A Blog of the ZHAW Zurich University of Applied Sciences
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 […]
In the third part of the SmartOS Series (check the first two parts: Intro and Virtualisation) we are going to deep dive into the SmartOS Storage: ZFS. ZFS is a combination of file system and logical volume manager originally introduced in Solaris 10. ZFS includes many features that are key for a Cloud OS such […]
Last week we started a new blog post series on SmartOS. Today we continue in this series and explore in details the virtualisation aspects of SmartOS. SmartOS offers two types of OS virtualisation: the Solaris-inherited container-based virtualisation, i.e. zones, and the hosted virtualisation ported to SmartOS by Joyent, KVM. Containers are a combination of resource […]
In the first part of the Distributed File Systems Series we gave an introduction to Ceph. Today we will explore another file system: GlusterFS. GlusterFS is a clustered network filesystem that uses FUSE and that allows to aggregate different storage devices, bricks in GlusterFS terminology, into a single storage pool. The storage in each brick is formatted […]
Ceilometer Introduction Ceilometer is a monitoring tool for OpenStack cloud environments. In the next OpenStack release called Havana it will take part as a core component. However, Ceilometer is also available for the OpenStack releases Folsom and Grizzly. Currently Ceilometer offers only data of the OpenStack core components and the virtual machines of the cloud. […]
Some time back we introduced a piece of work that we are working on: OpenStack on SmartOS. Today we start a new blog post series to dig into SmartOS and its features. We’ll start with a quick introduction to SmartOS to get everyone started with this platform. SmartOS is an open source live operating system mainly […]
With this post we are going to start a new series on Distributed File Systems. We are going to start with an introduction to a file system that is enjoying a good amount of success: Ceph. Ceph is a distributed parallel fault-tolerant file system that can offer object, block, and file storage from a single cluster. […]
The ICCLab developed a new High Availability solution for OpenStack which relies on DRBD and Pacemaker. OpenStack services are installed on top of a redundant 2 node MySQL database. The 2 node MySQL database stores its data tables on a DRBD device which is distributed on the 2 nodes. OpenStack can be reached via a […]
If automation is required, Vagrant and Puppet seem to be the most adequate tools to implement it. What about automatic installation of High Availability database servers? As part of our Cloud Dependability efforts, the ICCLab works on automatic installation of High Availability systems. One such HA system is a MySQL Server – combined with DRBD, […]
Open Cloud Day 2013 Another successful Open Cloud Day 2013 held on 11-Jun-2013 in Winterthur in cooperation with /ch/open and ICCLab. Over one hundred participants from academies, operators, industries, SMEs and open source organisations attended the plenary, the two parallel sessions and panel discussion. Relevant presentations on OpenStack and CloudStack architectures were discussed by Muharem […]