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

Virtual machine troubleshooting


You can face some common problems with your virtual machine's life cycle in a vSphere infrastructure. I will cover some of the potential problems and how to troubleshoot them in the following sections:

  • USB-attached virtual machines

  • Fault-tolerant virtual machines

USB-attached virtual machines

In the recent versions of ESXi (4.0 and later), a USB device can be controlled by a virtual machine autonomously, and the virtual machine is fully responsible for managing it using VMDirectPath. Using VMDirectPath, a USB drive remains attached to the virtual machine while the virtual machine is transferred to other vSphere host systems. In the USB pass-through mechanism, the I/O requests can be accessed directly to or from the USB device to the virtual machines. This not only improves the overall performance of the vSphere host system but also benefits us moving and attaching USB devices to different virtual machines using vMotion and a USB device is managed by VMkernel.

Non...