Ability to automatically limit I/O if account is using excessive amounts
Some users can't configure their websites properly and create lots of I/O. For example there are users that install cache plugins in their Wordpress installations but have no clue how to properly configure the plugin. In some cases this ignorance leads to lots of data being read/written 24/7.
It would be awesome if there was some option to automatically limit I/O for accounts that use excessive amounts. Some ideas:
average I/O > 90% of max I/O last 10 minutes -> Limit I/O to 10% of normal limit until average I/O has been less than 500 kb/s for at least 60 min
average I/O > 50% of max I/O last 60 minutes -> Limit I/O to 10% of normal limit until average I/O has been less than 500 kb/s for at least 60 min