Recently I got involved in a discussion about “Creating multiple Datacenters with one Clusters rather than one Datacenter with multiple Clusters” First of all lets get the definitions of these objects summarized (as stated in the vSphere Datacenter Administration Guide) Clusters A collection of ESX/ESXi hosts and associated virtual machines intended to work together as [...]
All posts in category VMware
Datacenters vs Clusters within the vCenter Inventory
Posted by Kenneth van Ditmarsch on February 3, 2012
http://virtualkenneth.com/2012/02/03/datacenters-vs-clusters-within-the-vcenter-inventory/
Self-employed, delivering Virtualization Consultancy
After working for VMware for over a year I decided to take the next step in my career: to start Van Ditmarsch Consultancy As a contractor I will be available to do Virtualization Consultancy, primarily focused on designing, implementing and/or validating VMware Virtualization solutions with a strong focus on business continuity, high availability and disaster recovery. [...]
Posted by Kenneth van Ditmarsch on June 7, 2011
http://virtualkenneth.com/2011/06/07/self-employed-delivering-virtualization-consultancy/
How to get Device Identifiers for I/O Devices
Recently I got a few questions about the VMware HCL and how to verify I/O devices without knowing all the key details of the device. Let’s start of by looking at the VMware HCL, note that there are additional fields on which a search can be done for I/O Devices. The Device Identifiers are separated into the following items: VID [...]
Posted by Kenneth van Ditmarsch on March 10, 2011
http://virtualkenneth.com/2011/03/10/how-to-get-device-identifiers-for-io-devices/
BIOS settings in a VMware ESX(i)/vSphere Environment
Over the last period I’ve noticed that a lot of customers aren’t aware of BIOS settings that can be changed as a best practice for VMware ESX(i)/vSphere environments. In this article I want to outline some of these best practices specifically based on HP Hardware, but feature-like options are available within other vendors as well. [...]
Posted by Kenneth van Ditmarsch on December 6, 2010
http://virtualkenneth.com/2010/12/06/bios-settings-in-a-vmware-esxivsphere-environment/
My VCDX Defend Experience
Let’s directly start with the most important news; I’ve passed my VMware VCDX defend and got VCDX Number #040! Very Cool!! The story: two weeks ago I travelled to Munich to do the final and biggest step in the VCDX Certification path – Present and Defend your Design & Implementation Plan. In preparation to this [...]
Posted by Kenneth van Ditmarsch on March 31, 2010
http://virtualkenneth.com/2010/03/31/my-vcdx-defend-experience/
Joining VMware PSO!
Its official now, I’m joining VMware PSO starting at the 1st of April! (no joke) and will become a direct colleague of Frank Denneman who joined PSO earlier this year. Last year I’ve spoken to Duncan Epping about PSO and the fact that he was thinking about a change in his position. His career move obviously meant that a PSO position will [...]
Posted by admin on March 4, 2010
http://virtualkenneth.com/2010/03/04/joining-vmware-pso/
Using LeftHand Snapshot techniques within a VMware Environment
I recently got a question from the backup architect asking me about LeftHand snapshot techniques to make backups of VM’s. The current storage design classifies VM’s based on their Recovery Point Objective (RPO) per LUN as shown in the overview below. Within this storage design it could be a good solution if we automate LeftHand [...]
Posted by Kenneth van Ditmarsch on February 27, 2010
http://virtualkenneth.com/2010/02/27/using-lefthand-snapshot-techniques-within-a-vmware-environment/
SCSI Bus Sharing on the VM Boot Disk SCSI Card
Lately I’ve been asked to review a PID (Project Initiation Document) for a new File Server project based on Linux/GFS v2 (General File System) hosted on VMware vSphere. I noticed that the PID was talking about a dynamic File Server that could (and even would) grow towards 100 TB storage space. That number immediately set [...]
Posted by Kenneth van Ditmarsch on January 18, 2010
http://virtualkenneth.com/2010/01/18/scsi-bus-sharing-on-the-vm-boot-disk-scsi-card/
Testing Scenario's VMware / HP c-Class Infrastructure
Since my blog about Understanding HP Flex-10 Mappings with VMware ESX/vSphere is quite a big hit (seeing the page views per day) I decided to also write about the testing scenario’s which should all be walked through before taking a design as this into production. In my blog I stated: Last word of advice: while implementing [...]
Posted by Kenneth van Ditmarsch on December 4, 2009
http://virtualkenneth.com/2009/12/04/testing-scenarios-vmware-hp-c-class-infrastructure/
Creating easy to identify LeftHand Volumes on ESX/vSphere
Coming from mostly HP EVA environments I got used to identify a Volume/LUN by there LUN number which was a real unique identifier. I could always ”talk” LUN number and be sure that it was understood and unique. So ever since I’ve been working with our LeftHand environment I disliked the way that every Volume/LUN is marked [...]
Posted by Kenneth van Ditmarsch on December 3, 2009
http://virtualkenneth.com/2009/12/03/creating-easy-to-identify-lefthand-volumes-on-esxvsphere/
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