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Proxmox vs Ganeti vs oVirt vs OpenStack vs ... Is anyone aware of a good comparison of the solutions in this space?

• sound_of_basker 10y ago
  Honestly, its just a pick one and power through. I just look at the company backing it, the stars on Github, throw in a prayer, etc.
• ymse 10y ago
  I haven't used Proxmox or oVirt (but know roughly their strengths), but can tell you right away that Openstack almost certainly is not what you want. Unless you expect CERN or Rackspace-level traffic, and are prepared to fork it and throw a dozen engineers at it. The Openstack documentation is terrible, the user interface is awkward and clunky, and the configuration files for each component are several-thousand lines of Python code. Unsurprisingly it has more bugs than New Zealand, and regularly breaks in inexplicable ways. Additionally it does not support crucial features such as node evacuation or rebalancing, and you can't even use the built-in scheduler to pick a new host when live migrating.. And good luck upgrading from one version to the next. If you're a small shop, oVirt or Proxmox are both solid options. Ganeti fits here too, but has a much higher barrier to entry (no web UI or guest OS support by default). Source: used Ganeti for 6 years at three different sites, and recently resigned from my current job after one year of fighting Openstack because I could not convince my colleagues to pick a better platform.