Just set up nginx caching and wondering whether it’s working properly? You can check it pretty easily: curl -I URL.goes.here That should return a bunch of information, but the important bit is: X-Proxy-Cache: MISS Well, in this case it’s not working. If it’s working you’ll see a HIT there.
If you have enabled compression on a ZFS folder you can check to see just how much disk space you’re saving. Use the following command: sudo zfs get all [poolname]/[folder] | grep compressratio An example: sudo zfs get all backup01/data | grep compressratio returns the following: backup01/data compressratio 1.50x …