What You Need to Know About VMware High Availability


VMware’s High Availability feature, also known as VMware HA, is a subset of vSphere Availability and part of the broader vSphere suite of technologies. It helps minimize virtual machine downtime in the event of a hypervisor (ESXi) host failure. With HA, vSphere can detect host failures and restart virtual machines on other hosts.

VMware HA includes multiple configurable features. The right choice of configuration options varies depending on your specific use case (host failure, admission control, etc.). However, the default settings are a great starting point for many vSphere deployments.

Popular HA features include:

  • Failure Response
  • VM Restart Policy
  • VM dependency restart condition
  • Response for Host Isolation
  • Datastore with PDL (Permanent Device Loss) Response
  • Datastore with APD (All Paths Down) Response
  • VM Monitoring
  • Host failures cluster tolerates
  • Define host failover capacity by
  • Percentage

Review VMware HA concepts, best practices, common misconceptions, and a configuration walkthrough in this article that’s part of our Complete Guide to VMware Administration.

Discover how we can help you make the most of your VMware environment. Talk to us today.

Related Blogs

VMWare Competitors: Exploring Migration Options after Broadcom’s Acquisition

As the saga of the recent $69 billion acquisition of VMware by Broadcom continues to play out, it has sent…

VMWare Alternatives – What’s Next For Your Cloud Practice

As a VMware partner, you may have received notice that Broadcom is terminating your contract.  It’s like the tech world’s…

Navigating the VMware Acquisition: A Pragmatic Approach to Migration in the Broadcom Era

Introduction: I received a text from a former colleague and friend out of the blue today that read “I guess…