Seems that I'll be attending the Women's March on Washington on 2017-01-21. It should be a great event and also a great opportunity to take a few photos.
Getting there will be interesting given the number of people planning on attending. Plus they're limiting bag sizes and forbidding backpacks. This will make things hard on me as I'll have to keep anything I need in my pockets.
Based on this experiment with ZFS it appears that using 'zfs replace' on a good or semi-good disk will keep the disk in use during the replace.
Since I've started playing WoW again and doing a bit of multiboxing I figured out that keeping my WoW WTF folder in a Git repo is very handy. The WTF folder holds things like keybinds, window layouts, UI data, and addon data.
With this setup I can use scripts and other tools to automatically make changes to my WTF files without fear of messing anything up in an irreparable way. Plus I can easily see changes to files and such. All it takes is a "git init" and then "git commit" after I run WoW or make any manual/scripted changes.
An interesting article on huge pages in Linux and its affect on Casandra. The "-XX:+AlwaysPreTouch" flag looks particularly interesting.