Vixel's InSpeed technology. Compaq recently announced that it will be using this technology in its future high-end...
products. Do see HDS benefiting from InSpeed integration?
For those of you unfamiliar with what Inspeed is, it is crossbar switch-based architecture that uses proprietary loop port logic for device connectivity. It can be implemented all the way down to a single ASIC (Application Specific Integrated Circuit) that can provide a "storage switch on a chip". Used internally in storage arrays, this technology may increase connectivity and throughput to Fibre-based disks.
Hitachi has been using similar crossbar switching technology inside the storage arrays since the inception of the Lightning product architecture. Inspeed has some cool capabilities that may be of use for other vendors to catch up. I think it may be advantageous for other storage vendors to follow suit with switch-based architecture, as the scalability of that design is usually better than existing bus-based designs. You will find that similar technology is also being used in server designs in order to scale multi-processor based servers using non-blocking crossbar switches internally. Such designs can be seen in AlphaServers from HP/Compaq and Starfire/StarCat servers from Sun. Using scalable switching servers with InfiniBand or similar I/O methods connected to a switched fabric storage network, which in turn is connected to scalable crossbar switch-based storage, produces a very capable "stack" for data access and processing.
Editor's note: Do you agree with this expert's response? If you have more to share, post it in one of our .bphAaR2qhqA^0@/searchstorage>discussion forums.
Dig Deeper on SAN switch
Related Q&A from Christopher Poelker
RAID can allow for better storage performance and higher availability, and there are many different RAID types. Read a comparison of RAID levels, as ...continue reading
SAN expert Chris Poelker discusses how to change the size of a LUN in a Microsoft cluster server environment.continue reading
SAN expert Chris Poelker compares connecting a SAN with wavelength cabling and dark fiber and discusses the pros and cons of each.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.