Confused by VMware vCenter 4 Performance Counters?


Have you ever gazed longingly into the eyes of vCenter 4 Performance Charts and thought to yourself “What the hell does that Counter mean??”.

Since the version 4 upgrade, vCenter now has an even larger amount of Performance Counters for you to use at your disposal. But what do they all mean?

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Using VMware View Portal in Windows 7

vmwareviewWhilst trying to connect to a VMware View portal on my Windows 7, 64Bit laptop i came across this error.

“VMware View Portal does not support your Operating System”

Well, i wasn’t going to change my OS, so i decided to have a look around to see if anyone else has had this problem. I came across this post on the VMTN Community Forum.

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You may create a new vApp under which of the following conditions?

A. The ESX Server hosting the vApp must in a DRS-enabled cluster.
B. The ESX Server can be a standalone host or reside in a DRS Cluster.
C. The ESX Server can be version 3.0 or later.
D. The ESX Server must be version 4.

If you picked answer D, Read on… If you picked answer C, give yourself a glass of Milk and a Gold Star!

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VMware VCP4 Beta Exam = PASSED!


I awoke this morning with a long list of alert emails from the VCP4 Beta Exam thread on the VMTN Communites forum. By logging into your Pearson Vue account you could Finally!!! find out your VCP4 Beta result.

As you can see i passed. A huge sigh of relief was let out when i saw that.

Now to find a job………Anyone??

London VMware Usergroup 24th Sept 2009

You may or may not know that the next London VMware Usergroup meeting is being held next Thursday 24th Sept. I will be in attendance and i will be looking forward to putting some faces to names, and of course a few beers afterwards.

Here is the info about the Usegroup meeting for anyone who doesn’t know about it.

Our meeting will be held at the Thames Suite, London Chamber of Commerce and Industry, 33 Queen Street, London EC4R 1AP, +44 (0)20 7248 4444. The nearest tube station is Mansion House, location information is available here. Reception is from 1230 for a prompt 1pm start, to finish around 5pm.

To register your interest in attending,please send an email to alaricdavies at yahoo dot com with up to two named attendees from your organisation. If you do not receive a confirmation mail, please don’t just turn up since we will not be able to admit you to the meeting.

Here is a copy of the agenda:

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VMware vCenter 4 minimum RAM requirement, is it 2GB or 3GB?

I’ve had numerous emails about this question which can be found in my VCP410 Practice Exam. So I think it’s time to sort this out once and for all.

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10,000 People have taken The SLOG’s VCP4 Practice Exam

Who would have thought it!! I only set it up to help me revise for the VMware VCP4 Beta Exam.

3 Months later, it now has over 60 Questions (increasing all the time). I receive emails daily thanking me for helping them prepare for their VCP4 exam.  People as far away as New Zealand are being told to use my Exam’s and Study Notes by VMware instructors.

But the most amazing part was when i checked Google Analytics to see how many people are using it:


I never expected it to be soo popular. As you can see the hits per day are increasing at a steady rate, so i’m going to do my best, to keep adding more resources, to make sure you visitors have a reason to keep coming back.

WAN VMotion – Now Supported by VMware

A couple of months ago i spoke about the possiblity of using VMotion over a WAN connection. Well yesterday at VMWorld, VMware announced that long distance VMotion was now supported for up to 200 Kilometers.

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VMware Virtualization TCO / ROI Calculator

A brief overview of what the TCO / ROI Calculator does:

This tool is designed to provide a total cost of ownership analysis comparing your current environment to a virtualized VMware environment.

By answering a few questions related to your existing environment, including the number of servers intended to be virtualized, person hours to provision a new server, and existing storage requirements, default assumptions are made based upon Alinean research, 2008, to determine your current costs.

Through virtualization with VMware, servers and desktop infrastructure can be consolidated resulting in a significant reduction in costs, as well as improvements in service levels, reduction in risks and improvements in business agility.

VMware Virtualization TCO / ROI Calculator

VMware VMDirectPath I/O

What is VMware VMDirectPath I/O?

VMDirectPath allows guest operating systems to directly access an I/O device, bypassing the virtualization layer. This direct path, or passthrough can improve performance for VMware ESX systems that utilize high-speed I/O devices, such as 10 Gigabit Ethernet. A single VM can connect to up to two passthrough devices.

VMDirectPath I/O is experimentally supported for the following Storage and Network I/O devices:

  • QLogic QLA25xx 8 Gb Fibre Channel adapters
  • Emulex LPe12000 8 Gb Fibre Channel adapters
  • LSI 3442e-R and 3801e (1068 chip based) 3 Gb SAS adapters
  • Intel 82598 10 Gigabit Ethernet controller
  • Broadcom 57710 and 57711 10 Gigabit Ethernet controllers

VMware regularly adds support for new hardware. Check your hardware’s support at the VMware Hardware Compatibility Guide portal.

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