Posted by user8446 on Feb 09, 2016; 11:40pm
URL: https://itus.accessinnov.com/How-long-will-the-eMMC-flash-memory-last-on-our-shields-tp23.html

As we all know, flash memory has a finite number of write cycles before bad blocks start to appear. I have no idea if the controller on the shield has wear leveling or not. That being said, if you are not using the web filter on your box I would comment out the updates for that as the whole thing gets downloaded and overwritten every time the update runs, decreasing the life of the memory. The whole IPS ruleset gets downloaded too instead of just the changes. I've attached the /sbin/fw_upgrade with the web filtering commented out saving memory writes and it runs much quicker too, about a minute and a half to finish and Snort is only offline for about 10 seconds (in bridge).

fw_upgrade.fw_upgrade