Having passed the VCP5 exam last week, I thought I would write the obligatory study resources blog post. So below are the resources I found most useful in preparing for the exam: 1) TrainSignal VMware vSphere 5 Training I’ve previously used the TrainSignal VMware vSphere 4 VCAP Training Package to begin preparations for the VCAP-DCA exam so was well accustomed with the style of the TrainSignal videos. Since I was in the position of needing to upgrade my VCP from 4 to 5 before February 29th 2012 to avoid needing to fulfill a class requirement again, I found this to be a great resource to quickly get up to speed on some of the new features in vSphere 5 and also provide a refresher for some of the topics that have been in the exam since the VCP 3 days.

I recently needed to provide a high level capacity overview per VMware cluster looking at some metrics of interest that were being used as a guide to the capacity state of a cluster. Note: these are by no means definitive or the ones you should be using in your environment, but for these purposes they met the requirements. The metrics I looked at per cluster were the ratio of vCPUs to pCPUs, the amount of Effective, Allocated and average Active Memory and the amount of Free Diskspace.

Following on from the blog post Testing TCP Port Response from PowerShell which provided a means to check that servers had fully rebooted after a patching and reboot cycle, I needed to take this one step further and check that all of the Windows Services set to Automatic successfully started after the reboot. This should be pretty straightforward since we have a Get-Service cmdlet. Unfortunately however, this cmdlet does not return a StartMode parameter, i.

Right, let’s set this one out. I do not, have not ever, nor probably will ever will like any AV Enterprise Management Products. However, sometimes you have to work with them and frequently the data in the Management Product does not actually reflect the end user / server estate. The below function will query the registry of a remote machine(s) and report back the state of the installed Symantec SEP client to help perform a true up.

The HP Enterprise Virtual Array Family with VMware vSphere 4.0 , 4.1 AND 5.0 Configuration Best Practises Guide, available here, contains many recommendations for ESXi configuration. There are a number of recommended settings in this document to enhance the storage performance, a subset of which I have picked as appropriate for the environment and then needed to configure them on all ESXi hosts. They can be implemented via PowerCLI and the below script demonstrates how these different types of settings can be configured.

Recently I was listening to the PowerScripting Podcast and Hal mentioned a Test-TCPPort function he had put together a while back. I had a similar need to be able to test a bunch of machines post reboot, that they had come back successfully and a Ping test wouldn’t do since that didn’t necessarily mean that Windows has successfully booted :-) So taking inspiration from that post I put together the following script (I convert it to a function for my own use, but it’s easier for my colleagues to use as a script) which will test by default RDP response from servers and report the results.

The next London VMUG will take place on 26th January 2012. The agenda is below and as usual there is a fantastic line up of well known members of the community to give you some knowledge from their real world experiences. I’m planning to attend so hope to see you there :-)

The UK PowerShell User Group for December 2011 will take place at 19.30 GMT on Thursday December 15t. The topic is ‘Use the WSMAN cmdlets to retreive WMI information and see a demo of the new WMI API’s CIM cmdlets in PowerShell v3 CTP 2’. I’m looking forward to seeing the new CIM cmdlets from V3 CTP2 since I haven’t had chance to play with those yet. Details from Richard Siddaway’s blog are below:

A few weeks ago I attended the first ever UK based VMUG at the National Motorcycle Museum in Birmingham. Put together by the same folks who arrange the London VMUG events, it was a great day out and obviously a lot of hard work had been put in by Jane, Alaric, Simon , Stuart and Martyn. I know they had put the best part of 6 months into arranging it, so a lot of effort.

I recently had a requirement to audit the Share and NTFS permissions of a Windows File Server. PowerShell contains the Get-ACL cmdlet which makes retreving the NTFS permissions fairly straightforward, but for the Share permissions it is not so easy, but we can make use of WMI and the Win32_LogicalShareSecuritySetting class. The below forum post details some discussion around using this class to find the Share permissions and unsurprisingly the legendary Shay Levy provides the solution.