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| Red Hat Enterprise Linux Virtualization - RH184 |
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| What is Virtualization? |  |
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Virtualization is the creation of a virtual (rather than actual) version of something, such as an operating system , a server , a storage device or network resources.
You probably know a little about virtualization if you have ever divided your hard drive into different partitions. A partition is the division of a hard disk drive to create, in effect, two separate hard drives.
In 2005, virtualization software was adopted faster than anyone imagined, including the experts. There are three areas of IT where virtualization is making headroads, network virtualization , storage virtualization and server virtualization : |
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Network virtualization is a method of combining the available resources in a network by splitting up the available bandwidth into channel s, each of which is independent from the others, and each of which can be assigned (or reassigned) to a particular server or device in real time . The idea is that virtualization disguises the true complexity of the network by separating it into manageable parts, much like your partitioned hard drive makes it easier to manage your files. |
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Storage virtualization is the pooling of physical storage from multiple network storage devices into what appears to be a single storage device that is managed from a central console. Storage virtualization is commonly used in storage area networks ( SAN s). |
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Server virtualization is the masking of server resources (including the number and identity of individual physical servers, processors, and operating systems) from server users. The intention is to spare the user from having to understand and manage complicated details of server resources while increasing resource sharing and utilization and maintaining the capacity to expand later. |
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The RH184 Red Hat Enterprise Linux Virtualization course teaches system administrators how to deploy virtualized versions of Red Hat Enterprise Linux (i.e Server Virtualization), thus taking greater advantage of hardware and other resources. |
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Goal |
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A Red Hat Enterprise Linux system administrator who can install, configure, and manage virtual hosts on Red Hat Enterprise Linux 5. |
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Audience |
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Linux system administrators who understand how to install and configure a Red Hat Enterprise Linux system and who wish to learn to install, configure, and manage Red Hat Enterprise Linux 5 in a virtualized environment. |
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Unit 1: Introduction to Virtualization
• What is virtualization?
• Why is virtualization important?
• Types of virtualization
• Basic architecture of Xen virtualization
Unit 2: Basic Paravirtualized Domain Installation
• Preparing for domain installation
• Basic installs using virt-manager
• Configuring domains to automatically start at boot
Unit 3: Virtual Machine Management
• Using generic libvirt-based utilities
• Using native Xen utilities
Unit 4: Advanced Installation and Configuration
• Syntax of Xen domain configuration files
• Virtual Block Devices and types of block storage
• Xen and bridged networking
• Manual and command-line domain installation
Unit 5: Live Migration
• Live migration of Xen paravirtualized domains
• Advanced configuration of xend
• Live migration issues
Unit 6: Troubleshooting
• Differences from a standard environment
• Viewing hypervisor log messages and log files
• Accessing domain virtual block devices
• Common issues
Unit 7: Hardware-assisted Virtualization
• Fully-virtualized vs. paravirtualized domains
• Installing unmodified OSes |
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=> Red Hat exam dates - March, 2010
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Vickey Rihal
My name is Vickey Rihal, wor..
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