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Technology Stocks : Son of SAN - Storage Networking Technologies -- Ignore unavailable to you. Want to Upgrade?

To: David A. Lethe who wrote (3091)	4/14/2001 10:10:13 PM
From: Vikas Deolaliker	Read Replies (1) \| Respond to of 4808

I think security and QoS are secondary issues for moving block data on a SAN. The primary issue is reliability. TCP is inherently less reliable, remember internet was designed for "best effort" delivery. Imagine having a few frames of your video dropped for VOD type application? I don't want to throw another protocol into this, but I honestly believe iSCSI is not the best protocol for reliable transfer it may be good for SAN over MAN type situations. However, for within a SAN, FC and later infiniband is the best solution. My $0.02 worth. Vikas

To: David A. Lethe who wrote (3091)	4/14/2001 10:51:24 PM
From: J Fieb	Read Replies (2) \| Respond to of 4808

David A L., There is much many would like to ask you, but you wouldn't be able to answer. I would like to move slightly away from the Non Disclosure Agreement areas and ask your opinion on some technology that will have to follow in the evolution of the data center. So here are some things that your perspective would be helpful... If they remade the Graduate with some modern equivalent of Dustin Hoffman and did the pool scene perhaps they would say VCSEL instead of Plastics? lightreading.com Great background for those new to this arena. Just a few excerpts... Unfortunately, the materials used to make 850nm VCSELs don't translate well to longer wavelengths. As yet there are no commercial devices that operate at the telecom wavelengths of 1310 and 1550 nm. For more on why long-wavelength VCSELs are so darn tricky to make, see Challenges, coming next. The wavelengths are important for the distance travelled.... an 850 nanometer serial interface supports a minimum distance of 65 meters, and a 1310 nanometer WDM interface supports enterprise backbone applications up to 300 meters. For single mode fiber applications, 1310 nanometer and 1550 nanometer interfaces provide 10 km and 40 km reach options, respectively. For more information on supported physical layer interfaces, visit the 10 GEA web site at .... Why? A)...Laser device usage is regulated by government agencies to ensure eye safety. Because the human eye is 20 times less sensitive to longer wavelengths compared to 850nm wavelengths, 1300nm lasers may be operated at higher power levels. More power can be coupled into the fiber while staying within eye-safety limits, enabling transmission over a longer range. From Infineon pr piece. Have read that 10GE and 10 FC use same transeiver and same optical cables. Iband and 3 GIO will use optics for connects because copper is all done as a connect some day, It seems even inside the box... The technology focus is point-to-point, dual uni-directional serial links that can migrate to optical when copper become unusable (at about 10-12GHz). Intel plans to deploy 3GIO in 2003 and as the successor to AGP8x. What do you think about the future of interconnects? Any opinions on FNSR, EMKR, others? Any opinions on VSCELs?