Category: Virtualization

Articles related to VMware’s virtualization

Ansible for VMware

Although Ansible is typically used to execute tasks on multiple machines concurrently by generating Python scripts from YAML files and copying over those scripts to the remote machines for execution, it can also be used to execute tasks for remote endpoints on the local machine by executing the “Python-from-YAML” scripts locally. This use-case is typical
Read More »

vRealize Log Insight Authentication with Active Directory

Problem: When configuring vRealize Log Insight for authentication with Active Directory, the following errors were displayed in the ui_runtime.log (ssh to the vRealize Log Insight appliance to check): Caused by: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Server not found in Kerberos database (7))] at Source) … 73
Read More »

VMware HA Agent Failure

Problem: When trying to enable HA on an ESXi 4.1 cluster, the following error is displayed: Also, the Summary tab for the ESXi host on which the HA agent fails shows the following: Background & Analysis: The HA agents on ESXi hosts in a cluster use the Management VMkernel ports for communication. If an ESXi
Read More »

Configuring vSphere DRS : An Example

vSphere Distributed Resource Scheduler (DRS) is one of the several features in vSphere that comes very handy for deployments. Given below are details of how I use vSphere DRS (in a simple configuration) which has worked very well. I could do this given my organization’s standards for application deployment and VM nomenclature. So, this configuration
Read More »

Suppress vSphere 5 Heartbeat Datastore warning

Problem: After configuring HA for a vSphere 5 ESXi cluster, each host in the cluster displays the following error message: Background & Analysis: vSphere 5 introduces Datastore heartbeats in addition to network heartbeats for HA, in order to distinguish between a network-isolated host and a crashed host. Solution: Using the vSphere client, do the following:
Read More »

Virtualization with Sun VirtualBox

With virtualization so popular, gone are the days when you would need to partition your hard drive and configure dual-boot to give you the option of running more than one OS on your computer. Sun VirtualBox is a free, open source x86 virtualization software which allows you to create virtual machines (VMs) on your computer’s
Read More »