The virtual machine maximums represent limits applicable to compute, memory, storage virtual adapters and devices, network virtual devices, virtual peripheral ports, and graphics video device.

Table 1. Virtual Machine Maximums

Item

Maximum

Compute

Virtual CPUs per virtual machine (Virtual SMP)

128

Memory

RAM per virtual machine

6128 GB

Virtual machine swap file size

6128 GB

VMFS3 with 1 MB block maximum swap size is 255 GB. Recommended solution is VMFS5, not VMFS3 with bigger block size.

Storage Virtual Adapters and Devices

Virtual SCSI adapters per virtual machine

4

Virtual SCSI targets per virtual SCSI adapter

15

Any combination of disk or VMDirectPath SCSI target.

Virtual SCSI targets per virtual machine

60

Virtual NVMe adapters per virtual machine

4

Virtual NVMe targets per virtual SCSI adapter

15

Virtual NVMe targets per virtual machine

60

Virtual disk size

62 TB

IDE controllers per virtual machine

1

Supports two channels (primary and secondary) each with a master and slave device.

IDE devices per virtual machine

4

Devices can be either CD-ROM or disk.

IDE CDROM devices per virtual machine

4

Floppy controllers per virtual machine

1

Floppy devices per virtual machine

2

BIOS is configured for one floppy device.

Virtual SATA adapters per virtual machine

4

Virtual SATA devices per virtual SATA adapter

30

Devices can be either CD-ROM or disk

Networking Virtual Devices

Virtual NICs per virtual machine

10

Any combination of supported virtual NICs.

Virtual RDMA Adapters per Virtual Machine

1

Virtual Peripheral Ports

USB host controllers per virtual machine

1

USB 1.x, 2.x and 3.x supported. One USB host controller of each version 1.x, 2.x, or 3.x can be added at the same time.

USB devices connected to a virtual machine

20

Guest operating systems might have lower limits than allowed by vSphere.

Parallel ports per virtual machine

3

Serial ports per virtual machine

32

Miscellaneous

Concurrent remote console connections to a virtual machine

40

Graphics video device

Video memory per virtual machine

2 GB