Linux Virtualization

As a system admin, I need to use additional hard drives for to provide more storage space or to separate system data from user data. This procedure, adding physical block devices to virtualized guests, describes how to add a hard drive on the host to a virtualized guest using VMWare software running Linux as guest.

It is possible to add or remove a SCSI device explicitly, or to re-scan an entire SCSI bus without rebooting a running Linux VM guest. This how to is tested under Vmware Server and Vmware Workstation v6.0 (but should work with older version too). All instructions are tested on RHEL, Fedora, CentOS and Ubuntu Linux guest / hosts operating systems.

{ 41 comments }

You can easily start / stop / pause or take a snapshot from a shell prompt under a Linux / Windows host using vmrun command. This is useful if you do not want to run web interface for starting and/or stopping VMs.

{ 5 comments }

Red Hat paid approximately $107 million in cash for Qumranet, a privately held company. Now, Red Hat positioned to deliver comprehensive, reliable and open virtualization to Linux and Windows servers and desktops.

{ 1 comment }

You can easily list all running Virtual machines from a Linux shell prompt without accessing GUI. This is useful to scripts or to get status for any VM.

{ 0 comments }

Xen is one of the leading Virtualization software. You can use Xen virtualization to implement HA clusters. However, there are few issues you must be aware of while handling failures in a high-availability environment. This article explains configuration options using Xen: The idea of using virtual machines to build high available clusters is not new. […]

{ 2 comments }