Category Archives: Virtualization

Cisco UCS and Default Authentication Domains

Posted on May 22, 2012 by brian.wuchner

I’ve recently been working with Cisco UCS — and more specifically the UCS Powertool (the powershell management component). Initially, my scripts were using a local account in UCSM for authentication. However, after changing the “Default Authentication Realm” from Local to … Continue reading →

Posted in Virtualization | 5 Comments

Finding VMs that will boot into the BIOS screen

Posted on May 15, 2012 by brian.wuchner

A few months ago, after a round of Windows OS patching on development servers, a server admin notified me that their server did not come back online after the patch initiated reboot. Looking at the VM console he noted that … Continue reading →

Posted in Scripting, Virtualization | Leave a comment

VMware Certified Professional 5

Posted on May 9, 2012 by brian.wuchner

I recently completed the requirements for the VMware Certified Professional 5 certification. Achieving certifications isn’t a priority for my current employer (a VMware customer) and as such it had been over 10 years since I last attempted an IT certification. … Continue reading →

Posted in Virtualization | 2 Comments

Power On virtual machine – Unable to access file since it is locked

Posted on April 30, 2012 by brian.wuchner

Several times in the past few weeks I have ran into virtual machines that do not power on because of locked files. Steps to troubleshoot this issue are described in KB10051: Virtual machine does not power on because of locked … Continue reading →

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Verify VAAI settings with PowerCLI

Posted on April 23, 2012 by brian.wuchner

I recently had a need to validate that all hosts in a specific vCenter had appropriate vStorage API for Array Integration (VAAI) settings. I didn’t want to change the values, I was just looking for the existing values. This short … Continue reading →

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