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Technology Stocks : Intel Corporation (INTC)

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To: Steve Porter who wrote (63398)	8/25/1998 11:00:00 PM
From: rudedog	Read Replies (1) of 186894

Steve - I have done a fair amount of work with SCSI, especially in large systems. With a sufficiently fast host, using non-disconnect transfers of large blocks, and target devices with sufficient buffering to avoid having the target disconnect, one can achieve better than 90% of the theoretical pipe bandwidth. I have done sustained transfers at close to 19 MBps on FW SCSI (95% utilization), although this requires a little tinkering to get it tuned and a fair number if spindles to take the data. I was basing my USB statement on empirical analysis of the capability of a moderately loaded USB system, where the best numbers we could achieve were 1 to 1.2 MBps. BTW I think USB is fine for its intended use, just not anything like a good mass storage connection. It is kind of like early IDE in performance characteristics with mass storage.

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