NetBSD on RPi: Minimizing Disk Writes

Posted by slacker_mike on Mar 26, 2013 9:35 PM EDT
Bit Pattern Construction; By Richard Neswold
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I recently installed NetBSD on my RaspberryPi. Although not all the hardware is fully supported, enough is there to make it a usable system. It's nice to have my RPi provide the same system experience (configuration, organization, etc.) as other NetBSD machines I maintain. A big "Thank you!" to the developers that made this possible. One concern I have, however, is that the boot drive is an SD card. Solid state cards have limited write cycles and I worry that, since most Unix systems assume a mechanical drive which allow essentially infinite writes, my SD card will not last very long. To measure this, I monitored the disk writes using 'iostat' and was disappointed in how many writes were occurring on an otherwise idle system.

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