A Blog of the ZHAW Zurich University of Applied Sciences
What is it all about? We’re using a bunch of VMs to do numerical dosimetry and are very satisfied with the service and performance we get. Here I try to give some background on our work. Assume yourself sitting in the dentists chair for an x-ray image of your teeth. How much radiation will miss […]
The icclab participated on the Nagios World Conference 2014 which took place Oct 13th-16th, 2014 in St. Paul, MN, USA. Icclab’s Cloud High Availability-initiative leader Konstantin Benz presented an approach on how to use Nagios Core to monitor utilization of OpenStack resources. The key point he mentioned was that Nagios has to be reconfigured elastically […]
In our previous work we presented the performance of live migration in Openstack Icehouse using various types of VM flavors, its memory load and also examined how it performs in network and CPU loaded environment (see our previous posts –performance of live migration, performance of block live migration, performance of both under varying cpu and […]
Hello World! Valon Mamudi started with his apprenticeship 2008 at Klein Computer System AG, after four years apprenticeship and two years work as an System Engineer at the same Company, he decided to change his role and take on new challenges, consequently he started as an ICT Service Engineer at ZHAW. He is now responsible for […]
OpenStack User Group – Meeting, 16 Oct. at ICCLab Winterthur Co-located with docker CH meeting Goals: Analysis of OpenStack Solutions, deployments and container solutions. Hosting: ZHAW Zurich University of Applied Science Technikumstrasse 9, 8401 Winterthur Data: 16.10.2013 – 18:00 – 21:00 Agenda start: 18.00 – ROOM TL203 (Chemistry Building) (order of speakers may […]
For our SDK4SDN work we made a comparison between two SDN controllers: Ryu and Opendaylight. We focused on the Northbound APIs of the controllers and we compared the capabilities and ease of use of their respective REST APIs. Both controllers support REST, which is based on a mix of HTTP, JSON and XML. In Ryu a WSGI web server […]
In one of our projects we need to understand the energy consumption of our servers. Our initial work in this direction involved collecting energy consumption data using Kwapi and storing it in Ceilometer for further study. The data stored in Ceilometer is valuable; however, it is insufficient to really understand energy consumption in detail. Consequently, […]
Previously, we analyzed the performance of virtual machine (VM) live migration in different scenarios under Openstack Icehouse. Until now, all our experiments were performed on essentially unloaded servers – clearly, this means that the results are not so widely applicable. Here, we analyze how the addition of load to the physical hosts and the network […]
We continue our recent work regarding an analysis of the performance of live migration in Openstack Icehouse. Our previous results focused on block live migration in Openstack, without shared storage configured between computing nodes. In this post we focus on the performance of live migration in the system with a shared file system configured, compare […]