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Home Tag "VMware ESX"

How to find objects in VMware vSphere Web client – the fastest way

DABCC
The New vSphere Web client might not be the way that many admins use to do things in vSphere. In fact it’s been very very long time we have been all working through the vSphere Windows client, so the change to the vSphere Web client aren’t obvious. And so like many others I keep doing […]

Vizioncore vOptimizer Pro for VMware ESX Technical Overview – DABCC TV #14

DABCC TV
In the following DABCC Virtualization Video Podcast, we are very happy to have George Pradel, Director of Strategic Alliances at virtualization management vender Vizioncore, Inc. In this video George walks us through the Vizioncore vOptimizer Pro solution and shares with us some best practices for virtualization management.

VMware vSphere 5.1 – VMDK versus RDM

DABCC
It seems the debate between using a VMDK on VMFS or an RDM still rages when it comes to the question which one is better for performance. The VMware team has published a lot of evidence in the past that the difference is very minor, in fact difficult to measure accurately and probably unperceivable to […]

How To Enable Shared ISOs in Hyper-V

DABCC
I’m wrapping up my TrainSignal course (shameless plug) on Microsoft Exam 70-247: Configuring and Deploying a Microsoft Private Cloud with System Center 2012 and I’ve come across a few tips that I thought would be useful. Let’s start off with a useful how-to around ISOs, When you create a VM, the default behavior of an […]

Auto LUN Discovery on VMware ESXi hosts

DABCC
Did you know that any newly presented LUNs/paths added to an already discovered target will automatically be discovered by your ESXi host without a rescan of the SAN? In this example, I currently see two iSCSI LUNs from my NetApp array: Let’s see what happens when I add new devices to my ESXi host from […]

Network Troubleshooting Using VMware ESXCLI 5.1

DABCC
When it comes to network troubleshooting in an ESXi host, there are various types of information that can be useful to a vSphere administrator such as basic information like a virtual machine’s IP Addresses, MAC Addresses, Uplink ports, Port ID, etc. to the network statistics view in the [r]esxtop command-line utility. However, all of this […]

Exiting Lockdown Mode Can Disable “root” Access (if you remove “root” from the DCUI.Access)

DABCC
I recently came across a situation where I was unable to login to my ESXi host as root.  This caught me off guard as I hadn’t intentionally disabled root, but suddenly, and seemingly out of the blue, root logins stopped working. Now just before this happened I had used the host to record a video […]

VMware How-to install vCenter Server Appliance (vCSA) and save on Microsoft’s licensing

DABCC
VMware vCenter Server is also available as vCenter Server Appliance (vCSA). It is a linux appliance – running on Suse Linux Enterprise Server 11 (SLES). It does not provide all the possibilities as if vCenter installed on Microsoft Windows Server system (lucks support for plugins, ex. Update Manager Plugin), but in smaller environments (up to […]

DRS Affinity Rules for VMware vSphere Storage Appliance

DABCC
Based on a recent customer inquiry with regards to the use of DRS Affinity rules with vSphere Storage Appliance (VSA) 5.1 environments I wanted to shared with everyone my response based on this topic. Understanding the functional capabilities of the vSphere features and how they integrate with the different solutions VMware provides it’s important and […]

Formula to Determine Availability of SAP running on an VMware ESXi Cluster

DABCC
When we architect SAP on VMware deployments an important topic is how we design for high availability. We have options in the VMware environment from VMware HA, VMware FT and use of in-guest clustering software like Microsoft Cluster Services or Linux-HA. So can we determine a numerical availability for our design expressed as a fraction/percentage (same […]

VMware Free Training for Security – 1h Online, Self-Paced

DABCC
New free training course from VMware, which is available online. Note that an account at VMware Learning required at VMware Education, but you can register for free there. You’ll be able to learn about VMware Security Suite which is available as a part of the vSphere Essentislas Plus package as a VMware vCloud Networking and Security 5.1.2. […]

VMware HA Cluster – How it Works

DABCC
When HA cluster is first created the VMs are configured with cluster default settings concerning the VM restart priority, host isolation response, and VM monitoring. But it can be changed, and you can specify specific behavior for each virtual machine. You can for example change this settings for some high priority VMs, like your domain controller VMs […]

Top 20 VMware Support Articles for December 2012

DABCC
Here is our Top 20 KB list for December 2012. This list is ranked by the number of times a VMware Support Request was resolved by following the steps in a published Knowledge Base article. Downloading and installing VMware Fusion (2014097) Uploading diagnostic information to VMware (1008525) Virtual machines fail while using 3D applications after […]

What’s new in VMware SRM 5.1.0.1 and 5.0.2

DABCC
Together with the recent release of vCenter 5.1b, there has been new release of VMware Site Recovery Manger (SRM). The SRM 5.1.0.1 is an update for the SRM 5.1 release and the 5.0.2 is an update for the older 5.0.1 release (in case you’re on the release before upgrading to the 5.1.x). SRM 5.0.2 is […]

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