When formatting a large partition (10TB) that will hold only application data, does it make sense to have 'reserved for the super user' space? 

```
122065906 blocks (5.00%) reserved for the super user

```

My gut says 'no', but a professional system administrator (my former hosting vendor) insisted that this was a requirement etched\_in\_stone. 5% of 10TB is a whopping 500GB on a file system that is application specific storage!