A Blog of the ZHAW Zurich University of Applied Sciences
We needed to deploy a simple hypervisor on one of our internal systems. This system was disconnected from the Internet for some particular reasons and it was surprisingly difficult to find a suitable bundled linux distribution which provided the features we needed. Ubuntu desktop does not come with KVM, ubuntu server does not have X, […]
We had to investigate the operation of one of our Openstack compute nodes as it was exhibiting some unusual behaviour. We quickly determined that there was some unexpected packet loss and we had reason to believe that this could have been due to the packet processing in the node. Investigating this problem necessitated some deeper exploration […]
Carlo Vallati was a visiting researcher during Aug/Sept 2015. (See here for a short note on his experience visiting). In this post he outlines how cloud computing needs to evolve to meet future requirements. Despite the increasing usage of cloud computing as enabler for a wide number of applications, the next wave of technological evolution – […]
Us ICCLab folk are always interested in new ideas, particularly those that could have a profound impact on computing in general and cloud computing in particular. Consequently, we couldn’t miss out on the opportunity of attending ORConf – a conference loosely centred around open source silicon – which was free and (more or less) just down […]
Carlo Vallati visited the lab in Aug/Sept 2015 – here is a short note he wrote on his time here. I had the pleasure of visiting ICCLab during Aug/Sept 2015 to work on a research proposal. By way of background, I am a postdoctoral researcher with Computer Networking Group (CNG) at the University of Pisa. […]
It is well recognized that GPUs can greatly outperform standard CPUs for certain types of work – typically those which can be decomposed into many basic computations which can be parallelized; matrix operations are the classical example. However, GPUs have evolved primarily in the context of the quite independent video subsystem and even there, the […]
[This post originally appeared on the XiFi blog – ICCLab@ZHAW is a partner in XiFi and is responsible for operating the Zurich node.] As with any open compute systems, security is a serious issue which cannot be taken lightly. XiFi takes security seriously and has regular reviews of security issues which arise during node operations. […]
[Note: This blog post was originally published on the XiFi blog here.] One of the main jobs performed by the Infrastructures in XiFi is to manage quotas: the resources available are not infinite and consequently resource management is necessary. In Openstack this is done through quotas. Here we discuss how we work with them in Openstack. Schlagwörter: […]
Operating an Openstack cloud infrastructure is not a trivial task which requires constant oversight of the use of the cloud resources. Sophisticated monitoring is necessary to ensure that the system continues to operate properly and delivers satisfactory performance to the users. One aspect of monitoring a cloud infrastructure pertains to ensuring that the system exposes […]
Following from our successful and fun outing at the Openstack Summit in Paris (read all about our adventures here, here and here ) at which Vojtech and Srikanta gave talks on live migration and rating, charging and billing respectively (videos here), we’re getting prepped up for the next one in Vancouver. This time out, we’ve thrown our […]