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Questions?

August 24, 2012 Leave a comment

I recently checked my WordPress stats, and I’m starting to get a fair amount of traffic for a personal, unadvertised blog.

But I’m not satisfied with that.

One of the WordPress traffic reports include the search criteria that lead visitors to my site. I can tell based on the search criteria that some of them didn’t get the answer they were looking for. For example, someone searched “tamiya 4-speed double gear box” and ended up at my blog. I assembled one of those as part of my Heat Seeking Robot project, but didn’t provide details as that wasn’t the focus of the project. But I would provide a how-to, if someone asked 🙂

So I ask again – if you have a project, or a question, please feel free to comment on the blog or email me. I started this blog as a way to help others with their projects, as well as find some interesting puzzles for me to solve.

 

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Disk Read Speed and SATA Speed


So here I am, minding my own business, testing out HD Tune as a way to check the health of the disks in my RAID array. While doing some basic tests, I see one of my drives is only reading at about 90 MB/sec.

Wait a second – my motherboard has SATA 3.0 connections, rated up to 6.0 GB/sec… gigabytes mind you, not megabytes. I did some reading over at Toms Hardware to make sure I wasn’t crazy (check out the post about disk read speed), and sure enough, 90 MB/sec is about right for a 7200 RPM disk drive. Pretty extreme gap between 90 MB/sec and 6 GB/sec.

This, readers, is where I am personally confused – what kind of consumer drive or peripheral can really get the full value out of the SATA 3.0 interface? I’ll be sure to post back if I come up with the answer myself.

Update: So, first things first. SATA 3.0 supports speeds up to 6 gigabits (Gb) per second, not gigabytes (GB). Looks like some of the nicer solid state drives can come close to fully utilizing the 6Gb/sec speeds (thanks to Dan Fischer, former co-worker and IT extraordinaire for setting me straight).

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