 15K RPM drives are going away," Gary Albert, business line executive for IBM Storage, tells IT Jungle. "There's going to be one more generation [of 15K RPM drives], but we're not going to qualify it because the cost differential between buying that and buying flash is minimal." IBM i shops that use external storage will soon have more SSD options to choose from, Albert says. "Why would anybody buy a spinning disk that has moving parts and is destined to fail, when you can buy something that has no moving parts and is proven to be more reliable, and uses less power?" he asks rhetorically. Fast 15K RPM drives have been the norm for IBM i shops that need to power transactional applications. These HDDs can be found inside Power Systems servers as DASD and in an array of external storage products from IBM and the one other vendor authorized to sell primary storage products to the IBM i installed base, EMC, which is being bought by Dell.
http://www.itjungle.com/tfh/tfh110716-story03.html
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