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Technology Stocks : The New QLogic (ANCR)

QLGC 16.07

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Aug 24 5:00 PM EST

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To: GuinnessGuy who wrote (23550)	8/1/1999 4:41:00 PM
From: George Dawson	Read Replies (2) of 29386

Craig, This is the commercial version of the NCSA cluster I referenced in my initial response. It is a Clariion whitepaper: clariion.com The consortium on this white paper appear to be supporting VIA in a big way and a specific proprietary switch. VIA can also be supported by FC gear as noted in this Edwin Lee reference: performancecomputing.com See the paragraph "VI mappings" near the end. At this point it seems that VIA adapters and routers with their lower cost, lower latency, and higher bandwidth have the competitive advantage. Even though FC port costs are probably dropping fast the I/O characteristcs of the VIA networks are better for specific types of processor clustering (FC may still be better for large files). The Clariion whitepaper makes me think that it is basically a clustered form of NAS. One of the advantages of NAS is that adapter costs are minimized. Either way - I think FC switches will still be needed to cluster big disk arrays. George

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