How can I tell if I am running ESX 64bit version?

[jgalexan]

I currently have a VMware environment with VC2.5 and ESX 3.5 servers and many VMs. How can I tell if I am running ESX 64bit version?

We might want to start using Server 2003 64bit and wanted to know if there is any advantage to using ESX 64bit version.

Thanks

[oreeh · Accepted solution]

There's no 64bit version of ESX!

The only requirement for 64bit VMs is VT (or the AMD equivalent) and 64bit longmode support.

If the CPUs are capable of that simply enable VT in the BIOS and powercycle the system.

[jgalexan]

I do remember enabling VT in the BIOS at the time we installed the OS. I could not find anything regarding 64bit ESX, but wanted to ask.

Thanks for the info.