Comment 3 for bug 1508947

https://monitoring.infra.mirantis.net/events.php?triggerid=29193&source=0&show_unknown=1&hostid=10191&stime=20151128104716&period=3600&sid=e6b5f95264223ba0

Now we have <15% looks like nothing changed there.
Btw, you are free to use one of our storages for that to clean up all your stuff localy if you have no place where to put files.