Virtualization

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Learn how to manage and secure virtual environments, stay current on virtualization news, and discover best practices for getting the most out of desktop and server virtualization.
  • Book: VMware ESX Server in the Enterprise

    Posted August 27, 2008 - 10:11 am

    VMware ESX creates a myriad of problems for administrators, specifically problems having to do with the scheduling of various operations around the use of normal tools and other everyday activities such as deployments, VMotion to balance nodes, and backups. Most, if not all, the limitations revolve around issues related to performance gathering and the data stores upon which VMs are placed, whether SCSI, including iSCSI, or non-VMDK files accessed from NFS shared off a NAS or some other system.
  • Virtualization, Real or Not?

    Posted August 26, 2008 - 11:53 am

    There's a renewed push toward virtualization. And with good reason. IT departments can cut server headcount dramatically, reduce electrical consumption and air conditioning loads, simplify administration, deploy new services quickly, and greatly improve reliability. It's for real.
  • Booting VMware VirtualCenter while AD is unavailable

    Posted August 24, 2008 - 3:48 pm

    Sometimes there is a chicken and the egg situation where you need VMware VirtualCenter before you can boot your Active Directory server virtual machine.
  • Working with fixed-size virtual hard disks

    Posted August 22, 2008 - 4:27 pm

    Three tips for working with fixed-size virtual hard drives when using Microsoft Virtual Server, Virtual PC, or Hyper-V.
  • Even More Thoughts on Forensics

    Posted August 18, 2008 - 7:44 am

    Acquiring virtual machines can be difficult if the VM resides upon a virtual machine file system (VMFS). Mainly because nothing but ESX understands a VMFS. Given this how do you acquire the appropriate files for forensic analysis in a forensically sound way?
  • VMware and SSL Settings: How to Stay Safe

    Posted August 15, 2008 - 10:28 am

    Proper use of Secure Socket Layer security is a mystery even to many virtual server administrators, but it seems to be mysterious even to the developers who build it into their products-whether they know it or not.
  • More Thoughts on Forensics

    Posted August 13, 2008 - 5:55 pm

    How to preserve memory files of running VMs.
  • VMware licensing bug blacks out virtual servers

    Posted August 12, 2008 - 3:40 pm

    A bug in VMware's newest software update has blocked corporate users from starting their virtualized servers Tuesday, according to reports filed by users in the U.S. and elsewhere.
  • Thoughts on Forensics

    Posted August 11, 2008 - 3:59 pm

    Forensic Science has yet to catch up with the Virtualization Market. There are some aspects of Forensics that are possible today but when you talk about large virtual infrastructures with TBs of storage, forensics can be difficult to say the least. Here is some help to speed up gathering of a virtual machine for forensic analysis.
  • VMware's ESXi will cost you if not secured properly

    Posted August 11, 2008 - 2:35 pm

    Now that ESXi has been released for free, it is even more important to concentrate on how to secure this version of ESX. Lowering the cost will undoubtedly increase the number of users in small- and mid-sized companies, and in the enterprise as well.
  • How to troubleshoot sluggish apps

    Posted August 8, 2008 - 2:29 pm

    There's more at stake than lost productivity when application response times slow to a standstill. Company revenue also takes a hit. Here we analyze three scenarios in which application-performance problems could elude network managers.
  • Sun close to releasing xVM Server

    Posted August 7, 2008 - 4:12 pm

    Sun Microsystems has begun an early access program for its xVM Server hypervisor, a key component of its nascent virtualization product line, and intends to make a publicly downloadable version available within about a month, according to a blog post Thursday by Steve Wilson, vice president of xVM at Sun.
  • A VMware webAccess Vulnerability and How to Dodge It

    Posted August 7, 2008 - 10:46 am

    I have written in previous blogs that VMware webAccess suffers from a SSL MiTM [Man in the Middle] vulnerability. Actually more to the point the client side of the webAccess suffers from this and it has nothing really to do with VMware however they could alleviate the issue.
  • VMware joins Linux Foundation

    Posted August 6, 2008 - 2:15 pm

    Virtualization giant VMware has joined the Linux Foundation, lining up alongside existing members like Adobe, Google and IBM, the organization announced Wednesday.
  • VMware, Microsoft virtualization pitches miss issues

    Posted August 4, 2008 - 2:58 pm

    One of the major drawbacks of Microsoft's virtualization pitch is the lack of good case histories -- examples of companies that have not only picked Hyper-V for their virtualization platform, but are able to talk about how they made it work.
  • Pros and Cons of VMware's New Security Guide

    Posted August 4, 2008 - 2:49 pm

    VMware has released another hardening guideline, this time for VMware Virtual Infrastructure 3.5. This guide is useful in that it actually looks as ESXi as more than an appliance, as does the ESX Security Technical Implementation Guide from the U.S. Defense Information Systems Administration (DISA).
  • Not Using 'Best' VMware Features is Expensive

    Posted August 4, 2008 - 2:17 pm

    Many industry pundits and those investigating virtualization don't fully understand the direct costs associated with using virtualization software; specifically when they choose not to use enhancement tools such as VMware vMotion, VMware SVMotion, VMware HA and DRS.
  • VMware tool aims to help developers

    Posted August 4, 2008 - 1:08 pm

    VMware wants to make it easier for IT departments to manage the virtual machine configurations that they use for testing or developing software, and will release an upgraded Lab Manager tool on Thursday.
  • VM Forensic Tools Remain MIA

    Posted July 30, 2008 - 3:47 pm

    for investigating intrusions, hacks and data theft, but also to help analyze the security of a physical or virtual machine that has not yet been compromised. Unfortunately, there is as great a dearth of forensic tools within the virtual environment as there are in other areas of virtual-server security.
  • Tips for SMBs getting started with server virtualization

    Posted July 30, 2008 - 12:29 pm

    The tips below are designed to help small companies determine if server virtualization is right for them and how to prepare to ensure a successful initial implementation.
  • VMware to offer low-footprint ESX hypervisor free

    Posted July 23, 2008 - 9:35 am

    VMware Tuesday said it will offer the small-footprint version of its ESX virtualization software free, responding to pressure from Microsoft and other companies that are threatening VMware's lead in the virtualization market.

  • VMware Q2 revenue up 54 percent, but slightly misses Street

    Posted July 22, 2008 - 5:11 pm

    VMware reported revenue that slightly missed analyst expectations for its 2008 second quarter, a crucial period during which the virtualization leader ousted its cofounder from the CEO spot and lowered its revenue forecast for the year.
  • Citrix aims to simplify mixed virtual environments

    Posted July 15, 2008 - 10:06 am

    Citrix Systems on Tuesday announced Project Kensho, a set of tools that will allow virtual environments to be more independent of hypervisors.
  • Introduction to Virtual Iron

    Posted July 14, 2008 - 5:10 pm

    Since few servers run at full capacity, virtualization uses some software and memory techniques to leverage the speed of the server processor(s) to host multiple virtual servers on one physical server. Just as one Windows personal computer can run multiple applications at once, server virtualization allows one physical server to run multiple copies of a server operating system. This offers great value by reducing the number of physical servers needed, reducing hardware and supporting energy costs.
  • VMware replaces CEO, shares plummet

    Posted July 8, 2008 - 2:07 pm

    In a surprise move, virtualization giant VMware has replaced CEO and co-founder Diane Greene with Paul Maritz, sending the company's shares plummeting about 25 percent to roughly US$39 in afternoon trading.
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