How to: Install and Setup XEN Virtualization Software on CentOS Linux 5

Posted on in Categories CentOS, High performance computing, Howto, Linux, Linux Virtualization, RedHat/Fedora Linux, xen last updated October 18, 2007

Xen is a free open source software virtual machine monitor for Intel / PowerPC architectures. It is software that runs on a host operating system and allows several guest operating systems to be run on top of the host on the same computer hardware at the same time (just like VMWare software). Luckily Installing and managing XEN is quite easy under CentOS 5 Linux.

Download of the day: Solaris 10 update 8/07 CD / DVD ISO

Posted on in Categories Download of the day, Solaris, UNIX last updated September 12, 2007

Solaris 10 update 8/07 has been released and available for download. From the announcement page:
The latest update of the Solaris OS helps customers alleviate common enterprise problems such as virtualization, resource management, and system performance. Solaris delivers built-in investment protection and new technologies that are even better suited to data intensive environments where price and performance are driving factors:

New updated features

=> Solaris Containers for Linux Applications and integrated support for Logical Domains
=> Update to the performance-optimized and cost-effective PostgreSQL open-source database software.
=> Ability to run multiple independent network stacks on one system
=> Networking and DTrace technology enhancements

Best of all, it’s free to download and use. The only thing customers pay for are the support and services, which range in scope and price to suit the needs of individual developers and companies of all sizes.

Download Sun Solaris 10 UNIX CD / DVD ISO

=> Visit official site to download Solaris ISO images.

Howto: Create Shared Storage on Suse Linux using OCFS2 and Xen Virtualization

Posted on in Categories File system, High performance computing, Howto, Linux, Networking, Suse Linux, Sys admin, Tips last updated August 21, 2007

Arun Singh shows us how to create shared storage on SUSE Linux Enterprise Server 10 using OCFS2 (Oracle Cluster File System v2 for shared storage) and Xen Virtualization technology. Enterprise grade shared storage can cost you lots of money but here no real expensive shared storage used. The information provided here works with real shared storage as well:

This paper is to help you to understand the steps involved in creating shared storage without using expensive shared storage. Using this information you can create shared storage used by all xen guest OS and Host, avoiding copying of files between guest OS’s. Hope you will find this paper useful.

You can easily port instructions to Redhat or any other Linux distro without a problem. You can also use Redhat’s Global File System (GFS) too. We often use Fibre Channel or iSCSI, devices for GFS shared storage.

Creating shared storage on SUSE Linux Enterprise Server 10 using Xen and OCFS2 [novell.com]

On a related note there is also article about creating a highly available VMware Server environment on a Debian Etch system.

Download OpenSuse Linux 10.2

Posted on in Categories Download of the day, Suse Linux last updated December 7, 2006
Download OpenSuse

Update: Download latest OpenSuse Linux version 10.3.

I know most of us tired of answering questions about the Microsoft-Novell deal.. but OpenSuse Linux 10.2 is here….

openSUSE is a community project, sponsored by Novell, to develop and maintain SUSE Linux components (such as YaST).

Some of the Good application included:
* AppArmor: gives certain applications rights based on how they run and interact with the environment.
* YaST: a system management application
* Xen: virtualization software
* The KDE and GNOME desktop environments and many more

It’s available for download on http://download.openSUSE.org in x86, x86-64, and ppc versions – via ftp from our mirrors and bittorrent.

Read more at OpenSuse mailing list