VMware vSphere ESX 6.5 and vCenter 6.5 Configuration Maximums

The following listings are a comprehensive collection of configuration maximums from VMware products.

ESX 6.5

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

Virtual CPUs per virtual machine

128

64

32

8

4

2

1

RAM per virtual machine

6TB

4TB

1TB

255GB

65GB

16GB

3,6GB

2GB

Virtual SCSI adapters per virtual machine

Virtual SCSI targets per virtual SCSI adapter

15

Virtual SCSI targets per virtual machine

60

Virtual NVMe adapters per virtual machine

Virtual NVMe targets per virtual SCSI

adapter

Virtual NVMe targets per virtual machine

Virtual SATA adapters per virtual machine

Virtual SATA devices per virtual SATA adapter

30

Virtual disk size

62TB

2TB

IDE controllers per virtual machine

IDE devices per virtual machine

Floppy controllers per virtual machine

Floppy devices per virtual machine

Virtual NICs per virtual machine

10

USB controllers per virtual machine

USB devices connected to a virtual machine

20

Parallel ports per virtual machine

3

USB 3.0 devices per virtual machine

Concurrent remote console connections

40

Video memory per virtual machine

2 GB

512MB

Logical CPUs per host

576

480

320

160

16

Virtual machines per host

1024

512

80

Virtual CPUs per host

4096

2048

Virtual CPUs per core

25

RAM per host

12TB

256GB

64GB

LUNs per server

256

vCenter Server Maximums

Hosts per vCenter Server

2000

1000

300

200

Powered on virtual machines

25000

10000

3000

Registered virtual machines

35000

15000

4500

Linked vCenter Servers

Hosts in linked vCenter Servers

4000

Powered on virtual machines in linked vCenter

30000

Registered virtual machines in linked vCenter

50000

Concurrent Client connections

180

100

Number of host per datacenter

500

400

MAC addresses per vCenter Server

65536

USB devices connected at vSphere Client

Hosts per cluster

Virtual machines per cluster

8000

1280

Maximum concurrent host HA failover

Failover as percentage of cluster

100%

50%

Resource pools per cluster

1600

Resource pools per host

Children per resource pool

1100

Resource pool tree depth

12

Total virtual network switch ports per host

127

Maximum active ports per host

1016

1050

Virtual network switch creation ports

4088

Port groups

Distributed virtual network switch ports per vCenter

60000

20000

6000

Static port groups per vCenter

5000

Ephemeral port groups per vCenter

Hosts per distributed switch

350

Distributed switches per vCenter

VMDirectPath PCI/PCIe devices per host

VMDirectPath PCI/PCIe devices per virtual machine

Concurrent vMotion operations per host (1Gb/s network)

Concurrent vMotion operations per host (10Gb/s network)

Software iSCSI  NICs per server

Number of total paths on a server

Number of paths to a iSCSI LUN

Software iSCSI targets

NFS mounts per host

FC LUNs per host

FC LUN ID

16383

1023

255

FC Number of paths to a LUN

Number of HBAs of any type

HBA ports

Targets per HBA

Software FCoE adapters

Volumes per host

Hosts per volume

Powered on virtual machines per VMFS volume

Concurrent vMotion operations per datastore

Concurrent Storage vMotion operations per datastore

Concurrent Storage vMotion operations per host

Concurrent non vMotion provisioning operations per host

VMFS Volume size

64TB

Virtual disks per datastore cluster

9000

Datastores per datastore cluster

Datastore clusters per vCenter

ESX 5.0

Virtual disks

RAM per FT VM

64 GB

Virtual SAN disk groups per host

5

Magnetic disks per disk group

7

SSD disks per disk group

Spinning disks in all diskgroups per host

35

Components per Virtual SAN host

Number of Virtual SAN nodes in a cluster

Number of Virtual SAN nodes in a cluster (All-Flash)

Number of datastores per cluster

6400

3200

Virtual machine virtual disk size

2032GB

Disk stripes per object

Percentage of flash read cache reservation

Failure to tolerate

Percentage of object space reservation

Virtual SAN networks/physical network fabrics

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