Submitted by Haim Chibotero – Website: ITServices

The ESXi Configurator is a utility to help manage stand along ESXi hosts. This utility is a GUI interface to VMware RCLI application. The ESXi Configurator uses the VMware RCLI scripts to execute all its function and features. The utility is a GUI application that uses the RCLI perl scripts to perform its tasks. This is a very simple front end interface to the RCLI (command line only) scripts.

This initial release includes the ability to backup, restore and update your ESXi host (epically handy for people that are not using VirtualCenters Update Mangers).

VMware RCLI is required to be installed on your machine in order to use the ESXi Configurator Utility.

I have been using this tool for some time now , and it’s working great , I would really recommend it !

ESXi Configurator Utility

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Greg Shields published an interesting article that explains the difference between the hypervisors of Microsoft’s Hyper-V and VMware’s ESX. It is a response to a widespread misunderstanding. VMware supporters tend to believe that VMware ESX has a bare metal hypervisor, whereas Hyper-V runs like Microsoft Virtual Server 2005 on top of Windows. Greg explains in detail in what sense both virtualization solutions are Type 1 hypervisors contrary to Virtual Server and VMware Server, which use Type 2 hypervisors. A Type 2 hypervisor is installed on top of the administrative OS, whereas a Type 1 hypervisor runs on bare metal, a layer below the administrative OS (Windows Server 2008 in the case of Hyper-V and Red Hat in the case of ESX).

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I guess there are many IT shops these days that migrate from VMware ESX or VMware Server to Microsoft’s Hyper-V. I believe this trend will continue as soon as Hyper-V 2 for Windows Server 2008 R2 is available. Unfortunately, VMware and Microsoft use different formats for their virtual disk images. VMware virtualization solutions use the Virtual Machine Disk Format (VMDK) and Microsoft uses the Virtual Hard Disk Format (VHD).

The free Vmdk2Vhd tool can help you convert a VHD image into VMDK format. Note that it is recommended to convert a big VMDK file to multiple 2GB VMDK spanned files first. Jérôme Laban has described some other issues you might encounter.

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Earlier, I blogged about attaching VHD images and WIM files, so it is only fair that I introduce a tool that allows you to mount VMDK (Virtual Machine Disk Format) images. VMware’s format is certainly one of the most commonly used imaging formats these days. The VMware DiskMount GUI is not, despite its name, a VMware tool. It is a DEVFRAM product, and simply consists of a graphical user interface for the command line tool VMware DiskMount (vmware-mount.exe), which is a part of the free VMware Virtual Disk Development Kit. As such, you have to first download and install this toolkit before you can use the VMware DiskMount GUI.

When you first launch the VMware DiskMount GUI, you have to tell the tool where to find vmware-mount.exe. If you installed VMware’s toolkit in the default folder, then you can find it under C:\Program Files\VMware\VMware Virtual Disk Development Kit\bin\. The DiskMount GUI supports all of DiskMount’s command line parameters, including those for remote virtual disks (ESX Server and VirtualCenter).

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Microsoft Virtual PC 2007 SP1 and Sun xVM VirtualBox are both free hardware virtualization tools that can be used for testing purposes. If you plan to try Windows 7 or Windows Server 2008 R2, you should consider using a virtualization tool. Testing in a virtual environment has many advantages even if you have PCs for testing purposes. I guess most Windows admins tend to use Virtual PC simply because it is from Microsoft. However, VirtualBox is by the far the better tool, which is the topic of this article. VMware Workstation is certainly an even better choice if you are willing to spend $189.00. But for occasional testers, VirtualBox is sufficient.

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Submitted by Josh Stephens – Blog: Thwack

SolarWinds free VM Monitor is an ingenious desktop tool that continuously monitors a VMware ESX Server and its virtual machines, delivering the real-time monitoring of ESX Servers that you’ve been missing. With VM Monitor at your fingertips, you’ll be able to track virtual server health at-a-glance and ensure your mission-critical apps never fail you… after all, VM Monitor ensures you are visually alerted in real time to any issues in your virtual reality.

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Reducing hardware and power consumption costs might be viable in some scenarios with virtualization technology although the possible cost savings are often exaggerated. However, there are other factors to consider here.

Sophisticated virtualization technology does not come for free. Yes, there are a couple of free solutions available. However, they have important downsides. The most prominent solution is probably VMware Server. You could run it on a Linux host without any license costs. But we all know why VMware offers this product for free. It is not just because of Microsoft’s Virtual Server. The main reason is that they want you to buy VMware ESX after you started to like virtualization technology. You will want to have more performance, more redundancy and many other features that VMware Server lacks. Of course, this is an absolutely legitimate strategy. However, for most organizations it will mean they will pay sooner or later for virtualization technology. These costs certainly also have to be taken into account when it comes to the overall costs of server virtualization.

