Hi All,
I am looking for hardware requirements (CPU, RAM, HDD) for installing a OpenStack HA cluster.
So far, I gathered few references:
- This article talks about CPU and HDD, but they do not comment on RAM.
- This article talks about CPU, RAM, and HDD, but it is quite old (2015) reference.
I am considering the cluster with: 3 Controller (for HA) + 1 Compute + 1 Storage.
I have following questions:
- What is the minimum hardware (CPU, RAM, HDD) requirement to install a OpenStack HA cluster?
- Can we have 3 Controller nodes installed on 3 Virtual Machines or do we need 3 independent (bare metal) servers?
- So in case of VM-based controllers, the cluster will be hybrid in nature.
- I do not know if this is even possible and a recommended design.
- Do we need the Platform Director node in addition to controller and compute/storage nodes?
Thanks in advance.
Anil.