Data is everything in this modern IT world and we want to have as much storage capacity as possible in our infrastructure.

Let’s say you have a new Nutanix cluster and want to know the recommended maximum storage utilisation capacity of the cluster.

NOTE :-

We should not try to utilise the cluster to it’s peak storage as we need to have sufficient space available in case a node or a disk fails to rebuild the data.
 

Whenever a disk fails in a Nutanix cluster, the extent groups of that disk needs to copied to another disk to ensure fault tolerance, same goes for a node failure.

So how can we calculate the maximum storage utilisation of our cluster and if different scenarios, if we have RF-3 or if we have RF-2?


Please go through the KB-1557  to understand the formula to calculate the maximum recommended usage for a cluster.