N+0, N+1, N+2 Failover Indicator

This is a BIG sizing improvement in Sizer where Sizer will always tell you if you are at N+0, N+1 or N+2 failover level for all resources (CPU, RAM, HDD, SSD) for each cluster.

Now as you make   changes in automatic sizing or manual sizing you always know if you have adequate failover.  Best practice is N+1 so you can take down any one node  (e..g take one node offline for an upgrade) and customer workloads can still run.

This can be very hard to figure out on your own.  ECX savings for example varies by node count.  Heterogenous clusters mean you have to find the largest node for each resource.  Multiple clusters mean you have to look at each separately.  Sizer does this for you !!

Here is what you need to know. 

Let’s take a two cluster scenario.  One called Cluster-1 is Nutanix cluster running 900 users for VDI and the Files to support those users.  The other is a standalone cluster for Files Pro with 100TB of user data

All clusters:

In a multi-cluster scenario All Clusters just provides a summary.  Here it shows two clusters and the hardware for the clusters.  In regards to N+1 indicator on the lower left it shows the worse cluster.  Both are N+1 and so you see N+1.  Had any cluster been N+0 then N+0 would be shown.  Great indicator to show there is an issue with one of the clusters

 

 

File cluster

This is the Standalone cluster for Files.  You see the hardware used in the cluster.  You see the failover level for each resource (CPU, RAM, HDD, SSD).  N+2 would indicate possibly could have less of that resource but often product options force more anyhow.  This is cold storage intensive workload and so HDD is the worse case.

Cluster -1

This is the Nutanix cluster for the VDI users.  You see the hardware used in the cluster.  You see the failover level for each resource (CPU, RAM, HDD, SSD).  This is core intensive workload and so that is the worse case.