--- title: "How VMware Cloud on AWS Handles Host Failures Automatically" description: "When you run a large enough infrastructure, failure is inevitable. How you handle that can be a big differentiator." date: 2020-09-15T10:56:32+00:00 modified: 2026-06-01T21:58:32+00:00 author: James Kilby categories: - VMware - VMware Cloud on AWS - Homelab - Storage - vExpert - Networking - Artificial Intelligence - Automation - Docker - NVIDIA - Traefik - Ansible - TrueNAS Scale - vSAN - vSphere tags: - #AWS - #Failure - #SRE - #VMC - #VMware - #VMware Cloud on AWS url: https://jameskilby.co.uk/2020/09/vmc-host-errors/ image: https://jameskilby.co.uk/wp-content/uploads/2022/11/iu-1-1024x526.png --- ![VMware Cloud on AWS \(VMC\) resource hub](https://jameskilby.co.uk/wp-content/uploads/2022/11/iu-1.png) [VMware](https://jameskilby.co.uk/category/vmware/) | [VMware Cloud on AWS](https://jameskilby.co.uk/category/vmware/vmware-cloud-on-aws/) # How VMware Cloud on AWS Handles Host Failures Automatically By[James](https://jameskilby.co.uk)September 15, 2020 · Updated June 1, 2026 • 📖1 min read(174 words) 📅 **Published:** September 15, 2020• **Updated:** June 01, 2026 When you run a large enough infrastructure, failure is inevitable. How you handle that can be a big differentiator. With VMware Cloud on AWS, the hosts are monitored 24×7 by VMware/AWS Support all as part of the service. If you pay for X number of hosts you should have X. That includes during maintenance and failure operations. I’m not sure lucky is the right word but I did witness a host issue with a customer I was working with. True to the marketing, it was picked up and automatically remediated. ![VMC Host Errors Screenshot](https://jameskilby.co.uk/wp-content/uploads/2023/04/Screenshot-2020-08-27-at-16.56.37-1536x182-2-1024x121.png) Looking at the log extract above a new host was being provisioned the same minute the issue was identified. Obviously, this needed to boot and join the VMware/vSAN cluster before a full data evacuation takes place on the faulty host and finally, the host is removed. All of this was seamless to the customer. I noticed it as a few HA alarms tripped in the vCenter (these were cosmetic only). 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