Proxmox specifically isn't much more than a wrapper for standard Linux KVM, which can support nested virtualization. In my limited experience with nesting, it doesn't work half bad as one would expect, but I haven't used it in a stressed environment with anything substantial running that way.
On Tue, Jan 19, 2021 at 1:53 PM William Herrin <b...@herrin.us> wrote: > On Tue, Jan 19, 2021 at 9:18 AM Bryan Holloway <br...@shout.net> wrote: > > Perhaps I'm missing something, but in your #1 example "Cloud", what > > prevents me from running a Proxmox ISO (which is more or less Debian) > > vs. a "standard" Debian install on the provider's virtual server? > > Hi Bryan, > > I haven't used Proxmox but from a 60 second glance through Google that > looks like you're asking for nested virtualization. If it works at > all, you'd take a double-hit on everything that wants to run in ring > 0, a double-hit on virtualized I/O and a double-hit for OS overhead > making the result more than a little sluggish. Kinda has "bad idea" > written all over it. > > As I understand it, you can "cat /sys/module/kvm*/parameters/nested" > in one of the service provider's VMs and if the answer is "1" or "Y" > for the CPU type which matches the exposed CPU then what you're asking > for will probably work. For some definition of work anyway. > > > I use Vultr for my primary BGP exit and have found it largely > painless. The VMs I have there DO NOT support nested virtualization. > They do claim a bare metal offering but it's currently listed as sold > out in all of their data centers. They also claim to provide mountable > block storage for compute instances up to 10TB per, but I haven't > worked with that feature, I presume it only applies to virtual > servers, and it looks like it's only available in one of their data > centers. > > Regards, > Bill Herrin > > > > -- > Hire me! https://bill.herrin.us/resume/ >