Guest machine with more than 512GB RAM?

[hotwired007]

I have a new server that we are testing Proxmox on:

Dell R815 - 4x 16c @ 2.5GHz CPU, 1TB RAM, 6x 600GB HDD.

Is it possible to create a VM with more than 512GB through the GUI or can i only do it by modifying the VM file through the CLI?

Thanks

 

[spirit]

you can do it through CLI.

Indeed gui is limited to 512GB for now, I think it's time to update that

 

[m.ardito]

you can do it through CLI.

yes, you should be able to create the 512gb vm (or whatever) and then edit the .conf to set 1tb.
then stop/start (not restart).

Marco

 

[hotwired007]

I have updated my VM to have 1TB RAM (1048576) in the 100.conf file - now i'm getting 'PANIC: early exception 08 rip 246:10' on the debian machine. (my Ubuntu refuses to boot with same config)

When i update it to 512GB (524288) it works as expected. With 756GB (786432) is works fine too.

The physical server has 1TB RAM installed although the pve console shows 995.33GB capacity

 

[spirit]

Well, you need to keep some memory for the host process.

 

[hotwired007]

Yeah - i've just tried it with 995GB (1018880) RAM and it boots fine

 

[adamb]

I run centos6 VM's with 750GB of ram with no issues.