virtualization

OpenStack Components

Source:  Compute (Nova)[edit] OpenStack Compute (Nova) is a cloud computing fabric controller, which is the main part of anIaaS system. It is designed to manage and automate pools of computer resources and can work with widely available virtualization technologies, as…

VMware HA setup and availability

vCenter Server can leverage all the solutions for high availability discussed in detail in attached document. The actual solutions used depend on customer requirements. Picture shows the various solutions, their features, and their cost and complexity ratings. The more solutions that…

Top 20 ESXi 5.x issues

Source: ESXi 5.x host experiences a purple diagnostic screen mentioning E1000PollRxRing and E1000DevRx (2059053) Unable to delete the virtual machine snapshot due to locked files (2017072) Installing async drivers on ESXi 5.0, 5.1, and 5.5 (2005205) Collecting diagnostic…

Oracle VM / CentOS network interface setup

After VM installation you need to setup internet connection which might be sometimes tricky. My setup included WiFi interface connected to Def. GW and on laptop VM machine using Bridge interface with CentOS IP manual IP assigned. Once configured you can check end…

MANO – Management and Orchestration

Having the ability to spin up network components in matter of hours instead of months, allows agility, but it can also create chaos! Within virtualisation and NFV the need for proper management has been highlighted from an early stage. It…

Network functions virtualization (NFV)

Network functions virtualization (NFV) is an initiative to virtualize network functions previously carried out by proprietary , dedicated hardware. The concept, which was presented by a group of network service providers at the SDN and OpenFlow World Congress in October…

What are SDN Controllers?

An SDN Controller in a software-defined network (SDN) is the “brains” of the network. It is the strategic control point in the SDN network, relaying information to the switches/routers ‘below’ (via southbound APIs) and the applications and business logic ‘above’…