How we scaled OpenStack to launch 168,000 cloud instances


JavaCruft

In the run up to the OpenStack summit in Atlanta, the Ubuntu Server team had it’s first opportunity to test OpenStack at real scale.SM_FS_15K_Frt_web-lo

AMD made available 10 SeaMicro 15000 chassis in one of their test labs. Each chassis has 64, 4 core, 2 thread (8 logical cores), 32GB RAM servers with 500G storage attached via a storage fabric controller – creating the potential to scale an OpenStack deployment to a large number of compute nodes in a small rack footprint.

As you would expect, we chose the best tools for deploying OpenStack:

  • MAAS – Metal-as-a-Service, providing commissioning and provisioning of servers.
  • Juju – The service orchestration for Ubuntu, which we use to deploy OpenStack on Ubuntu using the OpenStack charms.
  • OpenStack Icehouse on Ubuntu 14.04 LTS.
  • CirrOS – a small footprint linux based Cloud OS

MAAS has native support for enlisting a full SeaMicro 15k chassis in a single…

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