Prepare storage for maintenance (mounting/un-mounting VMFS Datastores) When you un-mount a VMFS datastore, it remains intact but it can no longer be seen from the hosts on which you have…

vCenter Storage Filters are enabled by default within Virtual Center. They give a layer of protection while performing VMFS datastore operations, such as when creating new vmfs datastores. Storage filters…

What is NPIV ? According to Wikipedia: “N_Port ID Virtualization or NPIV is a Fibre Channel facility allowing multiple N_Port IDs to share a single physical N_Port. This allows multiple…

vSphere DirectPath I/O (DPIO) is a vSphere feature that takes advantage of VT enabled processors installed in ESXi hosts in order to improve perfomance for virtual machines. A processor feature…

I recently upgraded a test environment to vSphere 5.1 and came across and issue with single sign on. The upgrade to 5.1 went fine, it was only when I rebooted…

I had a discussion about this recently – it’s not something I’ve looked at for a while, so thought it worth a post here. When you are configuring a virtual…

I’ve recently gone through an exercise to configure the scratch partition on a number of boot from san hosts, which got me thinking about partition layout in general on ESXi…

VMware have recently released a new fling with the aim of helping people check their servers to ensure they are ready to install vCenter 5.1. Run this script on the…

I’ve recently set vCenter Server Appliance up in a nested test environment, so thought I’d run through the process of how to get it up and running in VMware Workstation.…

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