04-21-2019, 05:14 AM
Maybe its just a defective card?
Nothing special is done in moOde for minimizing writes to boot media. Linux and many of the applications maintain disk logs of their activity. Having the logs persist after a reboot is sometimes crucial for troubleshooting. moOde does run a maintenance job every 6 hours (default) that purges a lengthly list of logs in /var/log to keep them from eating too much disk space.
Maybe I'm very lucky but over the past 5 years I've only had 3 cards go bad (and I don't know why) and most of my systems run 7/24 and experience heavy writes due to being reloaded constantly during development. The cards I use are SanDisk Ultra Class 10 consumer-grade cards. And yes I occasionally just pull the plug on some of my systems and of course there are the occasional power outages :-0
There are other SDCard memory options that provide higher levels of reliability for example eMMC or SLC NAND but they are more costly, especially SLC. I'd probably use one of these alternatives if I were experiencing issues and they were cost competitive with common MLC NAND based SDCards like the SanDisk consumer lineup.
https://allo.com/sparky/emmc.html
https://www.mouser.com/Embedded-Solution...55Z1yxxwsy
-Tim
Nothing special is done in moOde for minimizing writes to boot media. Linux and many of the applications maintain disk logs of their activity. Having the logs persist after a reboot is sometimes crucial for troubleshooting. moOde does run a maintenance job every 6 hours (default) that purges a lengthly list of logs in /var/log to keep them from eating too much disk space.
Maybe I'm very lucky but over the past 5 years I've only had 3 cards go bad (and I don't know why) and most of my systems run 7/24 and experience heavy writes due to being reloaded constantly during development. The cards I use are SanDisk Ultra Class 10 consumer-grade cards. And yes I occasionally just pull the plug on some of my systems and of course there are the occasional power outages :-0
There are other SDCard memory options that provide higher levels of reliability for example eMMC or SLC NAND but they are more costly, especially SLC. I'd probably use one of these alternatives if I were experiencing issues and they were cost competitive with common MLC NAND based SDCards like the SanDisk consumer lineup.
https://allo.com/sparky/emmc.html
https://www.mouser.com/Embedded-Solution...55Z1yxxwsy
-Tim
