Ralph Stirling wrote: > One show stopper I found with the RPi was the high probability > of SD card corruption during power cycles (power failure without > full OS shutdown first). Is the BeagleBone Black immune to this > problem? The quoted ten second shutdown is good, but I'd like > to have the flash image survive unforeseen power failures. If > it handles those fine, then I'm ready to get excited about it. > This is a problem that has been around for some time. it is almost certainly more complicated than at first glance. it may be some kind of interaction between the writes to the SD card and the wear leveling algorithm in the card. Apparently, some people have been running for years with no trouble, and others have SD cards become completely unusable within weeks. i have a couple units in the field with the original Beagle Board, and have had some minor trouble with corrupted SD cards, but my fix is to plug them into a desktop PC with card reader and do an fsck on them. That has always brought them back. Our units run in an industrial equipment rack and are powered on and off willy-nilly by the users, and nobody in the field has reported a dead one, yet.
If you read the R Pi and Beagle discussion lists, there is a LOT of traffic about this problem. I have been using ext3 and noatime settings on the fstab, which seem to help. some people report ext4 has some kind of serious interaction that kills SD cards (it isn't supposed to...) Jon ------------------------------------------------------------------------------ Try New Relic Now & We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, & servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
