Am 29.06.2014 17:21, schrieb [email protected]:
I was just curious -
I'm using my BBB rev C as a datalogger (among other things.) I'm going to
be writing approximately 200 bytes of data to a mySQL database a minute
pretty much 24x7 (somewhere around 300Kb per day I'm guessing.) I'm not
going to be doing much erasing of data; maybe occasional purges of old
data, but not very often. Mostly it will be used to store the sensor
values, and then I'll write a webserver front-end to access the data, do
aggregation and charting, etc.
At this point, my eMMC has about 2.3GB free (I did a lot of cleanup,
removing the x system, etc.) At this point, at the current write rate,
theoretically I could write for around 20 years before the drive fills up.
What I'm curious about though is - knowing my current usage, and that it's
not anticipated to change very much in the future, how well will the eMMC
hold up? I've been doing a lot of googling, but haven't really found any
write cycle information for the Kingston ke4cn2h5a on the board.
If do you don't care to lose some datas in case of crashes use a ramdisk
and sync the contents occasionally (especially at a normal shutdown) to
the eMMC.
Alexander Holler
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