StorPool: A New Storage System Integrated with OpenNebula

Storage has always been the single most complex and expensive asset in any company that builds clouds, provides cloud services or manage its own infrastructure. Companies are in constant search of reliable, scalable, simple and affordable storage alternatives.

We are happy to announce that we have a new storage system which is now integrated and available to OpenNebula users: StorPool.

StorPool is block-level, distributed storage software. It runs on standard servers and builds a fast, scalable and reliable shared storage system out of these servers. StorPool is incredibly flexible and can be deployed in both converged setups (on compute nodes, alongside VMs and applications) or on separate storage-only servers.

StorPool was designed from scratch to deliver the fastest and most-efficient storage solution possible. It eliminates the need of traditional SANs and all-flash arrays (AFA). Because of it’s performance, flexibility and unmatched efficiency (taking minimal resources on the servers), it is preferred choice to other storage software (like Ceph), when it comes to building high-performance block-storage systems.

The integration between the two systems is performed as a new datastore driver in OpenNebula. OpenNebula persistent and non-persistent images (virtual disks) are stored in a StorPool cluster with the expected high level of reliability and performance. OpenNebula controls and monitors the StorPool cluster. For example, when you create a VM in OpenNebula, it instruct StorPool to create a new volume for the VM, which may be based on a ONE template. When a ONE template is being imported it goes directly into the StorPool image data store.StorPool data storage system

With StorPool, your OpenNebula cloud gets exceptional storage bandwidth, IOPS and latency, enabling you to provision many more VMs per host. Combining both products allows for seamless scalability in capacity and performance as well as increased reliability.

By deploying StorPool with OpenNebula companies get storage infrastructure that is:

Reliable – with no single points of failure, shared storage with solid data protection
Fast and scalable – having seamless scalability in capacity and performance
Intelligent and flexible – allowing online expansion, online changes, self-healing, in-service upgrades
Simple – all the ways – to buy, deploy, operate and expand, utilizing standard servers, drives and networking
Affordable – one of the most affordable alternatives on the market

To learm more about StorPool or get a free test version of the product visit: or contact them at



OpenNebula at TeleData

TeleData GmbH

TeleData is a regional internet service provider founded in 1997 with headquarters located in the City of Friedrichshafen in the South of Germany. The company offers a wide range in telecommunication solutions and builds its own fiber optic internet Backbone network. One of the core values of the company is to be a premium full service provider which generates its Internet, Webhosting, Telephony, TV, Fiber Access and Cloud services within its own three datacenters and is operated by a young team of specialists.

TeleData runs several OpenNebula installations since late 2011. Different cloud stacks such as OpenStack, Proxmox, Eucalyptus, CloudStack among others have been tested within its laboratory premises. Not to mention OpenNebula,which is quite impressive.

In 2013 TeleData’s Infrastructure was built completely from scratch – with the best breed technologies as a Service (IaaS) platform. In the case of OpenNebula it turned out to be the most mature and proven Cloud-Stack available – lacking of unnecessary complexity or unneeded overhead.

In the last two years TeleData has been developing a regional IaaS-Cloud spanning across three Datacenters offering virtual Servers and virtual Datacenters for its customers.

OpenNebula is today’s central computing platform at TeleData. Services like E-Mail, DNS and Webhosting were backed (supported) by the TeleData Cloud – with OpenNebula as main structure for thousands of customers. The Automation of all cloud operations is established with Puppet and The Foreman.

HP Servers were chosen as Hardware for the OpenNebula Clusters, Cisco 10 Gigabit Networking and NetApp Storage. The virtualization Hosts are operated using Debian GNU/Linux, Linux QEMU/KVM and OpenVSwitch – every Server and/or virtual Datacenter has its own 802.1Q VLAN and an official IP-Subnet including a strong internet uplink, provided by our peerings at DE-CIX and AMS-IX.

OpenNebula worked just right out of the box – there were only a few simple modifications necessary to reach the best performance and reliability levels. For example, a “Host-Failover Hook” was created to ensure the proper functioning of STONITH/Fencing in case of a hosting error. The “live-migration” Drivers were modified for optimal performance. Another example is the optimization of the OpenVSwitch – for maximum security and performance (VLAN isolation, monitoring).

The next step will be a major change in the storage level – the plan is to remove the NetApp Storage Systems and replace them with Ceph, a redundant Object Storage. The integration of OpenNebula and Ceph is working according to plan in TeleData´s Testlab.

For TeleData, the sun is shining through the “Clouds” with OpenNebula.


