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The following table lists the maximum hardware capabilities that Virtual Machine Manager (VMM) allows per virtual machine when hosted on these virtualization platforms:
| Hardware | Virtual Server | Hyper-V | VMware ESX Server |
|---|---|---|---|
COM ports |
2 |
2 |
2 |
DVD drives |
4 (IDE) |
4 (IDE) |
4 |
Floppy drives |
1 |
1 |
2 |
Network adapters |
4 |
Emulated 4 Synthetic 8 |
4 |
Processors |
1 |
4 |
4 |
X86 Processor |
Yes |
Yes |
Yes |
X64 Processor |
No |
Yes |
Yes |
RAM |
3.7 GB |
64 GB |
16 GB in VMware Workstation 3.0 64 GB in VMware Workstation 3.5 |
IDE devices |
4 |
4 |
4 |
Size of IDE disk |
127 GB Note: Virtual Server must start from an IDE disk |
2040 GB |
Not allowed |
Serial ports |
2 |
2 |
2 in VMware Workstation 3.0 4 in VMware Workstation 3.5 |
SCSI controllers |
4 |
4 |
4 |
Devices per SCSI controller |
7 |
64 |
15 |
Size of SCSI disk |
2040 GB |
2040 GB |
2 TB |
Number of virtual CPUs |
1 |
4 |
4 |
Remote consoles per virtual machine |
Double the # of VMs running on the host |
1 |
10 |
Items in () are unblocked and unsupported in VMware ESX Server.