vCenter Virtual Appliance Network Settings Reverting

VMware vApp Options Networking Properties

In one of my lab environments my vCenter Server Appliance (VCVA VCSA*) kept reverting its DNS server settings after I changed them in the VCSA web interface (https://:5480).  After changing the Preferred DNS Server and Alternate DNS Server settings to use my Active Directory Domain Controller IPs and then rebooting the appliance, the DNS settings were removed and the Preferred DNS Server setting was reverted to the setting present before I updated it. Losing my DNS Server settings caused me all sorts of issues - my vCenter Server couldn't find ESXi hosts by name, AD authentication failed, … [Read more...]

vCenter Orchestrator Visio Stencil

vCenter Orchestrator vCO Visio Stencil Shapes

Here is a Visio stencil containing 118 shapes for vCenter Orchestrator (vCO) that I put together.  It contains basic workflow shapes (start, decision, etc.) as well as other shapes such as directory services, credentials, nested workflows, policies, custom actions and other product specific icons.  If you are mocking up some Orchestrator workflows to automate processes in your virtual data center, these shapes should give you the ability to provide a graphical representation of your ideas to share with your team. Download Links: Visio 2013 Stencil Visio 2003-2010 Stencil This stencil … [Read more...]

PowerCLI Script to Set DNS and NTP on ESXi Hosts

ESXi NTP and DNS Setting Script menu

Since joining VMware, I've built, rebuilt and updated several lab environments (home lab and work labs).  One of the problems I keep running into is incorrect/missing/disabled NTP on my ESXi hosts.  Because lab gear is often abused well-loved, BIOS time is not always correct (long periods of being powered off), settings are all sorts of jacked up (it's a lab, we're engineers, let's break stuff!!!), and documentation is non-existent.  The problem is not just in a lab environment - the number of customer environments I've seen that aren't set to use NTP is much higher than I would have thought … [Read more...]

A Stage Hand in Act Two – Thoughts on Joining VMware

vStageHand

I've been incredibly fortunate over the past several years to have worked with many VMware customers as the Virtualization Practice Manager at Clearpath Solutions Group, as a leader in the Washington DC VMware User Group, and at industry events like VMworld, EMC World, VMUGs, VTUGs and VMware Knowledge Series. As I have engaged with customers large and small, I've seen the realization of the real, tangible benefits of VMware's virtualization solutions to IT organizations and the businesses they serve. I also began to see customers become increasingly interested in solutions beyond vSphere - … [Read more...]

64TB VMDKs? Yes we can.

64tb VMDK Support in vSphere 5.5

Here’s a tasty tidbit for you – in the just announced vSphere 5.5, we can now create 64TB VMDK files.  While much of vSphere 5.5 offers a 2x increase in configuration maximums over vSphere 5.1, the increase in VMDK size is a whopping 32x.  (It may actually be a bit less – I’m not sure if the -512B caveat comes into play on the virtual disk size for vSphere 5.5.  I didn’t think to test this out in the lab during my beta testing… the max size is actually 62.9TB as space is reserved in the containing VMFS for snapshots, metadata, etc.). Now just because you can, doesn’t mean you should.  I … [Read more...]

Going Nostradamus Style on VMworld 2013

VMworld 2013 App Icon

It's hard to believe that VMworld 2013 is upon us.  Before last year's show I wrote a couple posts on my predictions for VMworld 2012 (here and here).  A good number of my predictions were correct on new products, services, and overall direction for VMware.  Emboldened by my future telling success, I thought I would try to do the same this year.  So without further ado, here's what I see coming at VMworld 2013, based on the VMworld 2013 Content Catalog, earlier announcements, rumors, social media hints, and pure conjecture. A Narrowed Focus First prediction: we'll see a narrowing of focus … [Read more...]

A vGuy in Real Life

stick_figure_sit_in_question_mark_400_clr_2623

I've been reflecting a bit tonight on my vJourney so far as I sit in my hotel room before VMworld 2013 kicks off tomorrow.  I just realized that I'm coming up on five years of blogging on VMtoday. It's been a very cool experience seeing people around the world take an interest in what I have to say, and even more awesome getting to know my fellow vExperts and readers on a personal level. I've strived to keep it real and personal, relating to real VMware users, not tossing out some fluffy cloud B.S. that has no bearing on what the real admin experiences every day in their job. I've got a few … [Read more...]

Configuring AWS Auto Scaling for WordPress

Autoscaling Wordpress on AWS

In previous posts, I covered the basics of Amazon Web Services, Preparing AWS Services to support our sample WordPress workload, and Installing WordPress in AWS with ElastiCache and S3/Glacier backups.  In this post we’ll look at how to configure an AWS Auto Scaling group of WordPress servers that respond dynamically to the load placed on them by creating new EC2 instances on demand, or spinning down unnecessary instances during low demand to save on operational expenses.  Auto Scaling uses AWS Cloud Watch to monitor AWS components and responds to alarm metrics (CPU utilization, number of … [Read more...]