openstack/ha-guide
Code Issues Proposed changes
352f5d301b
ha-guide/doc/ha-guide/source/hardware-ha-basic.rst
Shuquan Huang 078120b5df Fix node arch and install Guide links in HA Guide Hardware setup 
The 'neutron' and 'nova-network' links point to the Kilo version of the
Install Guide, as the hardware setup is based around that 3-node
architecture.
The Liberty Install Guide now uses a 2-node architecture. The HA Guide
should be updated to reflect this 2-node architecture, and these two
links should be updated to the Liberty Install Guide.

Change-Id: I36a0fd0605ee9c8837c1f66318550e82c3f74fa2
Closes-bug: #1506374
2015-10-27 16:05:42 +08:00

1.8 KiB
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Hardware setup

The standard hardware requirements:

However, OpenStack does not require a significant amount of resources and the following minimum requirements should support a proof-of-concept high availability environment with core services and several instances:

[TODO: Verify that these numbers are good]

Node type Processor Memory Storage NIC
controller node 1-2 8 GB 100 GB 2
compute node 2-4+ 8+ GB 100+ GB 2

For demonstrations and studying, you can set up a test environment on virtual machines (VMs). This has the following benefits:

  • One physical server can support multiple nodes, each of which supports almost any number of network interfaces.
  • Ability to take periodic "snap shots" throughout the installation process and "roll back" to a working configuration in the event of a problem.

However, running an OpenStack environment on VMs degrades the performance of your instances, particularly if your hypervisor and/or processor lacks support for hardware acceleration of nested VMs.

Note

When installing highly-available OpenStack on VMs, be sure that your hypervisor permits promiscuous mode and disables MAC address filtering on the external network.