VMware Optimization Assessment and Marginal Gains

Marginal gains theory is again in focus following the Rio Olympics. In sport where the margins between glory and disappointment are so slender, coaches look for opportunities to optimize athletes natural ability through small cumulative Read More …

vcenter platform service controller high availability

vSphere 6 External Platform Service Controller with or without a load balancer vSphere 6 introduces a distributed architecture for SSO and some other services. Recommended topologies such as those in KB: 2108548 all point to Read More …

VMware NSX Security Features – Who should pay for them?

One of the typical questions when considering NSX deployments is who should be the administrator?  However this is often a two horse race, between Network and Virtualization Systems Administrators. Although NSX is SDN (software defined networking), Read More …

NSX – Availability and Redundancy

vSphere administrators normally have two great fears, failure of Storage and failure in the network layer, as both of these can result in 100s or 1000s of virtual machines simultaneously going off line. Software defined networking such as Read More …

vSphere Integrated Containers – Manageability and Security

vSphere Integrated Containers. For the last few years I’ve been noting with increasing anxiety the rise of docker and the predicted invasion of the virtualized machine environment. When VMware previewed the open source Photon platform Read More …

Using infrastructure qualities to assess new technology

Change is the only constant. Everything changes and nothing stands still. That is especially true of technology. Many of today’s products will be outdated in a single life cycle. As new features are added at Read More …

VCIX6 DCV Design – Exam Preparation Workbook

Trying to keep track of what you have read in preparing for the advanced level design exam is a task in itself. I’ve created a downloadable excel file that contains objectives and hyperlinks as per Read More …

virtual machine performance – high cpu ready lab

Application issues, undersizing a virtual machine, or applying a restrictive cpu limit can all result in cpu ready CPU Ready is the primary indicator of a cpu performance issue. Although it’s possible to create a cpu-ready alarm, every VMware Read More …

NSX Lab Series

Network Virtualization is challenging for those of us coming from a systems admin background. In this series of posts there are lots of diagrams, so you can see the layout of hosts, network switches, controllers, Read More …

virtual machine cpu limit considerations

Several years ago some of VMware’s most respected technical experts made recommendations against using virtual machine cpu limits. yellow-bricks limiting-your-vcpu More recently VMware stated “Resource limits on a virtual machine… form an artificial boundary… you need to Read More …

VMware PowerCLI Script Library

Get-ByBlueFolders Series Many of us divide services or customers using blue folders, typically in a multi service enviroment The following are scripts that can be run against all vms in a folder Get-bybluefolder list vm Read More …

Surviving a security audit

The main point of a security audit is not to try and strangle the auditor, he is just doing his job, although you might think he is there to make your life impossible. I have Read More …

VCAP6 NV Deploy – Exam Preparation Workbook

For those aspiring to certify as VCIX6-NV, the VCAP6-NV Deploy is the second stop after obtaining VCP6-NV This excel workbook helps keep track of what objectives you feel comfortable with,  what needs to be mastered, Read More …

Last of the betas (vcix6-design)

VCIX-DCV-Design / VCAP6-DCD Beta Exam Experience Only one of vmware’s new vcix/vcap 6 exams was available for public beta, I was able to enrol and took the exam on the final day of beta phase. The Read More …

vmware design math – calculate new cluster requirements

design math – calculate new cluster requirements Question 1   Inventory of 100 physical servers    75 Severs with 2 x 2 core 2.5GHZ intel CPU’s 25 Servers with 2 x 4 core 2.5GHZ intel CPU’s   Read More …

vmware-design math – calculate vsan requirements

Here’s a math question based on the vsan design and sizing guide   Customer wants to deploy 100  virtual  machines in a hybrid Virtual SAN 6.0 cluster, disk format v2 Each virtual  machine requires  2  Read More …