June 10, 2003

Revenge Against Overconfidence

Ugh. I did not sleep very well last night. Sleeping in 5-10 minute bursts is no fun. One of those mornings where you feel like you've woken up enough times for it to be 10:00 or 11:00, but it's still only 6 or so. Any of a number of things could be the source of that trouble..

Well, my Cat 6 cable experiment seems to have made things worse so far, though I haven't managed to swap the connecting cable yet. Yesterday, I'd picked up some DB9 connectors from Radio Shack, but I got male connectors instead of female ones. I guess I'll take another trip out today and get the right stuff. I should go buy some food too.

Oh, and I want to buy Radiohead, which is probably already sold out. Maybe I should go do that at Best Buy, so I can possibly pick up the third season of Deep Space Nine.

I've been reading more about network technologies and buses, learning little bits here and there. I guess InfiniBand isn't quite as fast as I thought, but it still sounds pretty cool. It's basically a cross between a computer bus and a network, so you can share your computer's bus with others. You could access the modem in another machine directly, for instance. This is most interesting for clustering applications..

HyperTransport is pretty wicked-fast, at least on the high end. In theory, I think it could do the same sort of things that InfiniBand does, but I think it's more being designed as an internal system bus rather than a combination internal/external one. At it's core, it uses serial links, though they can be ganged together to make faster connections.

Both the AMD Opteron and the IBM PowerPC 970 are designed to work with HyperTransport. I'm still not quite sure if Intel has some analog of it or not (probably, I just haven't figured out what it is yet).

I've written a few times about various types of Ethernet, but my memory isn't perfect, and some of the sources of information I have aren't complete. I think I may pick up the O'Reilly book Ethernet: The Difinitive Guide at some point.

One of the most interesting things I came across involves a merger of sorts between two long-standing rivals ATA (IDE) and SCSI. Serial ATA drives will be compatible with Serial Attached SCSI. You will be able to mix and match drives. Not exactly sure how you would tell the difference between them, though, or if it's even relevant.

One question I have is, will you be able to use Serial Attached SCSI drives in Serial ATA-based systems? Or does it just go the other way around? If things go both ways, I think the next few years will be an interesting exercise in marketing. How would the cost of one be justified against the other if they're compatible?

Posted by mike at June 10, 2003 10:30 AM | Food , Hardware , Music , Self , TV | TrackBack
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