On Jun 3, 2014, at 3:38 PM, Fred <fcoffey at misernet.net> wrote: Hi all, For those of you who are running SIMH on Raspberry Pi, how are you getting around the fact that lots of writes on your SD card will eventually trash it? I am considering moving my VAX instance to my Raspi, but didn't want to eat an SD card ... ;) It s worth doing the experiment to see whether (and when) this is a problem in practice. Flash storage devices like SD cards do wear leveling , and if that s implemented reasonably well, you can get a lot of life out of a card. The other consideration is that they only cost a couple of dollars, so why worry about it (given adequate backup)? paul