On 13-Dec-18 18:09, Fred Gleason wrote: > On Dec 13, 2018, at 11:54, Stephan Guilloux > <stephan.guilloux at crisalid.com <mailto:stephan.guilloux at crisalid.com>> > wrote: > >> Stress test still running on reputable brand with no PB, after 6 or 7h. >> >> During this stressing session, we found a few broken SD, from another >> reputable brand. >> Not all cards, though, but enough to put some confusion... ;-) > > Well, remember, we are dealing with flash RAM here. After enough > write/erase cycles, it *will* wear out. The goal is to optimize the > overall system to get maximum lifetime out of the media. For example, > on our production setups we do things like putting ‘/var/log’ on tmpfs > (it doesn’t matter for the particular application that the log data > evaporates after reboots). That greatly reduces wear on the media, > while still allowing log data to be accessed during a session for > debug purposes. /tmp, /var/log, /var/tmp (and a few others) need TMPFS, yes. > > Cheers! > > > |----------------------------------------------------------------------| > | Frederick F. Gleason, Jr. | Chief Developer | > | | Paravel Systems | > |----------------------------------------------------------------------| > | You can never tell which way the train went by looking at the | > | tracks. | > | -- Kramer's Law | > |----------------------------------------------------------------------| > > > _______________________________________________ > Arm-dev mailing list > Arm-dev at centos.org > https://lists.centos.org/mailman/listinfo/arm-dev