Troubleshooting ESX cluster and HA errors – DNS could be the problem!

vsphere dns issueHas it been hours, or even days, since you started troubleshooting ESX cluster and HA errors?

I can relate to this painful and tiring experience. Although, I could be just taking it for granted that everyone doing virtual infrastructure installations has the same problems and issues that I have run into, NOT!

DNS Issues

DNS issues seem to be the most common and overlooked solution while trying to resolve ESX cluster errors. Check the FQDN of all the hosts and also make sure all the host files, including the virtual center server have the same entries.

Spell Check

Check the spelling and look for “zeros – 0” instead of “ohs – O”. I can’t stress this enough!

Once everything is verified, do an nslookup on all your server names and IP addresses. If DSN resolves your servers with a proper FQDN then I bet you a dollar your cluster and HA errors will go away. There are other things to check but I will cover them later on in the VM install forums.

Do you have a troubleshooting tip? Please help out by posting it below…

WAIT! Before You Go... Join Other Go-Getters

Enter your name & email address below to get started.

One Response to “Troubleshooting ESX cluster and HA errors – DNS could be the problem!”

We're listening. Go ahead and share your ideas?

vSphere 6
8 Updates That Make vSphere 6 Better – Keith Barker
25 VMware Interview Questions: Tough & Technical (Download)
VMware jobs in Phoenix
VMware Jobs in Phoenix Arizona (Comparing Opportunities)
DevOps training
10 Reasons VMware Admins Should Boost OpenStack Skills
DevOps Tools
DevOps Toolchain: Download 3 Free Tools Used By Pros (Ansible, Git, Jenkins)
MSDevOps Guide
Microsoft DevOps: 25+ Power-Packed Windows SysAdmin Skills (NEW Guide!)
continuous integration tools
DevOps Training Courses That Will Give You The Edge (Perfect For Beginners Who Want Skills That Are Noticed By Google & Facebook…)
Why DevOps Fails: How To Get Back On Track
Why DevOps Fails: How To Get Back On Track
Click here to learn how to Optimize WordPress Speed
WordPress Speed Optimization: Part 4 – VPS Case Study To Make Rank Higher In Google Through Faster Hosting & High Availability @ Lower Cost
Best Hosting for WordPress
Case Study: Best VPS For Easy WordPress Migration
cloudways review updated
Cloudways Review: 12 Pros & Cons From My Deep Dive Testing (VPS Series: Part 2)
ServerPilot Review: Installing WordPress On DigitalOcean (VPS Series: Part 1)
Storage Engineer Skills
Why Storage Engineer Skills Are HOT! (Can You Say Big Data?)
Rise of the Robots
I’m Amazed After Reading Rise of the Robots – Best Jobs In 2017 (You won’t Guess what’s going on!)
top virtual reality jobs
30+ Awesome Virtual Reality Jobs That Take You From Boring To Amazing! (Must Read…)
Thinking Like Seth Godin
How To STOP A 300% Salary Loss Because YOU Think Like A SysAdmin: Start Thinking Like Seth Godin (Read Now!)
3 Open Source Storage Software Alternatives For Beginners
shades of devops
Free DevOps eBook Project (Read It Now!)
How to install Genymotion
How To Install Genymotion for Beginners (Includes Google Play)
20 Questions VMware Newbies Want Answered (Free Career Guide)