Building the Rackspace Open Cloud with XenServer and OpenStack

on YouTube ↗17m

" summary

Rackspace runs OpenStack on XenServer by bootstrapping a single Inova seed VM that installs API, DB, queue and then provisions Nova compute VMs across hosts; deployment pulls trunk daily, packages code in Debian + virtualenv and pushes updates via masterless puppet and BitTorrent pre-stage to cut deploy time from hours to minutes. Operations split infrastructure into layer‑2 cells (goal: million hypervisors), manage dozens of cells per region, struggle with DB migrations, IO swapping, metering, and upgrades between XenServer 5.5–6.2 (6.2 adds live migration).

AI-written summary · about

" chapters (11)

1. 0:00Introduction
2. 0:39Deployment
3. 1:48XenServer
4. 2:59Units of Capacity
5. 3:49Total Available Capacity
6. 5:54Deployment Strategy
7. 7:15Scale
8. 9:37Scaling
9. 11:07Release schedule
10. 12:14IO scheduling
11. 15:20New VMs

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