XtendedView

  • Facebook
  • Pinterest
  • RSS
  • Twitter
  • Home
  • Technology
    • How to
    • News
    • Computer
    • Windows
  • Internet
    • WordPress
    • Web
    • Google
    • Marketing
    • Social Media
  • Gadgets
    • iOS
    • Android
    • Games
  • About
    • Our Team
  • Contact us

“Host cannot communicate with all other nodes in vSAN enabled cluster”: How to Fix the Error

Author: Editorial Staff   Last updated on: August 11, 2022    Leave a Comment  

FacebookTweetLinkedInPin

Monitoring the virtual storage area network’s requirements on a frequent basis is required to maintain a high degree of performance and availability.

It’s possible that the virtual SAN host system will experience communication issues with both the network and the expected forms of traffic. When there are issues with the network settings, this happens. You may determine if there is a network issue or if there are wrong settings by running different status reports. This is precisely what happens when you set up a virtual SAN infrastructure as a large-scale cluster of host servers. That is why it can cause communication disruption between hosts.

The use of multiple clusters helps achieve better throughput performance. This allows for the effective management of storage traffic across a large number of systems. The ability of the system to continue operating in the event that one or more of its components fail is improved by the existence of cluster nodes. Even if at least one of the working nodes fails, the system still runs.

A virtual SAN cluster can’t work properly if two or more of its members are unable to interact with one another. You can see the emergence of the error that many professionals face in this respect.

We’ll discuss the most typical connection crises that disturb operations as well as how to fix the error.

Common network issues 

Compatibility issues

One of the most common causes, which becomes the source of all problems, is incompatibility. To fix this issue, you should regularly run a compatibility check to monitor the smooth operation of the hardware as well as the software. To simplify the process, you can use internal diagnostic tools.

This will help achieve efficient virtual SAN performance. In addition, you should also monitor the operation of virtual machines, since a similar issue may affect their operation. You may utilize a variety of performance measures and alerts to find the issue. This will assist you in locating the problem and launching a repair effort before the performance of the virtual machines begins to deteriorate. The continual I/O of data, as well as how you employ memory, processor, and network capacity, are other potential causes of issues.

Driver issues

Each host must have an adapter and a driver to support a virtual SAN. You should first confirm that the driver is installed. Additionally, you can have some issues with the driver, so you should confirm that you are using the right version and that it is not defective. These factors might make it challenging for a node to connect with both the network and other nodes.

Hosts on different networks

The hosts must be connected to the same network. You must relocate one or more hosts on the network so that they may all share the same network or subnet. You might need to make some adjustments to your actual network connection before doing this.

Disabled multicast

Multicast is the protocol used by all hosts to communicate. Make sure that the network switch connecting all of the cluster nodes has multicast enabled. If this is the problem, then you must modify the physical switch’s setup.

Disruption of communication by security products

Another common cause of problems is that some security products can disrupt communication between nodes. The virtual SAN platform uses specific ports to communicate between hosts. The cause of communication failure may be the firewall used. It can block communication on these ports, thus blocking communication between hosts. As a result, you must ensure that none of these filters are blocking traffic on the ports you utilize.

How to fix the error 

Installing VMware ESXi 6.0 Update 2 (or higher), in case of VMware vSAN, is the simplest approach. We’ll advise you on what to do if you are unable or unwilling to install the update.

A host may have been put out of service, according to an error message you can see if you’re using vSphere 6.0 Update 1b. System failures result from this host’s inability to interact with other nodes.

Many people may attempt to restart the computer or detach from the cluster nodes before reconnecting, however doing so will not remove the warning. The Summary tab will continue to display this notice. Additionally, your host will provide a failure warning.

You might attempt a few of the following solutions to this issue:

Restarting the management agent

You must take the following actions:

  • Ensure that ESXi Shell or Secure Shell Internet Protocol is enabled on each host in the cluster;
  • You need to connect to a host in a virtual SAN cluster using Secure Shell or ESXi;
  • You may restart the management agent by typing “# /etc/init.d/vpxa restart”;
  • Thereafter, you need to repeat this procedure for every host.

Avoid attempting to fast switch between hosts. Try to wait at least a minute before switching to another host so that the information has time to refresh.

There can be a momentary delay in the host’s manageability when you restart the management agent. You can notice that a host is not responding, and operations may be failing right now. You will have to reset once more if this happens.

Removing hosts and adding them again

You must take the following actions:

  • Choose a host in the cluster that you may temporarily place in maintenance mode. Rely on the host that is least busy and loaded when making a decision;
  • Enter vSphere, right-click the chosen host there, and then choose “Enter maintenance mode.” Either “Ensure Accessibility” or “Full Data Migration” should be chosen. If you are successful, select a full data migration for all further hosts;
  • Take the chosen host out of the cluster. Drag it over to the data-center object in the inventory, then drop it there. Wait a few minutes before taking the following step after that;
  • Return the host to the cluster;
  • Then right-click it to go out of maintenance mode.

Conclusion

Such solutions may not help get rid of this problem for good. Error messages may reappear and you will need to redo all these steps. Often, this error occurs due to network failures, reboots, or during maintenance. You may need to contact support if errors persist.

FacebookTweetLinkedInPin

Filed Under: Technology   

More on XtendedView Right Now!

  • 5 Reasons to Choose Windows VPS in 2023

  • 4 Video Security Tips for Small Businesses

  • HTC Vive Extension Cables

  • How to Book Cheap Rental Cars In Dubai

About Editorial Staff

This is the team of writers and editors at Xtendedview.

Editorial Staff has written 757 awesome articles for us at XtendedView.

  • Find Editorial Staff On
❮
What Are the Benefits of Cloud Data Warehouses?
❯
How to Set Up Xbox Wireless Headset?

 Comment Policy

Your words are your own, so be nice and helpful if you can. Please, only use your REAL NAME, not your business name or keywords. Using business name or keywords instead of your real name will lead to the comment being deleted. Anonymous commenting is not allowed either. Limit the amount of links submitted in your comment. We accept clean XHTML in comments, but don't overdo it please. You can wrap code in [lang-name][/lang-name] tags.


Tell us what you're thinking... Cancel reply

If you want a picture to show with your comment, then get Gravatar!

Connect on Facebook

How To Tech

Latest Articles

  • Fusion Drive vs. SSD vs. HDD. Which Is Better?
  • How to Download Songs or any other Audio from Tumblr
  • How to Print Directly from the Android Phone
  • Best Mac Themes for Windows 10 : Transform Windows into a Mac

Featured Articles

  • How to Turn off Laptop Screen Manually
  • Best Alternatives for Logic Pro X on Windows 10
  • Digital Ocean Review: Cheapest cloud hosting
  • How to run Android applications on MAC
  • How to remove login password from windows 8
  • How to Play Android games on Windows PC

Trending Topics

  • Android 22
  • Apps 23
  • Automobile 6
  • Blogging 42
  • Business 118
  • Computer 128
  • Education 28
  • Games 11
  • Games 164
  • Google 13
  • How to 78
  • Internet 232
  • Marketing 12
  • Mobile 57
  • Technology 225
  • Windows 16
  • Wordpress 13
  • Some Rights Reserved. Xtendedview | Copyrights 2011-2022 | Site Map | Privacy Policy
  • XtendedView is built on WordPress
  • WordPress Hosting by Bluehost