[PVE-User] Proxmox per VM memory limit

[Woods, Ken A (DNR)]

I'm not a staff member.  Just a warning--I might be totally wrong about all this.  Or...not.

IIRC, the coded limit is 4TiB per VM (I think there's a QEMU imposed limit at 42 bits...somebody correct me if I'm wrong.) Which gets into a whole big off-topic discussion about address paths and the size of page tables and their structure, so....yeah.  Anyway.

I'm going to guess (given your recent posts) that you don't have that much available on the hosts, so Mark's answer is still correct--it's as much as you have in your hosts.

So we can *all* bypass some back and forth:  Are you *really* trying to ask about memory over-commitment?
If so, the short answer is "Please don't do that if you care about stability, which we know you do. Use ballooning."
If not, please ask the question behind "how much memory can I allocate to a VM?"  
In short:  Why are you asking?

kw


-----Original Message-----
From: pve-user [mailto:pve-user-bounces at pve.proxmox.com] On Behalf Of Gilberto Nunes
Sent: Tuesday, October 02, 2018 4:45 PM
To: PVE User List
Subject: Re: [PVE-User] Proxmox per VM memory limit

Good. Nice to hear that.
But I need someone in the Proxmox staff could answer the question... Just to be more accurate about it.
Thanks

Em ter, 2 de out de 2018 17:53, Mark Adams <mark at openvs.co.uk> escreveu:

> assuming the OS in the VM supports it, as much as the host hardware 
> can support (no limit).
>
> On Tue, 2 Oct 2018 at 19:35, Gilberto Nunes 
> <gilberto.nunes32 at gmail.com>
> wrote:
>
> > Hi there!
> >
> > How many memory per VM I get in PVE?
> > Is there some limit? 1 TB? 2 TB?
> > Just curious
> >
> > Thanks
> > ---
> > Gilberto Nunes Ferreira
> >
> > (47) 3025-5907
> > (47) 99676-7530 - Whatsapp / Telegram
> >
> > Skype: gilberto.nunes36
> > _______________________________________________
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