Naked Science Forum
Non Life Sciences => Geek Speak => Topic started by: Titanscape on 14/02/2012 16:56:14
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I am playing with linux, booting from sdhc and micro sd and usb drives, which memory devices are good for this, fast readers, 30 mb/second... without encryption software...?
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USB3 drives are pretty much the fastest at the moment, but a little pricey. Use a USB2 flash drive, that uses SLC storage is the next fastest. Of course the cheapest flash drives are MLC cells, so remember that heavy writing will kill it fast. SD cards will be slower as there are multiple conversions in each data transfer. If you can get some CF cards and a PCI card reader for them they are basically an IDE interface. That would be about equal to USB2 at best, depending on the actual card memory.
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I think there are also a couple of ESATA Flash drive memory sticks.
Or, you could take an SATA SSD and wire it for ESATA.
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Did you get anything?
I see that USB 3.0 (5 Gbit/s) is faster than ESATA (1.5 or 3 Gbit/s), at least in theory.
However, at least with USB 2, I find it can slow down my computer considerably.
If you have a device that is native SATA, and then is converted to USB 3.0, then you would not expect to get anything better than the original SATA performance.
I see there is an Adata N002 SSD drive that provides ports for both SATA (not esata, but you can use an adapter), as well as USB 3.0, both on the same device.
Of course, one can't know for sure how well it is built. For most of the tests, SATA seems to edge out the USB 3.0 on that drive, but both are very similar.
There are also SATA 6G (6 Gbps) SSD drives coming out. Presumably they could also be run with esata with the right adapters.
Obviously SATA 6G or USB 3.0 need the right interface on the computer end to be of any use.
I would like to get an external drive to try Windows 8 + SDK with. Perhaps I'll just find something cheap.