Articles
Dedupe Gets Smarter In New DXi7500 Release
February 9, 2009
Guest Column: Dedupe Gets Smarter In New DXi7500 Release
By Jerome M Wendt and Howard Haile DCIG, LLC
While storage system vendors initially promoted the importance of deduplication to reduce disk capacities, more recent product releases show that their understanding of the value of deduplication is evolving to help address a broader set of data protection concerns that face IT departments in distributed environments. Yesterday's launch of version 1.1 of the Quantum DXi7500 provides a great example of this.
In this 1.1 release of the DXi7500, 1 TB SATA disk drives are now standard, increasing the DXi7500's capacity by 22% on a per shelf basis. However 1 TB drives also increase the risk of data loss should not one but two drives fail before the rebuild of a first failed drive completes. Quantum appropriately incorporates RAID 6 technology into this release of the DXi7500 to provide dual parity and protection against data loss in the event a second disk drive fails during a rebuild. Each shelf has 16 drives with two RAID 6 sets (6+2 and 5+2) plus a global hot spare that is available for use by either of the RAID 6 sets on that shelf.
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