Virtualization For Dummies Cheat Sheet To help you get a better understanding and expand your knowledge of virtualization, get to know these useful terms and how they apply to virtualization and its process: Bare metal: Virtualized servers in which the virtualization software is installed directly on the machine rather than on an operating system. Because it installs on the machine, it is said to reside on “bare metal.” Client virtualization: Using virtualization to enable a client device (like a laptop) to support isolated operating environments. Client virtualization is often used to move workloads into isolated environments to reduce system administration requirements. P2V: Shorthand for “physical to virtual.” Server virtualization: Running virtualization software on server machines in order to host multiple operating system environments on a single piece of hardware. Storage virtualization: Using shared storage located on individual servers so that multiple servers can share a single storage device.
The Industrial Ethernet Book | Knowledge | Technical Articles | Dual-homing: resilience up to the network's edge In Ethernet LANs, dual-homing is a network topology that adds reliability by allowing a device to be connected to the network by way of two independent connection points (points of attachment). One access point provides the operating connection while the other implements a standby or back-up connection activated in the event of operating connection failure. A dual-homing switch, with two attachments into the network, offers two independent media paths and two upstream switch connections. Loss of the Link signal on the operating port connected upstream indicates a fault in that path, and traffic is quickly moved to the standby connection so accomplishing fault recovery. For industrial applications, the most common redundant Ethernet LAN topology is the ring. Although a ring structure will recover from a media break or the failure of a switch, the failure of a switch in the ring takes down the nodes connected into that switch. Some LAN designs use two rings for greater redundancy.
Digital Cameras How to Install VMware Workstation and Create a Virtual Machine on Your PC Edit Article Two Parts:Install VMware WorkstationAdd Virtual MachinesCommunity Q&A VMware Workstation is a computer emulator. It allows you to create virtual machines in which you can install operating systems as if they were physical machines. You might want to emulate an operating system because you want to run a program that isn't compatible with the host operating system (the operating system that you are installing VMware Workstation on), or because you want to test malware without putting an actual computer at risk. This article shows you how to install VMware Workstation 11 and create or open a virtual machine. Steps Part 1 Install VMware Workstation Download the Setup File <img alt="Image titled Download 10.png" src=" width="728" height="312" class="whcdn">3Download VMware Workstation. Set Up a Typical VMware Workstation Installation Set Up a Custom VMware Workstation Installation (advanced) Part 2 Tips
High-Temperature Electronics Volume 46 – April 2012 Download this article in PDF format. (957 KB) High-Temperature Electronics Pose Design and Reliability Challenges By Jeff Watson and Gustavo Castro Introduction Many industries are calling for electronics that can operate reliably in harsh environments, including extremely high temperatures. High-Temperature ApplicationsThe oldest, and currently largest, user of high-temperature electronics (>150°C) is the downhole oil and gas industry (Figure 1). Figure 1. In the past, drilling operations have maxed out at temperatures of 150°C to 175°C, but declining reserves of easily accessible natural resources coupled with advances in technology have motivated the industry to drill deeper, as well as in regions of the world with a higher geothermal gradient. The applications for high-temperature electronics in the downhole industry can be quite complex. Figure 2. Figure 3. The automotive industry provides another emerging application for use of high-temperature electronics.
Domain Name System The Domain Name System (DNS) is a hierarchical distributed naming system for computers, services, or any resource connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities. Most prominently, it translates domain names, which can be easily memorized by humans, to the numerical IP addresses needed for the purpose of computer services and devices worldwide. The Domain Name System is an essential component of the functionality of most Internet services because it is the Internet's primary directory service. The Domain Name System distributes the responsibility of assigning domain names and mapping those names to IP addresses by designating authoritative name servers for each domain. The Domain Name System also specifies the technical functionality of the database service which is at its core. Function History Structure  Domain name space Domain name syntax Name servers
Protocols New User’s Guide to Configuring VMware ESX Networking via CLI 23 June 2009 A lot of the content on this site is oriented toward VMware ESX/ESXi users who have a pretty fair amount of experience. As I was working with some customers today, though, I realized that there really isn’t much content on this site for new users. That’s about to change. As the first in a series of posts, here’s some new user information on creating vSwitches and port groups in VMware ESX using the command-line interface (CLI). For new users who are seeking a thorough explanation of how VMware ESX networking functions, I’ll recommend a series of articles by Ken Cline titled The Great vSwitch Debate. Before I get started it’s important to understand that, for the most part, the information in this article applies only to VMware ESX. The majority of all the networking configuration you will need to perform on VMware ESX boils down to just a couple commands: Configuring VMware ESX networking boils down to a couple basic tasks: Creating, Configuring, and Deleting vSwitches