I've finally found how to enable compression in btrfs, and would like to do so. However, as my main drive, I'm not really wanting to risk a change that could corrupt the hard drive.
Everything I've read indicates that these options are safe to change, as they only apply on new writes, but I'd like some more assurance...
Can I have a rough explanation on how the compression algorithm works? Is it per file (as I think it has to be?)
After this is on, what options/commands are there to recompress the hard drive?