Steve Johnson, who works in storage architectural strategic planning with LSI's Corporate CTO office, leads us through the use of a new 12Gb/s SAS 40- port expander in development. The use of SAS expanders will help enable flexible and shareable storage volumes within a scaleable SAN-like architecture.
The use of switches to connect all storage in a DAS environment allows for more complex RAID schemes to significantly reduce RAID rebuild times. Utilizing the 12Gb/s MegaRAID controllers in tandem with a new LSI technology, dubbed 'D-RAID', will provide a massive reduction in RAID rebuild times, from a week to within roughly 20 min per volume.
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