Archive for December, 2010

Ghostly snapshots: Failed to remove snapshot

Recently I had another one of those great little problems. A VM refused to have its snapshot removed. Not because the snapshot was too big, it just failed.

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Best of VMdamentals.com 2010 Posts

Since I see “top 10” lists appear everywhere, I decided to follow in line and produce my own top 10 posts of the year 2010:

  1. Performance impact when using VMware snapshots
  2. Throughput part 2: RAID types and segment sizes
  3. Throughput part 3: Data alignment
  4. Throughput part 1: The Basics
  5. vscsiStats into the third dimension: Surface charts!
  6. VMware HA, slotsizes and constraints
  7. Breaking VMware Views sound barrier with Sun Open Storage (part 1)
  8. Ye Olde Snapshot
  9. VMware Infrastructure Resource Settings Sagas
  10. Scaling VMware hot-backups (using esXpress)

My view on things

It is great to see what interests people the most. Read the rest of this entry »

2011: a Different Point of View

The year 2010 certainly has been a very restless year for me. Lost some dear people, gained some new life around me too. The company I worked for, Dataman (www.dataman.nl) went bankrupt. I agreed to be part of a merger where employees from Dataman would merge with iTricity (www.itricity.nl).
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VMdamentals.com wishes everyone a merry X-mas!

VMdamentals.com wishes everyone a Merry Christmas and a happy New Year!

Chad’s World debut!

For those of you (like me 🙂 ) who are dying to see… The first episode of Chad’s World is online! Check it out here: Chad’s World

EXCELLENT!!

Workaround: ESXi and EMC CLARiiON registration issue

The issue mentioned in one of my previous blogposts (see ESXi and EMC CLARiiON registration issue) now has a workaround! The problem is that the host profiles of vSphere mix up the vmk0 and vmk1 interfaces, after which the CLARiiON tries to communicate through the wrong VMkernel interface with ESXi.

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Dutch VMUG 2010 presentation online

Hi all,

I just uploaded a video of my Dutch VMUG 2010 event presentation. No audio, but just a quick fly through the slides:
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Dutch VMUG 2010 photos online!

Audience shot during the keynote session

From left to right – Duco Jaspars…. uhm forgot the rest, sorry! 😉


The VMUG 2010 surely was once again a great success. Here are some photos for you all to see:
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Compellent presentation @Dutch VMUG 2010

This time I joined a session with Compellent. I have known them for their smart storage arrays, which are able to move data between storage tiers to optimize speed of regularly used data.

I’m excited to see what they have come up with this year!
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Dutch VMUG: Eric Sloof – vSphere performance troubleshooting

Today Eric delived a great presentation on vSphere troubleshooting. All resources were touched: CPU, Memory, storage and networking. Read the rest of this entry »

Soon to come
  • Coming soon

    • Determining Linked Clone overhead
    • Designing the Future part1: Server-Storage fusion
    • Whiteboxing part 4: Networking your homelab
    • Deduplication: Great or greatly overrated?
    • Roads and routes
    • Stretching a VMware cluster and "sidedness"
    • Stretching VMware clusters - what noone tells you
    • VMware vSAN: What is it?
    • VMware snapshots explained
    • Whiteboxing part 3b: Using Nexenta for your homelab
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