[one-users] OpenNebula 4.4 Retina is Out!

[Tino Vazquez]

Dear Community,

This is the official announcement of the release of OpenNebula 4.4,
codename Retina. The principal aim is to develop the most demanded and
useful features, reducing the complexity in order to better support
the most used functionality. As a project driven by user needs, this
release includes important features that meet real demands from
production environments, with a focus on optimization of storage,
monitoring, cloud bursting, and public cloud interfaces.

OpenNebula 4.4 Retina includes support for multiple system datastores,
which enables a much more efficient usage of the storage resources for
running Virtual Machines. This feature ships with different scheduling
policies for storage load balancing, intended to instruct OpenNebula
to spread the running Virtual Machines across different storage
mediums to optimize their use. This translates in the ability to
define more than one disk (or other backend) to hold running VMs in a
particular cluster. Monitoring subsystem in OpenNebula underwent a
major redesign as well, effectively switching from a pulling mechanism
to a pushing model, with the implications in scalability improvements.

An important effort has been made in the hybrid cloud model (cloud
bursting). Using the AWS API tools have been deprecated in favor of
the new Ruby SDK released, which allows the support of new AWS
mechanisms like for instance IAM. Also, now is possible to fully
support hybrid VM templates. Moreover, the AWS public cloud interface
implemented by OpenNebula has been revisited and extended to support
new functionality, as well as improved so the instance types are
offered to the end user from OpenNebula templates.

This is a stable release and so a recommended update that incorporates
several bug fixes since 4.4 RC. We've done our best to keep
compatibility with OpenNebula 4.2, so any application developed for
previous versions should work without effort. In any case, be sure to
check the compatibility and upgrade guides. We invite you to download
it and to check the QuickStart guides, as well as to browse the
documentation, which has also been properly updated.

We would like to thank the community for its quality feedback and
contributions (check the growing addons catalog), OpenNebula 4.4
Retina wouldn't be nearly as good without your support!

As usual OpenNebula releases are named after a Nebula. The Retina
Nebula (IC 4406) is a planetary nebula near the western border of the
constellation Lupus, the Wolf. It has dust clouds and has the shape of
a torus.

No need for glasses to understand the cloud with Retina ;)

The OpenNebula Team

LINKS
  * Release Notes: http://www.opennebula.org/software:rnotes:rn-rel4.4
  * Download: http://opennebula.org/software:software
  * Documentation: http://opennebula.org/documentation:rel4.4
  * Compatibility guide:
http://opennebula.org/documentation:rel4.4:compatibility
  * Upgrade guide: http://opennebula.org/documentation:rel4.4:upgrade
  * QuickStart guides:
http://opennebula.org/documentation:rel4.4#designing_and_installing_your_cloud_infrastructure
  * Addons catalog: http://opennebula.org/addons:catalog

--
OpenNebula - Flexible Enterprise Cloud Made Simple

--
Constantino Vázquez Blanco, PhD, MSc
Senior Infrastructure Architect at C12G Labs
www.c12g.com | @C12G | es.linkedin.com/in/tinova

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