A Blog of the ZHAW Zurich University of Applied Sciences
In part 3 of our article series “Dependability Modeling on OpenStack” we have discussed that we should run Chaos Monkey tests on an OpenStack HA installation and then collect data about the impact of the attack. While we did say that we want to collect data about the implemented OpenStack HA architecture, we were not […]
Future trends of Mobile and Internet Communications are revealed at the Conference on Future Internet Communications 2013 in Coimbra, Portugal. The many different speeches and talks show that Cloud Computing could play a major role in future Mobile Communication networks. The first keynote speech of the Conference was held by Alexander Sayenko, researcher at Nokia […]
This page is kept for archiving. Please navigate to our new site: blog.zhaw.ch/splab. Description Financial accounting is a very critical process in the monetization process of any service. In the telecommunication world, these processes have long been documented, used, and standardized. Cloud computing being a relatively new paradigm, is still undergoing a transition phase. Many […]
Many thanks to Davide Panelli and Raffaele Cigni (Solutions Architects and co-founders) from Byte-Code for their visit and talk about a scalable e-commerce platform. Byte-Code is a SME based in Milan, Italy, providing IT consulting services to customers around the world. The company has a strong focus on Open Source solutions and strategic partnerships with leaders […]
Solidna is a project that is funded by the Commission for Technology and Innovation. Solidna will develop a core strategic cloud-based storage product and service area for a major Infrastructure as a Service provider (CloudSigma). The three key innovations that will be developed in Solidna are: 1. Upgraded Compute Storage Performance: this will focus on stability […]
The 4th European Future Internet Summit is coming up and features a talk by Thomas M. Bohnert on Cloud Computing and the Future Internet. This is meanwhile the third invited talk by our lab to this event series. We are therefore particulary proud to have the honor to host the 5th European Future Internet Summit […]
The ICCLab presented on the latest developments (PDF) in the Open Cloud Computing Interface at the Future Internet Assembly in Dublin. The session was organised by Cloud4SOA and the main theme was MultiCloud. In this regard, OCCI figures in many projects striving from this including EGI FedCloud, CompatibleOne and BonFire. In the presentation some future points […]
As kindof advertisement for the new OpenStack Grizzly release we have created an automated single-node OpenStack Grizzly installation which uses Vagrant and Puppet. The automated installation can be downloaded from Github using the following URL: https://github.com/kobe6661/vagrant_grizzly_install.git Please feel free to install it on your machine and test the new release. Schlagwörter: Github, grizzly, installation, openstack, […]
In this part of the Dependability Modeling article series we explain how a test framework on an OpenStack architecture can be established. The test procedure has 4 steps: in a first step, we implement the OpenStack environment following the planned system architecture. In the second step we calculate the probabilities of component outages during a given timeframe (e. g. 1 year). Then we start a Chaos Monkey script which “attacks” (randomly disables) the components of the system environment using the calculated probabilities as a base for the attack. As a last step we measure the impact of the Chaos Monkey attack according to the table of failure impact sizes we created in part 2. The impact of the attack should be stored as dataset in a database. Steps 1-4 form one test run. Multiple test runs can be performed on multiple architectures to create a empirical data which allows us to rate the different OpenStack architectures according to their availability.
There is always room to test different HA technologies in a simulated VM environment. At ICCLab we have created such a DRBD test environment for PostgreSQL databases. This environment is now available on Github. The test environment installation uses Vagrant as tool to install VMs, Virtualbox as VM runtime environment and Puppet as VM configurator. […]