[TUTORIAL] How to run Proxmox VE as a tmpfs memory resident operating system

[Roger Mangraviti]

Dear Proxmox Community,

openQRM would like to announce the new openQRM Community version 5.3.50 which now supports Proxmox VE 7.0 running as a tmpfs memory resident operating system.

This allows compute nodes, physical and virtual servers to pxe boot Proxmox VE or almost any linux operating system into a memory resident operating system. You can use this solution to boot Proxmox VE, Virtual Routers, KVMs and many other types of applications.

We have been running systems like this since 2011 and have found this solution to be quite stable. Normally a 2GB ram disk would suffice, however with a full installation of Proxmox VE with ceph and other dependencies a 4GB ram allocation is required for the Proxmox VE OS.

Pros

• No network or attached storage required to run a Proxmox node, great for using all attached drives as ceph storage
• It's memory resident, so its fast, several times faster than NVMe
• Security - reboot node and the original state is returned.
• Rapid node deployment
• Rapid node replacement, if a physical node goes down its quite easy to replace that node.

Cons

• It's memory resident
• Read Only Image based so operating system updates also needs to be done in the boot image as well.

Feel free to test drive this solution, reserve about 1 hour to install and build openQRM and Proxmox VE image.

Howto:

1. download openQRM Community v5.3.50
https://support.openqrm-enterprise.com/openqrm-build/hyper/openQRM-5.3.50-Community-Edition.tgz

2. Install openQRM on Debian
https://wiki.openqrm-enterprise.com/view/Install_openQRM_on_Debian

3. Build a Proxmox VE Image;
https://wiki.openqrm-enterprise.com/view/How_to_build_Proxmox_tmpfs_image


We maybe a bit slow on the forums, if so feel free to ask questions directly;
https://manage.openqrm-enterprise.com.au/submitticket.php?step=2&deptid=5


Cheers,
Roger Mangraviti