Book Image

VMware vSphere Troubleshooting

Book Image

VMware vSphere Troubleshooting

Overview of this book

VMware vSphere is the leading server virtualization platform with consistent management for virtual data centers. It enhances troubleshooting skills to diagnose and resolve day to day problems in your VMware vSphere infrastructure environment. This book will provide you practical hands-on knowledge of using different performance monitoring and troubleshooting tools to manage and troubleshoot the vSphere infrastructure. It begins by introducing systematic approach for troubleshooting different problems and show casing the troubleshooting techniques. You will be able to use the troubleshooting tools to monitor performance, and troubleshoot issues related to Hosts and Virtual Machines. Moving on, you will troubleshoot High Availability, storage I/O control problems, virtual LANS, and iSCSI, NFS, VMFS issues. By the end of this book, you will be able to analyze and solve advanced issues related to vShpere environment such as vcenter certificates, database problems, and different failed state errors.
Table of Contents (16 chapters)
VMware vSphere Troubleshooting
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Installing VMware vRealize Operations Manager
Power CLI - A Basic Reference
Index

vSphere HA agent troubleshooting


vSphere HA host states are reported by vCenter Server when there are some errors in your vSphere hosts. When working with vSphere infrastructure in a highly available environment, you may encounter different kinds of errors that prevent vSphere HA from working correctly, for example, HA agent on crimv1esx002.linxsol.com in cluster Cluster-ML-FT in DataCenter017-Milan has an error or insufficient resources to satisfy HA failover level on cluster. This is followed by agent error, vSphere HA agent cannot be correctly installed or configured, Internal AAM Errors - agent couldn't start, and so on.

In this topic, we will discuss possible causes and troubleshooting tips to solve these issues. A good starting point for troubleshooting HA agents' errors could be VMkernel logs that you can find in /var/log, as discussed in previous chapters.

As the VMware Knowledge Base suggests (http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&amp...