A new tool, Ganeti has been announced as a Beta release. It is an open source virtual server management software built on top of Xen and other open source software.
Ganeti started as a small project in Google's Zurich office. They've been using it internally for a while, and are now sharing it under GPLv2.
At Google, they've used Ganeti in the internal corporate environment to facilitate cluster management of virtual servers in commodity hardware, increasing the efficiency of hardware usage and saving space, power and cooling. Ganeti also provides fast and simple recovery after physical failures.
You can download it from http://code.google.com/p/ganeti
Features
Ganeti provides the following features for managed instances:
- support for Xen virtualization
- recommended cluster size 1-25 physical nodes
- disk management using either plain LVM volumes, local-disk raid1 mirrors or across-the-network raid1 (using DRBD) for quick recovery in case of physical system failure
- export/import mechanism for backup purposes or migration between clusters
Ganeti does not offer
- live migration support
- fully virtualized instances (only paravirtualization support)