Book Image

VMware Virtual SAN Cookbook

By : Jeffrey M Ransom Taylor, Patrick Carmichael, Simon Gallagher, Jeffrey Taylor
Book Image

VMware Virtual SAN Cookbook

By: Jeffrey M Ransom Taylor, Patrick Carmichael, Simon Gallagher, Jeffrey Taylor

Overview of this book

Table of Contents (18 chapters)
VMware Virtual SAN Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Investigating network partitions (with vSphere Web Client)


Once you have VSAN configured and enabled, you may find that the hosts are not communicating with each other properly. As VSAN is a distributed storage system, it depends on healthy, functional networking to work properly. If you have a cluster where not all nodes can communicate via both unicast and multicast IP, then one or more nodes will be in a different network partition from that of the other node(s). To work as expected, all VSAN nodes must be in the same network partition.

If the VSAN cluster is partitioned, you may notice one or more of the following behaviors:

  • The capacity of the VSAN Datastore is smaller than expected

  • You have experienced an HA failover event

  • One or more hosts report Host cannot communicate with all other nodes in the VSAN enabled cluster in vSphere Web Client:

Getting ready

You should be logged into vSphere Web Client as an administrator.

How to do it…

  1. First, verify that there is a network partition. In vSphere...