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Category Archives: ESXi

App HA 1.1 Released – Now available for download

App HA overview

The latest version of App HA, 1.1, was released last week and is now available for download. This release has a number of cool new features that will greatly increase the usability of App HA. I will do additional post(s) on these in the next few weeks.

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vSphere Distributed Switch – Backup and Restore

Continuing on with features found in the vSphere Distributed Switch, the Backup and Restore capability is a feature I rarely saw used when I was in the field. I saw, and still do see, customers going out of their way to make sure they can backup the vCenter database, and even more so SSO, but if you have to rebuild your vCenter or migrate to a new one and don’t have a backup of your Distributed Switch you’re going to be in for a lot of work.

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PVSCSI and Large IO’s

Here’s a behavior that a few people have questioned me about recently:

Why is PVSCSI splitting my large guest operating system IO’s into smaller blocks?

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Join our VMware Hands-on Labs Online Workshop on Tuesday, March 25th 10:00 AM PDT


HOL-CertSeal_200Join our VMware Hands-on Labs Online Workshop on Tuesday, March 25th 10:00 AM PDT.

In our vSphere with Operations Management 101 online workshop, you will learn first-hand how vCenter Operations Manager can help you manage your vSphere environments. We will walk you through the steps to access the live vCenter Operations labs.  Using the Hands-on Labs online portal you will be able try vCenter Operations Manager and chat with our VMware experts who use this product to monitor the Hands-on Labs infrastructure. Attend this online workshop to see how vCenter Operations Manager provides comprehensive visibility into the health and performance of your vSphere environments, helps you improve the efficiency of your virtual infrastructure, increase your consolidation ratios, and how it provides capacity management with “what if” planning capabilities.

This online workshop is targeted at customers who are running vSphere and who are new to vSphere with Operations Management.

Date: March 25thworkshop
Time: 10:00 AM PDT
Length: 1 Hour
Register

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.

What is PreferHT and When To Use It

I’ve been involved recently in a couple situations in which the ‘preferHT’ advanced setting has been implemented, but for the wrong reasons. I want to re-clarify how and when it should be used. As with many advanced settings, it can be helpful or hurtful.

The Myth

“PreferHT exposes Hyper-Threading to the guest operating system” – False!

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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

Updated VMware Mobile Knowledge Portal

The VMware Mobile Knowledge Portal iOS and Android app has recently been updated. It sports a great new look and feel and makes finding the information you need even easier by grouping it by area in our SDDC vision.

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Security of the VMware Hypervisor – A Whitepaper

Hi!

I’m happy to announce the availability of a whitepaper that I had been working on much of the past year. Since I joined VMware back in January of 2013, an almost weekly request was for a whitepaper that help IT team explain the security of the VMware vSphere hypervisor, a.k.a. ESXi, to a security professional.

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