New Contextualization Packages

A new version of OpenNebula context packages is out. Don’t be fooled by its version number. Even if it’s 4.14 is compatible with previous versions. There’s only one feature that needs OpenNebula 4.14 support.

In this release we a couple of contributions:

The other nice feature that you can use is that you can add start scripts without registering a file. To use this feature there are two new variables:

  • START_SCRIPT: the commands to run when the VM starts
    START_SCRIPT_BASE64: the same as START_SCRIPT but in base64
  • When context finds one of these variables it creates a new file that contains its value. Sets the executable bit, changes the directory to the context CD mount point and starts it. As it is executed by the context scripts all the variables in the context section are set in the environment.

The script does not need to be shell script, you can add a shebang and execute python, ruby or even binaries! (not recommended).

Some examples:

START_SCRIPT="yum update; yum install epel-release"
yum install nginx
systemctl start nginx
systemctl enable nginx
curl --data IP=$NIC[IP, NETWORK=\"public net\"] http://myserver/i_am_alive
START_SCRIPT="#!/usr/bin/env ruby

require 'open-uri'

open('http://myserver/configuration') do |s|
  conf =

The other feature that requires the next version of OpenNebula is a new command to make the usage of OpenNebula gate easier. But we will talk about this in other post.

Go and download the new version while it’s fresh!

OpenNebula + Openstack + Cloudstack = Open Cloud Day Bern


This gigant workshop, featuring OpenNebula, Openstack and Cloudstack technologies is happening this Tuesday, 16th of June 2015 in Bern at the Open Cloud Day.

The first time in Switzerland (and maybe world wide) for a friendly meeting of cloud provider experts.


Participants will learn what are the possibilities and advantages of every system and have the opportunity to discuss with the experts in the evening.




Nico Schottelius, CEO of ungleich GmbH (Linux infrastructure & application hosting company based in Switzerland) will give an advanced workshop on cloud management with OpenNebula for DevOps.

Schottelius, the author of the innovative configuration management system “cdist”, is a judge of the Open Source Awards in Switzerland.

Schottelius also teaches computer science at the university of applied sciences ZHAW.

vOneCloud 1.6 Released! Ease vSphere Provisioning

We want you to know that OpenNebula Systems has just announced the availability of vOneCloud version 1.6.

This new release of the appliance, tailored to ease the provisioning of resources from vSphere based infrastructures, comes packed with exciting new features.

  • In vOneCloud 1.6 is now possible to define virtual machine capacity, in terms of CPU and Memory presented to the guest OS, changing this value from the vCenter Template at the time of cloning a new Virtual Machine.
  • Along this line, it is also possible to resize the capacity of a Virtual Machine after deployment.
  • Moreover, it is also possible to confine vOneCloud users on a particular vCenter Resource Pool, making it possible to enforce company security policies by reducing the rights of the needed credentials by the appliance and also offering to vOneCloud users a subset of all the available hardware resources controlled by vCenter.
  • In order to facilitate the customization of Virtual Machines, in terms of configuring software packages and perform any generic administration task at guest OS boot time, vOneCloud introduces the ability to run any script at boot time, using a new set of contextualization packages.
  • Improvements are also offered in the VNC connection capabilities, to accommodate foreign keyboards.

The above features and components add to the already present ability to expose a multi-tenant cloud-like provisioning layer through the use of virtual data centers, self-service portal, or hybrid cloud computing to connect in-house vCenter infrastructures with public clouds. vOneCloud seamlessly integrates with running vCenter virtualised infrastructures, leveraging advanced features such as vMotion, HA or DRS scheduling provided by the VMware vSphere product family.

vOneCloud is zero intrusive (although it fully manages the life cycle of VMs), try it out without the need to commit to it. If you happen (as strange at that may be!) to don’t like it  you can just remove the appliance.

Relevant Links

NodeWeaver to Sponsor OpenNebulaConf 2015

OpenNebula Conf 2015 is getting closer and we would like to keep sharing with you the companies/projects that are sponsoring this year’s conference. Now it is time for NodeWeaver, as part of our Gold Sponsors.

nodeweaver-logo (1)
If you want to participate in OpenNebula Conf and meet NodeWeaver and other OpenNebula users, remember that you are still in time for getting a good price deal for tickets. Also, if your company is interested in sponsoring OpenNebulaConf 2015 there are still slots.

About NodeWeaver

NodeWeaver is a new kind of hyperconverged appliance-bringing together storage, networking and virtualization, completely self-managing and designed to be simple to operate and exceptionally reliable. We have chosen from the start to take advantage of the OpenNebula orchestrator as our main component, a choice driven by its simplicity, reliability and its open design and development process. Our choice has been demonstrated, over and over, an excellent one: OpenNebula simplicity has been extremely appreciated by our customers, and the modularity of its architecture substantially reduced the complexity of adapting and extending it. In three years of experimentation, and several mission critical deployments, OpenNebula has exceeded all our expectations.


