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Tag Archives: ESXi

Managing Virtual SAN with RVC: Part 2 – Navigating your vSphere and Virtual SAN infrastructure with RVC

In our first article in this series, we looked at the history, features, and setup of the Ruby vSphere Console. Built upon the Ruby interface to the vSphere API (RbVmomi), the Ruby vSphere Console is a powerful management utility for the vSphere infrastructure, as well as an efficient integration option for third party applications and cli-based automation.

In today’s article, we will begin digging further into the features and usage of the Ruby vSphere Console by leveraging it to explore the vSphere and Virtual SAN infrastructure. Within RVC, the vSphere infrastructure is presented to the user as a virtual file system. This allows us to navigate its managed entities and even execute commands against them as well.

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Managing Virtual SAN with RVC: Part 3 – RVC Usage and Command Syntax

In today’s article, we will be taking a deeper look into the features of the Ruby vSphere Console (RVC) by examining its command structure and syntax. With RVC being built in Ruby, and built upon the Ruby interface to the vSphere API (RbVmomi), it serves to offer considerable strengths that we can leverage to expedite operations in our vSphere infrastructures. RVC began its life in VMware Labs as a Fling as a Ruby based CLI for the vSphere infrastructure. VMware Lab “Flings” are really interesting Engineering side projects. As a Fling, RVC became such a considerable tool for VMware Engineering, Support, and others that it was decided to extend its functionality to include support for Virtual SAN environments. RVC has now become a robust CLI for managing vSphere and Virtual SAN infrastructures.

First though, if you need assistance with recommended practices for RVC deployment, or how to login and navigate your vSphere and Virtual SAN infrastructure, please take a look at our first two blog articles from this series.

Managing Virtual SAN with RVC Series:
Part 1 – Introduction to the Ruby vSphere Console
Part 2 – Navigating your vSphere and Virtual SAN infrastructure with RVC

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Managing Virtual SAN with RVC: Part 1 – Introduction to the Ruby vSphere Console

Allow me to introduce you to a member of the VMware CLI family that you may have not yet met, the Ruby vSphere Console, also called RVC for short. The Ruby vSphere Console is a console user interface for VMware ESXi and Virtual Center. You may already know of the Ruby vSphere Console, as it has actually been an open source project for the past 2-3 years and is based on the popular RbVmomi Ruby interface to the vSphere API. RbVmomi was created with the goal to dramatically decrease the amount of coding required to perform simple tasks, as well as increase the efficiency of task execution, all while still allowing for the full power of the API when needed. The Ruby vSphere Console comes free with and is fully supported for both the vCenter Server Appliance (VCSA) and the Windows version of vCenter Server.  Most importantly, RVC is one of the primary tools for managing and troubleshooting a Virtual SAN environment.  

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vCenter Server 5.5 Update 1b released

Today VMware released an update to its virtualization management solution, vCenter Server. The update brings several fixes as documented in the release notes which can be reviewed in full here.

The new versions are as follows:

  • vCenter Server 5.5 Update 1b | 12 JUN 2014 | Build 1891313
  • vCenter Server 5.5 Update 1b Installation Package | 12 JUN 2014 | Build 1891310
  • vCenter Server Appliance 5.5 Update 1b | 12 JUN 2014 | Build 1891314
    downloaded now from vmware.com

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Restricting Access to the ESXi Host Console – Revisiting Lockdown Mode

I’ve had a number of requests for recommendations on the “best way” to restrict access to the ESXi host console. While this is easily done using the ESXi Lockdown Mode feature I’m finding there are some admins who are still under the impression that lockdown mode doesn’t work, and in order to prevent access to the host console you need to disable the console service. While there were some challenges with lockdown mode in the past, things changed in ESXi 5.1.

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Installing or upgrading to vSphere 5.5 made a little easier

Many of you have now kicked the tires with vSphere 5.5 either in your home lab or on some servers at work and you’re anxious to get all the new goodies running in your production environment. Perhaps some of you early adopters are already running in full production, but we’re guessing many of you are just contemplating your major upgrade now.

VMware’s Tech Support staff tend to see a surge during the month of March in number of calls to support. But guess what? Many of the issues we’re anticipating are already resolved, and we’ve been busy compiling and documenting solutions to common problems that you can handle yourself.

Those of you installing or upgrading your vSphere hosts, and vCenter Server instances to version 5.5 will find the following KB articles and Support Insider posts of great interest.

Can an admin peek inside my VM?

A great question crossed my desk today from a customer. “Can a VI Admin who has root access to ESXi “abuse” their privileges and “peek” inside the guests of VM’s hosted on the server?”

The short answer? If your ESXi admin has root or full administrator privileges, they can do anything. Nobody should be surprised by this! HOWEVER, you can mitigate, limit and monitor what is being done.

But first, let’s quickly review what is meant by “peek inside the guest”. In the human world, Continue reading

Using vCenter Heartbeat To Protect The Auto Deploy Server

I’m often asked if you can use vCenter Server Heartbeat to protect the Auto Deploy Server. The answer is yes and I’m happy to announce that we now have some videos and product walkthroughs that show how this is done.

To view the product walkthrough visit http://vmwarewalkthroughs.com and select the recently added vCenter Server Heartbeat section. Here you will see the walkthrough showing how to use vCenter Server Heartbeat to protect your Auto Deploy server.

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Are ESXi Patches Cumulative

Updated based on feedback.  Thanks for the comments!

I’d like to revisit the question “are ESXi patches cumulative”?  This time I hope to hammer home the point with an example.

In short, the answer is yes, the ESXi patch bundles are cumulative.  However, when applying patches from the command line using the ESXCLI command you do need to be careful to ensure you update the complete image profile and not just select VIBs.

There are two ways to update VIBs using the ESCLI command.  You can use either the “esxcli software vib update … command or the “esxcli software profile update …” command.  The “vib” namespace is typically used with the optional “-n <vib name>” parameter in order to update individual VIBs, where the “profile” namespace is typically used to update the host’s image profile, which may include multiple VIB updates.  The key is when applying patches use the “profile” namespace to update the complete image profile opposed to using the “vib” namespace to update selected VIBs.

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A Summary of What’s New in vSphere 5.5

On August 26th at VMworld 2013 VMware announced vSphere 5.5, the latest release of  VMware’s industry-leading virtualization platform.  This latest release includes a lot of improvements and many new features and capabilities.  In an effort to try and get my head around all this exciting new “stuff” I decided to go through the what’s new paper and compile a brief summary (well, relatively brief anyway).

Here’s the list I came up with.  I’m sure I missed some things, but this list should help you get started with learning about what’s new in vSphere 5.5.

Summary of new features and capabilities available in vSphere 5.5 Continue reading