Manual Set off VMware Cluster HA Event

Posted on 2011-03-14
Medium Priority
Last Modified: 2012-08-14
Is there a way to set off a VMware HA event in a cluster without causing a PSOD or killing the NIC?
Question by:securitythreat
LVL 40

Accepted Solution

coolsport00 earned 1000 total points
ID: 35127762
The only 2 ways I'm aware of are unplugging the NIC or powering down the host.


Author Comment

ID: 35128082
I believe there is a way to set off isolation mode.  However, I'm still looking into trying to figure that one out.
LVL 28

Assisted Solution

bgoering earned 1000 total points
ID: 35128102
To force a HA event a host must be isolated from the rest of the cluster on the vmkernel port where the service console resided, or in the case of multiple service consoles (managment network in ESXi) all must be unreachable for HA to kick in. As coolsport00 indicates this can happen if the network cable is unplugged or if the host is powered down suddenly (yank the power cables).

The only other way I know of to simulate this (and I have done this at my remote DR site) is to go into the physical switch and administratively set the port down.

One of the best HA articles I have read is http://www.yellow-bricks.com/vmware-high-availability-deepdiv/ - highly recommended.

Good Luck

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

In this article we will learn how to backup a VMware farm using Nakivo Backup & Replication. In this tutorial we will install the software on a Windows 2012 R2 Server.
In this article will go through how to backup a vPostgres DB from a broken vCenter Appliance and restore to a new vCenter Appliance.
Teach the user how to configure vSphere Replication and how to protect and recover VMs Open vSphere Web Client: Verify vsphere Replication is enabled: Enable vSphere Replication for a virtual machine: Verify replicated VM is created: Recover replica…
Teach the user how to use create log bundles for vCenter Server or ESXi hosts Open vSphere Web Client: Generate vCenter Server and ESXi host log bundle:  Open vCenter Server Appliance Web Management interface and generate log bundle: Open vCenter Se…

622 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question