unhide recovery partition
Dump Collector

ESXCLI Basics: Configure Dump Collector Host

Another basic command, but may be useful in stateless environments with no local disk usable for a diagnostic partition. Here is a quick how-to. Connect to your host through SSH or open the DCUI. Setup the VMkernel interface, remote server IP address and port: # esxcli system coredump network set -v vmk0 -i 10.10.10.10 -o 6500 Enable the remote dump collector host: # esxcli system coredump network set -e true Verify the settings: # esxcli […]

vCenter

Calculating Percentage of Cluster Resources Admission Control Policy for an unbalanced vSphere 5.x cluster

I’ve been working lately on a project for one of our customers and one of the requirements was to reuse as much hardware as possible. This led of course to a HA/DRS cluster configuration with hosts with different memory and CPU sizes. As you probably all know this will lead to an unbalanced cluster. I’ve done some research about unbalanced clusters but beside the VMware vSphere 5.1 Clustering Deepdive by Duncan Epping and Frank Denneman there wasn’t much info […]

ESXi 5.1

VMs on nested ESXi 5.x host will not start after upgrade to ESXi 5.1

Recently I upgraded my physical server to ESXi 5.1 and I have been running different VMs on it without any issues. Unfortunately, when I powered on my whole vCenter Site Recovery Manager infrastructure and tried to power on some x64-bit VMs, I received the following error message.  Checking all the settings didn’t reveal any misconfiguration or what so ever so this has to do with upgrade of my home lab server to ESXi 5.1. I […]

vCenter

Tweaking Java.exe memory usage on vCenter Server 5.1

During the upgrade of my home lab from vSphere 5.0 to vSphere 5.1 I have noticed that there is more memory consumption on my vCenter Server than before the upgrade. According to the vSphere Installation and Setup Guide, this happens because vCenter Server includes several Java services in the installation (VirtualCenter Management Webservices, Inventory Service, Profile-Driven Storage Service and Single Sign On) and when you install vCenter Server, you have an option to select the […]

Dump Collector

Configure vSphere ESXi Dump Collector

Here is a quick post about configuring the vSphere Dump Collector for your ESXi hosts. I’m not going to cover the installation process because it is really simple and straightforward. You can install the Dump Collector as stand-alone instance or integrated with vCenter Server. If you choose the last option you will have to provide the IP address, port and log in credentials for the vCenter Server. After the installation, you can configure the Dump […]

ESXi 5

Upgrading from ESXi 5.x to ESXi 5.1 using VMware Update Manager

In-place upgrade of ESXi hosts is quick and simple and well suitable for small environments. However, if you want to upgrade a large number of ESXi hosts without any downtime, you can simply use VMware Update Manager to do the job which is provided with the vCenter Server installation ISO. Before you can upgrade your ESXi hosts make sure that you upgrade the vCenter Server and VMware Update Manager to version 5.1 first. Also, make […]

vCenter

Install or upgrade the vSphere Web Client

The vSphere Web Client lets you connect to a vCenter Server system to manage your vSphere infrastructure and ESXi hosts through a browser. The vSphere Web Client requires a connection to the vCenter Single Sign On server so make sure you install it before installing vSphere Web Client. Also, make sure that the Inventory Services and the vCenter Server are upgraded to version 5.1. Currently the following web browsers are supported in version 5.1 of […]

Site Recovery Manager

How To: VMware Site Recovery Manager 5 – Part 7: VM Replication

Before we can protect a single virtual machine or a group of virtual machines, the virtual machine files need to be replicated from the Protected Site to the Recovery Site. Since we have already set up a VR infrastructure we will proceed using this mechanism. In this case, we will skip the replication configuration of a single VM and concentrate on configuring replication of multiple VMs since it’s the most common setup in a virtual […]