[Beowulf] SSD prices

Lux, James P james.p.lux at jpl.nasa.gov
Fri Dec 12 12:15:22 EST 2008



> Reliability should be fine in laptops, though I'd be less
> keen to deploy a rack full of them - they're a lot more
> sensitive to electrical noise than traditional HDDs when both
> reading and writing, so their reliability in these situations
> depends on how good the ADC and DAC converters are in the
> chips, and how much space they burn for ECC. The fact that
> the manufacturers don't spec the uncorrected/miscorrected
> error rate under any circumstances makes me a tad worried.

That's not a specification that is easily "measureable" or tested, so it doesn't get published. Heck, I'd be happy to run across a "flash memory error simulator" to test our EDAC implementations here. Sure, you can cobble a "flash emulator" up in a FPGA, but who's to say if it's realistic.

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