I recently ran into this error when reconnecting a disconnected host to vCenter: The error message stated: Permission to perform this operation was denied. You do not hold privilege “System…

The settings on the NIC Teaming tab of a vSwitch or portgroup determine how network traffic traverses the network adapters in an ESXi host and how to respond to changes…

I see vmkfstools -punchzero quite a bit as one of the search terms leading to my other posts about vmkfstools, so thought it would be worthwhile giving this useful feature…

CDP and LLDP are discovery protocols that allow devices (or hosts in the case of ESXi) to share network information with the networking equipment they are connected to. Discovery protocols…

NetFlow is a network analysis tool that you can use to monitor network monitoring and virtual machine traffic and is useful to be aware of when you are thinking about…

There are a number of command line tools you can use to view and configure virtual switch settings. To start with there are the following esxcfg-/vicfg- commands: esxcfg-vswitch – Used…

There are a number of ways to migrate network configuration from a standard vSwitch to a dvSwitch. The method used is normally determined by factors such as how many hosts…

By default, the default iSCSI configuration creates only one path to each iSCSI target. Port binding is used to provide multiple paths to an iSCSI array. With vSphere 5, iSCSI…

Datastore clusters allow you to pool storage resources. You could think of datastores within a datastore cluster as being similar to hosts in a HA cluster. Like with a HA…

This post is intended to look at the VCAP-DCA objective of the same title. The thing that springs to mind here is thin provisioning and other methods of provision virtual…