Nutanix hyper converged HCI platform is hypervisor agnostic and supported Nutanix Acrpolis Hypervsor AHV, VMware Esxi and Hyper-V with full stack.
But Nutanix cluster has its own limitations, scalability and maximums as per subject to hypervisor limitation or maximums.
Nutanix cluster size limitation, maximums and scalability entities are VMs, volume groups, vDisk, snapshots, Memory, vCPU, RDM vDisk, NFS data stores, storage pool, storage container, Replication factor, Redundancy factor, Prism and CVM console access and iSCSI.
Nutanix tested the Nutanix cluser maximums, scability and limitions on each supported hypervisor and values for entities in a Nutanix cluster.
| Nutanix cluster Entity | Supported Maximum |
|---|---|
| VMs or volume groups | Up to available hardware resources and hypervisor limitations (no known logical limit)Async DR: 200 VMs or volume groups for each protection domain, or consistency group Metro Availability: See the Maximum Limits for Metro Availability table in Data Protection Guidelines (Metro Availability) topic.1200 files for all the entities per vStore |
| vDisks (including snapshots) | 600,000 |
| vDisk size (limited by hypervisor or guest OS) | ESXi 5.5 and above = 62 TB ESXi 5.1 and below = 2 TB minus 512 B Hyper-V vhdx format = 64TB Hyper-V vhd format = 2TB AHV = No known limit ( vDisk size : 9EB – Exabyte ) |
| vCPUs per VM | Constrained by the number of logical processors available to the VM. |
| Memory per VM | Constrained by physical RAM capacity. |
| RDM vDisks | 256 per vZone or ESXi host |
| NFS datastores | Nutanix = 256 per host ESXi 5.x and later = 256 per host |
| NFS datastore size | Available disk capacity in the Nutanix cluster (no known logical limit) |
| Small files (<512 KB) on NFS datastores | 2.5 GB per Nutanix node |
| Storage pools | 2 per Nutanix cluster |
| Storage pool size | Available disk capacity in the Nutanix cluster (no known logical limit) |
| Physical disks per storage pool | Number of disks in the Nutanix cluster (no known logical limit) |
| Storage Containers (created on Nutanix cluster) | 256 per Nutanix cluster |
| Storage Container size | Available disk capacity in a storage pool (no known logical limit) |
| Node per cluster | No limit |
| Replication factor | 3 |
| Redundancy Factor | 3 |
| Nutanix management interface (Prism) simultaneous connections | 20 clients per Controller VM |
| iSCSI | 128 LUNs per node 256 LUNS per Volume Group No limit for the number of volume groups if you do not exceed maximum number of LUNs per node |
Nutanix clusters are also subject to the vSphere maximum values documented by VMware. For a list of the vSphere maximums, see Configuration Maximums for the version of vSphere you are running.
Nutanix supports up to 50 VMs for each storage container if you are using Microsoft VSS-based backups in Hyper-V.
If the number of VMs in each storage container increases to more than 50, backup jobs start to get into NFS timeouts.
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