A Blog of the ZHAW Zurich University of Applied Sciences
The ICCLab will be present at the Nagios World Conference 2014, which takes place Oct. 13th-16th in St. Paul, MN, USA. Konstantin Benz will speak about the employment of Nagios as a tool to monitor OpenStack clouds. While Nagios is the de facto Open Source standard for monitoring IT systems, the OpenStack community uses Ceilometer […]
As system administrators it is difficult to gather performance data before going productive. Benchmarking tools offer a comfortable way to gather performance data by simulating usage of a productive system. In the OpenStack world we can employ the Mirantis Rally tool to benchmark VM performance of our cloud environment. Rally comes with some predefined benchmarking […]
The famous Nagios open source monitoring system has become a de facto standard in recent years. Unlike commercial monitoring solutions Nagios does not come as a one-size-fits-all monitoring system with thousands of monitoring agents and monitoring functions. Nagios is rather a small, lightweight monitoring system reduced to the bare essential of monitoring: an event management […]
A big issue in cloud computing is knowing when you should upstart more VMs or switch to a more powerful virtual machine in order to process user requests efficiently. Monitoring system utilization is very important for detecting if VM utilization is too high to guarantee stable and high performing IT services. But how can one […]
Why is service quality important? A cloud can be seen as a service which is provided by a cloud provider and consumed by an end user. The cloud provider has the goal to maximize profit by providing cloud services to end users. Usually there are no fixed prices for using cloud services: users have to […]
The Future Internet will consists in more flexible radio access networks which are less centralized than the network infrastructure we have today. Integration of flexible heterogeneous radio access networks in HetNets will allow further social diffusion of the mobile internet. Therefore the IEEE is exploring novel concepts to allow for flexibly centralised radio access networks […]
Telecommunication and IT industries must work much more closely together than they do it nowadays in order to successfully manage the Internet in the future – especially if we consider that the Internet has become mobile. The future challenges for the mobile internet lie in increasing numbers of mobile end users, rapidly growing data traffic […]
Making vehicles intelligent was one of the major topics this Wednesday. Transportation is an influential factor to economic growth, but it faces many challenges in the areas of safety, mobility (traffic jams) and protection of the environment. Building intelligent traffic surveillance systems is a major goal of US Department of Transportation researchers James Pol and […]
If you ever tried to implement High Availability in OpenStack by using Pacemaker, you might be disappointed by Pacemaker’s extremely slow recovery speed. Pacemaker recovers OpenStack at a very low pace – and even worse: it sometimes detects outages when they do not occur. As a result Pacemaker starts unnecessary computationally intensive recovery actions which […]
The “Dependability Modeling Framework” (DMF) becomes famous: Konstantin Benz and Thomas M. Bohnert will present their newest paper about the Dependability Modeling Framework at the First International Workshop on “Cloud Technologies and Energy Efficiency in Mobile Communication Network” (CLEEN) which takes place from September 2-5 in Las Vegas. The ICCLab researchers will show a methodology on […]