Differential D2240 Diff 7738 docs/infrastructure/hypervisors.rst

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				===========
				Hypervisors
				===========

				Software Heritage uses a few hypervisors configured in a Proxmox cluster

				List of Proxmox nodes
				=====================

				- beaubourg: Xeon E7-4809 server, 16 cores/512 GB RAM, bought in 2015
				- hypervisor3: EPYC 7301 server, 32 cores/256 GB RAM, bought in 2018
				ardumontUnsubmitted Not Done Inline Actions orsay? ardumont: orsay?

				Per-node storage
				================

				The servers each have physically installed 2.5" SSDs (SAS or SATA), configured
				in mdadm RAID10 pools.
				A device mapper layer on top of these pools allows Proxmox to easily manage VM
				disk images.

				Network storage
				===============

				A :ref:`ceph_cluster` is setup as a shared storage resource.
				It can be used to temporarily transfer VM disk images from one hypervisor
				node to another, or to directly store virtual machine disk images.