No Limit Network to Sponsor OpenNebulaConf 2015

Last week we announced the first Sponsor for OpenNebula Conf 2015. Now it is time for No Limit Network, as part of our Silver Sponsors.

logo-140-75-retinaIf you want to participate in OpenNebula Conf and meet No Limit Network and other OpenNebula users, remember that you are still in time for getting a good price deal for tickets. Also, if your company is interested in sponsoring OpenNebulaConf 2015 there are still slots.

About No Limit Network

Created in 2013, located in Clermont-Ferrand, France, No Limit Network has already proved its reliability. Our business is focused on your needs and demands. The best way to do so, is to build with you a long term collaboration.

We deliver the OpenNebula platform and added our own marketplace to provide customized and personalized applications. We can ensure you to adapt your applications to OneFlow system. We can provide fully managed and monitored solutions from simple to more complex workflow. We are IT experts as well, so we are able to help and advise on your settings improvements or application development. Member of RIPE NCC, independant, we are providing a different and customer-centric Cloud vision.

Nicolas Bélan — CEO – No Limit Network


OpenNebula Newsletter – May 2015

Check out what kept us busy this May. This Newsletter contains the most worthy developments and events of the OpenNebula project and the community during this last month, and the plans for the upcoming months.

We are proud to announce that OpenNebula Systems, the company behind the OpenNebula Project and vOneCloud, has established a new subsidiary to oversee all business operations and to support the OpenNebula community in the U.S. This is excellent news for the OpenNebula Project! Read the details in the OpenNebula Systems press release.


Winter is over, Spring is here, and everything is blossoming. And yes, that includes OpenNebula features! The team is busily working on the upcoming 4.14 OpenNebula release, as usual following the roadmap driven by its users, via feature request or even the Fund a Feature program.
OpenNebula 4.14 will add an exciting new snapshot management feature, that will let perform disk snapshots and maintain a history of them. The initial support would be only for Ceph, as it is our storage backend of choice (have you read our reference architecture? now is the chance!)

Sunstone is undergoing a major refactor, since its structure has been left untouched for far too many releases. We are proud to say that now all the components of OpenNebula have clean code and best programming practices! Of course everything has room for improvement, and we did our best in this release for your favourite cloud web interface. Adding new features and polishing the interface is going to be easier than ever now, so expect a big boost in Sunstone for future releases.

A long awaited featured, widely demanded by users, was related to datastore maintenance. Migrating running VMs from one system datastore to another, in order to take offline one datastore or simply to free some space from it will be possible in the upcoming 4.14 release. Rejoice cloud admins!

Image resizing has also been in our backlog for too long, and finally we found the needed resources to develop it. We think this is a very important feature for OpenNebula users and admins, try it out and let us know if this is what you were looking for.

4.14 will have a plethora of new features and improvements, like an improved fault management with the inclusion of new VM state transitions (no VM left behind), improvements in the network context management (more flexibility at the time and place of defining network attributes, … . Make sure you try out the beta release, due in a few weeks.


We love our community. Seriously. Keep it up guys. Want a taste? Check this excellent contribution, detailing the needed steps to create an OpenNebula marketplace image. And when we say detailing, we really mean it. Great post! Also, a great contribution itself to the marketplace! A VyOS image for OpenNebula to achieve complex network topologies for your VM services.

We are very excited about uCloud, Unity Technologies new OpenNebula cloud. uCloud is a state of the art cloud, with authentication and network federation linking three different datacenters based on SoftLayer bare metal, configured for cloud bursting and prepared to scale to support thousands and even millions of users as Unity Technology requires. Read more details on this post we prepared to show the world what can be achieved in little time with OpenNebula, and also in the post the gentle folks at unity have prepared, called Agnostic Cloud Management (we like!).


Fun is always welcome in our community. The team choked in laughter after seeing this tweet from Carlo Daffara (kudos to your friends).

The Barcelona OpenNebula user group is very active, spreading the ONE word this month in the Suoders event, with interesting talks around the technology.

Serious matters are welcome as well. Our Terradue partners gave this talk at the EFIConf15 on Hybrid Cloud Strategy. Worth going through the slides.

What is the best way to move out of Amazon Web Services (AWS) or other public cloud services?

Well, according to the answer is OpenNebula. Learn the reasons and the approach taken by them in this article.

