A Blog of the ZHAW Zurich University of Applied Sciences
Description In this initiative we focus on bringing Platform as a Service (PaaS) to the ICCLab testbed, on top of OpenStack. We are investigating and evaluating all the requirements for running various open source PaaS solutions like Cloud Foundry (http://www.cloudfoundry.org), OpenShift (http://www.openshift.org) and Cloudify (http://www.cloudifysource.org) and extend the testbed for monitoring, rating, charging and billing on PaaS level. […]
In his excellent article in Linux Technical Review #04 Jens-Christoph Brendel proposes a new way how to implement High Availability (HA) in current IT architectures. According to Bendel, modern IT architectures continually gain in complexity. This fact makes it difficult to guarantee availability on a certain level. Nevertheless High Availability is not merely a competitional advantage: for many companies keeping availability levels above 99,999 % per year is a matter of existence. Therefore a few systematic steps should help in planning and implementing high availability in your IT environment. This article shows a possible strategy on how to plan High Availability in the Mobile Cloud environment.
SmartOS is an open source type 1 hypervisor platform based on Illumos, a descendant of OpenSolaris, and developed by Joyent. SmartOS is a live operating system, meaning that can be booted via PXE, USB or an ISO image, and runs entirely from memory, leaving the full space on the local disk to be used for virtual machines. This type of architecture makes SmartOS very secure, easy to upgrade and recover. Given its performances and reliability, in the context of the Mobile Cloud Networking project, SmartOS has been chosen to support telco-grade workloads and provide carrier-grade performances.
At the first meeting of the SIG Cloud Computing Security (SIG CCS) under the new lead of Bernhard Tellenbach, member of the board ISSS, the nine participants of the meeting had a lively discussion about the goals of this SIG. Among the goals discussed were ideas such as writing a white paper on a CCS […]
Open Stack’s capabilities to support High Availability are very limited. If a virtual machine crashes, there is no automatic recovery. Clustering software seems a to be a great workaround to allow redundancy and implement High Availability (HA). Pacemaker is a scalable cluster resource manager developed by Clusterlabs. Its advantages are: Support of many different deployment […]
Description Distributed File Systems are file systems that allow access to files from multiple hosts via a computer network, making it possible for multiple users on multiple machines to share files and storage resources. Distributed File Systems are designed to be “transparent” in a number of aspects (e.g.: location, concurrency, failure, replication), i.e. client programs […]
Description Virtualisation is at the core of Cloud Computing and therefore its performance are crucial to be able to deliver a top-of-the-class service. Also, being able to provide the adequate virtualised environment based on the user requirements is key for cloud providers. SmartOS, a descendant of Illumos and OpenSolaris, presents features such as containers and […]
Description A monitoring system especially in a Infrastructure as a Service environment should be considered indispensable and required. Knowing which resources are used by which Virtual Machines (and tenants) is crucial for cloud computing providers as well for their customers. Customers want to be sure they get what they pay for at any time whereas […]