05-06-2008
Is Virtualisation Right for Colo?
Hi guys
I'm going to be moving a linux box into collocation to support the growing demands of my sites and have been trying to figure out if Xen is right for me. I'd appreciate hearing some real-world experience with the overhead involved and the optimal ways to slice up a box. Right now I feel I should either do an all-in-one setup with a hardened installation, use Xen to virtualise services I would normally run on other machines (such as DNS and SQL) and/or use Xen to rent out VPSes.
My main concern is that I don't have unlimited resources on this box, it's a dual p4-style 3.06GHz xeon with HT and 4 gigs of old ddr. So far I am going to need to accommodate the following:
- about 100,000 script-generated page views a day, with room for spikes, floods and other attacks
- dns services for about 30 domains, only three well traveled
- sql
- mail
Is Xen practical for my situation? I'm intrigued by the ability to replace and migrate virtual servers in a snap but not sure if the performance cost makes it more effective than a traditional solution. Any input is appreciated!
4 More Discussions You Might Find Interesting
1. UNIX and Linux Applications
Hello,
I need to build a server with both solaris and linux guest VM using full virt on x64.
The guest os are solaris 10 (not opensolaris) and linux RedHat (Centos) and Suse.
I really cant make run a solaris 10 domU on Linux (hang after grub loader ..... ) Dom0 neither on opensolaris 11 xvm... (0 Replies)
Discussion started by: manifesto
0 Replies
2. Solaris
Is there any other virtualisation made in solaris 10 other than zones and LDOMS? :confused: (3 Replies)
Discussion started by: priky
3 Replies
3. Solaris
Hi,
I am using compaq t5207tu model with 60gb harddisk and 2.5gb RAM.Its dual boot-Windows XP and Solaris. I tried installing SUN xVM on solaris to make client -server architecture (32 bit processor and 32 bit OS ) -guest OS (solaris 10)on host OS(Solaris 10). But whenever i try to install... (14 Replies)
Discussion started by: shruti_gupta
14 Replies
4. UNIX for Dummies Questions & Answers
Server is accessible only via IPMI. SSH and web control panel is timeout. Takes several hours. Server dont have high load or suspicious processes.
I checked /etc/hosts.deny and restarted ssh, but nothing :( (0 Replies)
Discussion started by: postcd
0 Replies
LEARN ABOUT DEBIAN
xen-list-images
XEN-LIST-IMAGES(8) Perl Programmers Reference Guide XEN-LIST-IMAGES(8)
NAME
xen-list-images - List all the created and configured Xen images.
SYNOPSIS
xen-list-image [options]
Help Options:
--help Show this scripts help information.
--manual Read this scripts manual.
--version Show the version number and exit.
Testing options:
--test Specify an alternate Xen configuration directory.
OPTIONS
--help Show the scripts help information.
--manual Read the manual.
--test This flag causes the script to load the Xen configuration files from a different directory than the default of /etc/xen.
--version Show the version number and exit.
DESCRIPTION
xen-list-images is a simple script which will display all the
Xen images which have been created.
This works by iterating over all files matching the pattern
/etc/xen/*.cfg which is what the xen-create-image script would
create.
For each instance which has been created we'll display the name,
and then either the IP address configured, or "DHCP" to denote
a dynamic host.
TODO
It should be possible to determine the disk(s) used by the images,
and then display their sizes.
AUTHORS
Steve Kemp, http://www.steve.org.uk/
StA~Xphane Jourdois
LICENSE
Copyright (c) 2005-2009 by Steve Kemp, (c) 2010 by The Xen-Tools Development Team. All rights reserved.
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The LICENSE file contains the
full text of the license.
4.3.1 2012-06-30 XEN-LIST-IMAGES(8)