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Access "IBM's Shark stays afloat"

Published: 15 Oct 2012

Despite its threatening nickname, IBM's Enterprise Storage System, or Shark, is rarely regarded as a serious threat to its competition from Hitachi and EMC. But recent enhancements should keep Shark afloat for a while longer in the treacherous waters of high-end storage. The new Shark models consist of the 800 and 800 Turbo, and boast significant improvements in response time - 40%, IBM claims - thanks to new 2Gb/s FC connectivity, and two times the capacity. In and of themselves, these performance improvements are "nothing to write home about," says Arun Taneja, senior analyst at the Enterprise Storage Group - "this is a midlife kicker announcement from IBM." But beyond performance, IBM has also improved Shark's disaster recovery features, says Dianne McAdam, analyst with Illuminata. For example, PPRC throughput has been improved by 2.5 times, and the time it takes to create a copy of your data using FlashCopy has been halved. Furthermore, Shark also now supports RAID 10 - mirroring and striping - whereas before it only supported RAID 5 (striping with ... Access >>>

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