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 Fault Tolerance for virtual machines


Fault-tolerant virtual machines are always anticipated in a highly available environment. Fault Tolerance not only ensures high availability but also promises stability for your virtual machines by minimizing the impact of failover rates. The more you use fault tolerance, the more you will need the skills in Fault Tolerance troubleshooting. In the upcoming section, we will discuss some of the most common problems relevant to a virtual machine's fault tolerance and how to troubleshoot them.

Before we get into troubleshooting, here's a list of some best practices for VMware Fault Tolerance configuration to avoid having problems:

  • Your cluster should consist of at least three vSphere hosts to provide Fault Tolerance to your infrastructure.

  • Always use a dedicated NAS/SAN for your storage environment equipped with at least 1 Gbit NICs.

  • Do not use more than 16 virtual disks.

  • Your resource pool should have more memory than allocated to fault-tolerant virtual...