A Blog of the ZHAW Zurich University of Applied Sciences
On November 4th 2015 Konstantin Benz, researcher at ICCLab, presented an adaptive cloud application in the “Complex Adaptive Systems” conference in San Jose, California. “Complex Adaptive Systems” is a conference organized by Missouri University of Science and Technology (MST) which takes place every year and which includes topics like machine learning, data analytics and smart […]
“The autoscaling cloud monitoring system that requires no manual reconfiguration” “Nagios OS autoconfigurator” (N_O_conf) is a cloud monitoring system that automatically adapts its monitoring behavior to the current user-initiated VM infrastructure. N_O_conf works by installing a cloud environment change listener daemon which is repeatedly polling the OpenStack API for changes in the VM infrastructure. As […]
“Measure and benchmark reliability of your OpenStack virtual machines.” “VM Reliability Tester” is a software that tests performance and reliability of virtual machines that are hosted in an OpenStack cloud platform. It evaluates the failure rate of VMs by performing a stress test on them. VM Reliability Tester installs OpenStack virtual machines, uploads a test […]
There are many different technologies which can increase availability of a cloud infrastructure. In our newest Techcouting paper we evaluate several HA technologies in order to define a HA architecture for an OpenStack deployment which is part of the XiFi project. HA technologies can be grouped in the following classes: Resource monitors that check if […]
After having completed part 1 of our series about reliability analysis, we now start with our first reliability measurement experiment. According to reliabili theory there are three things we could measure: survival probability, hazard rate and failure rate. The last one is the easiest one in practice. Therefore we design an experiment to measure the […]
Overview Cloud computing means: On-demand self service Virtualization Elastic resource provisioning Cloud computing service is comparable to public utility services like gas, telephone or water supply. Economical value of cloud computing service is determined by reliability, availability and maintainability (RAM) characteristics. Availability impacts the value of cloud computing as it is perceived by end users. […]
How reliable are your OpenStack VMs? How many outages do you expect to occur during 8 months of operation? Do your VMs crash regularily, randomly or do VM outages increase over time? These questions can only be answered if we perform a reliability analysis of the virtual machines that we manage. In this small guide […]
There are many tools available which can be used to monitor operation of the Opentack infrastructure, but as OpenStack user you might not be interested in monitoring OpenStack itself. Your primary interest should be the operation of the VMs that are hosted on OpenStack. Nagios OpenStack Installer is a tool for exactly that purpose: it […]
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 […]
We are conducting research in order to find out which features of the XIFI platform are most important to end users. The results will be used in order to improve the platform. If you are an application developer interested in XIFI, please feel free to participate in the survey which can be found following this […]