The community is always contributing back. This month, it provided for instance gems to make OpenNebula a provider for Vagrant, and daemon for getting monitoring data from OpenNebula’s XML-RPC API and storing them to InfluxDB. Also, a very interesting Elastic load-balancing & high-availablitY Wired network Architecture. It comes packed with features, so if you are looking for complex network set ups is a must read. Moreover, a new version of knife plugin for OpenNebula is also available thanks to Megam.

A beta release of CLUES (energy management system for Cloud infrastructures) that supports OpenNebula was also released this month.


The upcoming third edition of the OpenNebulaConf will be held in Barcelona this October 2015.You are still in time until the 15 of June for getting a good price deal for tickets.

Also, your company may be interested in the sponsorship opportunities for OpenNebulaConf 2015.We already have a number of sponsors, so if you are interested let us know as soon as possible. As platinum sponsors, we have PTisp; as gold sponsors ungleich (check out the post announcing it) and XenServer; and as silver sponsors Runtastic and no-limit-network.

The agenda for the OpenNebulaConf 2015 is available, check out the high quality speakers. The agenda includes two keynote speakers:

We are organizing a number of Cloud Technology Day events in Boston and Chicago at the end of June, and in Paris on the 8th of July. If you are interested in helping us organize a Cloud TechDay in your area, go ahead and contact us.
During the following months, members of the OpenNebula team will be speaking in the following events:

It is worth highlighting that the OpneNebulaConf sponsors ungleich will help spreading the word in Bern, Switzerland, next 16th of June in the OpenCloud Day.

If you are interested in receiving OpenNebula training, check the schedule for 2015 public classes at OpenNebula Headquarters. Next public OpenNebula training will take place next 16th of June in Madrid. Please contact us if your would like to request training near you.

Remember that you can see slides and resources from past events in our Events page. We have also created a Slideshare account where you can see the slides from some of our recent presentations.

OpenNebula Conf 2015: Agenda Available

Dear community,

The OpenNebula Project is proud to announce the final line-up of speakers for the third OpenNebula Conference to be held in Barcelona from the 20 to the 22 of October. We had a big response to the call for proposals. Thanks for submitting a talk proposal!. Although all submissions were of very high quality and merit, only a small amount of abstracts will be presented. Unlike previous editions, we will have a single track with 20-minutes talks, to keep all the audience focused and interested. We have given our very best to get the perfect balance of topics.

Now everything is ready, the agenda includes two keynote speakers:

We have even more cool speakers from CentOS, Citrix, Redhat, Fermilab, LRZ, Cloudweavers… please check the agenda for the whole list of speakers.

Besides its amazing talks, there are multiple goodies packed with the OpenNebulaConf registration. Lightning talks, a hands-on tutorial, and meeting OpenNebula users and developers are some of the treats you are in for if you are attending the conference. You are still in time for getting a good price deal for tickets. There is a 40% discount until June 15th. Also, your company may be interested in the sponsorship opportunities for OpenNebulaConf 2015, there are still some sponsorship slots available.

We are looking forward to welcoming you personally in Barcelona!.

We would like to take this opportunity to thank our Platinum Sponsor PTispGold Sponsors ungleich and Xen Server; and Silver Sponsors Runtastic and No Limit Network

Upcoming Cloud TechDays in Chicago, Boston and Paris

Besides our annual OpenNebula Conference, we are organizing Cloud Technology Day events in multiple cities globally in the next two months.

The OpenNebula TechDays are full day events to learn about OpenNebula with a hands-on cloud installation and operation workshop, and presentations from community members and users that will focus on:

  • Sharing cloud use cases and deployment experiences
  • Introducing new integrations and ecosystem developments
  • Describing other related cloud open-source projects and tools

The first OpenNebula Cloud Tech Day will be held on the 24th of June in Chicago, IL, at the Illinois Institute of Technology and with the collaboration of FermiLab.



The second OpenNebula Cloud Tech Day will be held on the 29th of June in Cambridge, MA, at the Microsoft New England R&D Center, organized by the HPC & GPU Supercomputing Group of Boston and sponsored by Microway.




The third OpenNebula Cloud Tech Day will be held on the 8th of July in Paris, France, organized by IPPON Hosting.



If you want to actively participate in any of these events, share your experience with OpenNebula or describe other related cloud open-source projects and tools, send us your talk proposal at

The number of seats is limited to ensure there is plenty of opportunity for everyone to interact. We encourage everyone to register as early as possible.

For more information on past events, please visit the Cloud Technology Days page

We hope to see you there! and a big thanks to the organizers of these events.

Please send us an email at if you are interested in hosting a TechDays event.

We look forward to your answers