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Maximums

March 29th, 2015 Leave a comment Go to comments

Virtual Machine Maximums

 

Host Maximums

ESX 6.0 ESX 5.5 ESX 5.1 ESX 5 ESX 4.1 ESX 4.0 ESX 3.5 ESX 3 ESX 2 ESX 1
Logical CPUs per host 480 320 160 160 160 64 32 32 16 8
Virtual machines per host 2048 512 512 512 320 320 128 128 80 64
Virtual CPUs per host 4096 4096 2048 2048 512 512 128 128 80 64
Virtual CPUs per core 32 32 25 25 25 20 8 8 8 8
RAM per host 12TB 4TB 2TB 2TB 1TB 1TB 256GB 256GB 64GB 64GB
LUNs per server 256 256 256 256 256 256

 

vCenter Server Maximums

vCenter Server Maximums ESX 5.5 ESX 5.1 ESX 5 ESX 4.1 ESX 4.0 ESX 3.5 ESX 3
Hosts per vCenter Server 1000 1000 1000 1000 300 200 200
Powered on virtual machines 10000 10000 10000 10000 3000 2000
Registered virtual machines 15000 15000 15000 15000 4500 2000
Linked vCenter Servers 10 10 10 10 10
Hosts in linked vCenter Servers 3000 3000 3000 3000 1000
Powered on virtual machines in linked vCenter 30000 30000 30000 30000 10000
Registered virtual machines in linked vCenter 50000 50000 50000 50000 15000
Concurrent vSphere Clients 100 100 100 100 30
Number of host per datacenter 500 500 500 400 100
MAC addresses per vCenter Server 65536 65536 65536
USB devices connected at vSphere Client 20 20 20

 

Cluster and Resource Pool Maximums

ESX 6.0 ESX 5.5 ESX 5.1 ESX 5 ESX 4.1 ESX 4.0 ESX 3.5
Hosts per cluster 64 32 32 32 32 32 32
Virtual machines per cluster 4000 4000 4000 3000 3000 1280
Virtual machines per host 2048 512 512 512 320 100
Maximum concurrent host HA failover 32 32 4 4
Failover as percentage of cluster 100% 100% 50% 50%
Resource pools per cluster 1600 1600 1600 512 512 128
Resource pools per host 1600 1600 1600 4096
Children per resource pool 1024 1024 1024 1024
Resource pool tree depth 8 8 8 8 12 12

 

Network Maximums

ESX 5.5 ESX 5.1 ESX 5 ESX 4.1 ESX 4.0 ESX 3.5 ESX 3
Total virtual network switch ports per host 4096 4096 4096 4096 4096 127
Maximum active ports per host 1016 1050 1016 1016 1016 1016
Virtual network switch creation ports 4088 4088 4088 4088 4088
Port groups 512 256 256 512 512 512
Distributed virtual network switch ports per vCenter 60000 60000 30000 20000 6000
Static port groups per vCenter 10000 10000 5000 5000 512
Ephemeral port groups per vCenter 1016 256 256 1016
Hosts per VDS 500 500 350 350 64
Distributed switches per vCenter 128 128 32 32 16
e1000 1Gb Ethernet ports (Intel PCI?x) 32 32 32 32 32 32
e1000e 1Gb Ethernet ports (Intel PCI?e) 24 24 24 24 32 32 32
igb 1Gb Ethernet ports (Intel) 16 16 16 16 16
tg3 1Gb Ethernet ports (Broadcom) 32 32 32 32 32
bnx2 1Gb Ethernet ports (Broadcom) 16 16 16 16 16
forcedeth 1Gb Ethernet ports (NVIDIA) 2 2 2 2
nx_nic 10Gb Ethernet ports (NetXen) 8 8 8 4 4
ixgbe 10Gb Ethernet ports (Intel) 8 8 8 4 4
bnx2x 10Gb Ethernet ports (Broadcom) 8 8 8 4 4
be2net 10Gb Ethernet ports (Emulex) 8 8 8 4 4
VMDirectPath PCI/PCIe devices per host 8 8 8 8 8
VMDirectPath PCI/PCIe devices per virtual machine 4 4 4 4
Concurrent vMotion operations per host (1Gb/s network) 4 4 4 2 2
Concurrent vMotion operations per host (10Gb/s network) 8 8 8

 

Storage Maximums

ESX 5.5 ESX 5.1 ESX 5 ESX 4.1 ESX 4.0 ESX 3.5 ESX 3
Qlogic 1Gb iSCSI HBA initiator ports per server 4 4 4 4
Broadcom 1Gb iSCSI HBA initiator ports per server 4 4 4 4
Broadcom 10Gb iSCSI HBA initiator ports per server 4 4 4 4
Software iSCSI NICs per server 8 8 8 8
Number of total paths on a server 1024 1024 1024 1024
Number of paths to a iSCSI LUN 8 8 8 8
Qlogic iSCSI: dynamic targets per adapter port 64 64 64 64
Qlogic iSCSI: static targets per adapter port 62 62 62 62
Broadcom 1Gb iSCSI HBA targets per adapter port 64 64 64 64
Broadcom 10Gb iSCSI HBA targets per adapter port 128 128 128 64
Software iSCSI targets 256 256 256 256 256
NFS mounts per host 256 256 256 64 64
FC LUNs per host 256 256 256 256 256 256 256
FC LUN ID 255 255 255 255 255 255 255
FC Number of paths to a LUN 32 32 32 32 32 32 32
Number of total paths on a server 1024 1024 1024 1024 1024 1024 1024
Number of HBAs of any type 8 8 8 8 8
HBA ports 16 16 16 16 16 16
Targets per HBA 256 256 256 256 256 15
Software FCoE adapters 4 4 4
Volumes per host 256 256 256 256 256 256
Hosts per volume 64 64 64 64 64 32
Powered on virtual machines per VMFS volume 2048 2048 2048 256
Concurrent vMotion operations per datastore 128 128 128
Concurrent Storage vMotion operations per datastore 8 8 8
Concurrent Storage vMotion operations per host 2 2 2
Concurrent non vMotion provisioning operations per host 8 8 8
VMFS Volume size 64TB 64TB 64TB 64TB 64TB 64TB
Virtual disks per datastore cluster 9000
Datastores per datastore cluster 64
Datastore clusters per vCenter 256

 

Fault Tolerance Maximums

ESX 6.0 ESX 5.5 ESX 5.1 ESX 5.0
Virtual disks 16 16 16
Virtual CPUs per virtual machine 4 1 1 1
RAM per FT VM 64GB 64GB 64GB 64GB
Virtual machines per host 4 4 4 4

 

Virtual SAN Maximums

ESX 5.5
Virtual SAN disk groups per host 5
Magnetic disks per disk group 7
SSD disks per disk group 1
Spinning disks in all diskgroups per host 35
Components per Virtual SAN host 3000
Number of Virtual SAN nodes in a cluster 32
Number of datastores per cluster 1
Virtual machines per host 100
Virtual machines per cluster 3200
Virtual machine virtual disk size 2032GB
Disk stripes per object 12
Percentage of flash read cache reservation 100
Failure to tolerate 3
Percentage of object space reservation 100
Virtual SAN networks/physical network fabrics 2

All informations are based on VMware documentation:

 

Source: Thanks and credits goes to Florian Grehl from Virten.net

sanderdaems

Sander Daems is founder and author of this blog and working as a Sr. Infrastructure Consultant by IT-Value. Sander has over 10 years experience in IT, primary focus: virtualization, storage and SBC

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