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This is my second post in the series about the costs of server virtualization. So, what is it about the “hay argument”: ten horses require ten times more hay than one horse? Do ten servers always consume less energy than one? I don’t think so. How much hay or power is consumed does not depend solely on the number of workers performing a certain task.

I suppose a well-fed sumo wrestler consumes ten times as much food as a ballerina. However, ten ballerinas have a fair chance to floor a sumo wrestler. Power consumption is connected to the amount of work that has to be done. Thus, if a high-end server has to do the work of ten average servers, it obviously needs a lot more power than each of them does.

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A while ago, I discussed the seven disadvantages of server virtualization. Cost was one factor that I did not cover in that post. Questioning whether one can reduce costs with server virtualization sounds a bit like blasphemy these days. You will hardly find an article about server virtualization that does not claim that it is the best way to save costs in the data center. According to this view, server consolidation is the main benefit for virtualizing servers.

The arguments supporting this claim are so obvious that most IT managers do not dare question them. Replacing ten physical servers with just one seems to be the best cost-saving measure one can think of – and since the Green IT hype began, even CEOs talk about power-saving in the data center. The calculation seems to be quite easy, too: ten horses require ten times as much hay as one horse. Every CEO can understand that. So does it really make sense to challenge the costs saving axiom of server virtualization? I think it does.

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• Top 6 Replacements for Windows Notepad http://snurl.com/2zz6w I tried to replace Notepad alredy several times, but I never succeeded somehow #
• Virtual Machine Manager 2008 and Application Virtualization 4.5 in Q4 2008 http://snurl.com/2zz8k VMM 2008 beta works fine. #
• VMware: Windows will be killed by virtual appliances. http://snurl.com/2zz9j Did anyone count how often Windows has been killed already? #
• Vista SP1 available on WSUS. WSUS team blog discusses the different packages. http://snurl.com/2zzb6 #
• Ready or Not, VMware, Here Comes Hyper-V. Nice review about Hyper-V on eWeek. http://snurl.com/2zzcn #
• Spammers Choose GMail. Google’s CAPTCHA system has been cracked. http://snurl.com/2zzd8 Expect more SPAM on your servers. #

The post entitled “Five Reasons Why VMware Virtualization is Better than Microsoft Hyper-V” on DABCC is already more than two weeks old. Perhaps I misunderstood some of the assertions in the article, but it seems to me that there are quite a few mistakes in it. I googled the topic to see if I had missed some essential news about Hyper-V; however, I wasn’t able to find anything that contradicts my view. So I decided to blog about it now because I am quite puzzled by the article’s arguments. Maybe you can tell me what I misunderstood.

I will reproduce the heading of DABCC article and sometimes a quote from Douglas Brown’s arguments, and add my comments afterwards.

1. Hyper-V is marketed as free but really isn’t.

Yeah it’s $28 bucks but that’s on top of a Windows 2008 License paid in full.

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Networkworld recently published an interesting article entitled “7 side effects of sloppy virtualization”. This title seems to indicate that the problems server virtualization might cause are solvable by being well prepared. Nevertheless, all seven arguments discussed can be considered disadvantages of server virtualization. Because I am seriously thinking of virtualizing all of our servers, I read the article with interest. So far, we have only four virtual servers with about fifteen virtual machines, but we have already encountered some of the problems mentioned in the article.

I will discuss all seven downsides from my own perspective and share some of the experiences we have had with server virtualization.

1. Magnified physical failures

Imagine you have ten important servers running on one physical host and its RAID controller runs amok, wiping out all of your hard disks. Don’t say that this is not very likely, as we have already had two or three incidents from malfunctioning RAID controllers from well-known brands.

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Ruben Spruijt wrote a comprehensive overview of Hyper-V over at Brian Madden’s site. In my view, Hyper-V is the most important component of Windows Server 2008. Although Microsoft’s new virtualization solution is still in beta, it can’t be wrong to get started with learning about it now. Even though, its user interface is fairly simple, Hyper-V is quite a sophisticated piece of software. This means that many different things can go wrong and you will only be able solve those problems if you understand the architecture of Hyper-V. Although parts of this overview are probably only for those who already have experience with virtualization solutions, it is also a good introduction into Hyper-V.

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Another year of blogging on 4sysops passed by. It was a good year. The number of page views doubled and so did the number of subscribers. So I say thank you to my loyal readers, especially to those who didn’t agree with me often. If you are a regular reader of my blog, you might be interested to know which articles have been read most often.

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I am currently evaluating Virtual Server plus Virtual Machine Manager (VMM) because I am thinking of replacing our VMware Server installations with Microsoft’s virtualization solution. Since I am still undecided, I was curious to test the beta of VMware Server 2. I was hoping that they added the feature I was waiting for (VSS support). Unfortunately, my test results didn’t end as I expected. Even though VMM didn’t really convince me to move to Virtual Server, my test of VMware Server 2 did.

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