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Openfiler

Openfiler 2.3 Active/Passive Cluster With Offsite Replication Node

Post date: February 10, 2011, 14:02 Category: Installing Views: 4209 Comments
Tutorial quote: Openfiler is a Linux based NAS/SAN application which can deliver storage over nfs/smb/iscsi and ftp. It has a web interface over that you can control these services. The cluster we build will consist of two nodes replicating each other and taking over services and storage in case of emergency. Furthermore we have an Offsite Replication Server, which ideally stands in a physically different position and replicates the configurations/storage from which ever node is active. In case of emergency this Offsite Replication Server can be used to restore the cluster and to deliver the services.
Debian

Xen from Backports on Debian Sarge

Post date: August 12, 2006, 18:08 Category: Software Views: 2722 Comments
Tutorial quote: There is a great howto about installing Xen on Debian Unstable. It is really easy to do and it runs fine. Nevertheless, on production servers, that's not an optimal solution. Debian Unstable has too many updates and things change too often. On production machines, a Xen host system should be stable, secure and should not need much attention. That is where Sarge comes in. If you pull the Xen packages from backports and install them on Debian stable you've got the best of both worlds. Let's do so!
CentOS

The Perfect Setup - OpenVZ with CentOS 4.4

Post date: November 12, 2006, 21:11 Category: System Views: 4877 Comments
Tutorial quote: This article describes how to prepare a CentOS 4.4 server for OpenVZ virtual machines. With OpenVZ you can create multiple Virtual Private Servers (VPS) on the same hardware, similar to Xen and the Linux Vserver project. OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers.
Proxmox+VE

KVM & OpenVZ Virtualization And Cloud Computing With Proxmox VE

Post date: February 17, 2009, 12:02 Category: Installing Views: 19012 Comments
Tutorial quote: Proxmox VE (virtual environment) is a distribution based on Debian Etch (x86_64); it provides an OpenSource virtualization platform for running virtual machines (OpenVZ and KVM) and comes with a powerful, web-based control panel (it includes a web-based graphical console that you can use to connect to the virtual machines). With Proxmox VE, you can even create a cluster of virtualization hosts and create/control virtual machines on remote hosts from the control panel. Proxmox VE also supports live migration of virtual machines from one host to the other. This guide shows how you can use Proxmox VE to control KVM and OpenVZ virtual machines and how to create a small computing cloud with it.
Ubuntu

Installing Xen 3.3 With Kernel 2.6.27 On Ubuntu 8.10 (x86_64)

Post date: February 24, 2009, 12:02 Category: Installing Views: 3101 Comments
Tutorial quote: This tutorial shows how you can install Xen 3.3 on an Ubuntu 8.10 host (dom0). Xen 3.3 is available from the Ubuntu 8.10 repositories, but the Ubuntu 8.10 kernels (2.6.27-x) are domU kernels, i.e., they work for Xen guests (domU), but not for the host (dom0). Therefore we need to build our own dom0 kernel. This guide explains how to do this with a 2.6.27 kernel.
Linux

How to configure a low-cost load-balanced LAMP cluster

Post date: April 25, 2006, 11:04 Category: Network Views: 5982 Comments
Tutorial quote: The ubiquitous Linux, Apache, MySQL, and PHP/Perl/Python (LAMP) combination powers many interactive Web sites and projects. It's not at all unusual for demand to exceed the capacity of a single LAMP-powered server over time. You can take load off by moving your database to a second server, but when demand exceeds a two-server solution, it's time to think cluster.
Linux

Xen: How to Convert An Image-Based Guest To An LVM-Based Guest

Post date: April 19, 2009, 10:04 Category: Miscellaneous Views: 3137 Comments
Tutorial quote: This short article explains how you can move/convert a Xen guest that uses disk images to LVM volumes. Virtual machines that use disk images are very slow and heavy on disk IO, therefore it is often better to use LVM. Also, LVM-based guests are easier to back up (using LVM snapshots).
Linux

Building a Linux Cluster, Part 1

Post date: April 18, 2005, 03:04 Category: Network Views: 2383 Comments
Tutorial quote: Linux clusters have escaped. As the general popularity of the Linux operating system increases, more complex solutions built with it are becoming increasingly common in the "traditional" (more conservative) IT world. Linux computer clusters, whose provenance was originally universities and research institutions such as the U.S. National Laboratories, are showing up in increasing numbers as high-performance computing solutions within such areas as oil and gas exploration, computer-aided engineering, visualization, and software development. Linux clusters providing highly-available web, mail, and other infrastructure services are also increasingly common. If past computing history is any indicator of future trends, widespread use of Linux clusters in the mainstream IT world cannot be far behind.
Ubuntu

Setting up Xen 3.0 from binaries in Ubuntu 6.06 LTS (Dapper Drake)

Post date: June 16, 2006, 07:06 Category: Software Views: 3267 Comments
Tutorial quote: This particular way of installing and configuring Xen is just the path of least resistance for me. There are many other possible ways of configuring the system.
Debian

Debian Sid gets Xen 3.0

Post date: May 12, 2006, 12:05 Category: Software Views: 2552 Comments
Tutorial quote: Now that the Xen 3.0 packages have made it to Debians unstable distribution installation has become much more straightforward. Here we'll take a look at installing and getting started with it upon a generic unstable machine.
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