guidance on size/characteristics of name space volume for cluster with ~750TB of data

[jrs <botemout@xxxxxxxxx>]

Greetings,

In my testing of gluster I've just put my name space directory
(which I'm replicating with afr) on /.

Is this standard practice?  If not, are there any recommendations
for how large the volume should (as a fraction of expected data
size)?

Thanks
JR