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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: Lhn5 who wrote (21140)	3/17/1999 8:40:00 PM
From: J Fieb	Read Replies (1) of 29386

The HDS blurb made me go back and read Mr. E. Lees article..... performancecomputing.com HDS doesn't want just a SAN. More like this........... "VI mappings Fibre Channel turns out to be particularly well-suited for VI, far better than SCSI or Gigabit Ethernet. The idea behind VI is to have application-to-application virtual channels that provide low-latency, high-bandwidth communications. One objective is to synchronize distributed processing so that processing power can scale smoothly. Another is to reduce the communications overhead on host processors so they can run their applications faster. Virtual Channels are set up by host processors, then left to the communication system to administer. (It's called "management by exception" in business.) The communications system should provide source-socket to destination-socket communication on cue, without calling on the operating system or host processor. VI also specifies classes of service including unconfirmed and confirmed delivery. If we've adequately communicated how Fibre Channel works, it should be clear that VI's requirements and Fibre Channel's capabilities fit beautifully. (Fibre Channel's standard for VI mapping is scheduled for release in mid-1999.) Where does this lead? VI may be a step toward CANs--compute area networks. These networks will enable us to scale processing power the way SANs enable us to scale storage. CANs will require low-latency communications of many relatively short messages, while SANs require wide-bandwidth communications of much larger blocks of data. Fibre Channel is the one communication technology that supports both effectively. In fact, a single fabric can support both requirements concurrently. " Hopefully this will help sell the FC technology.. Go HDS.

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