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

Network metrics


The third common type of metrics that can be obtained from esxtop is network metrics. These metrics can help you troubleshoot network usage for your vSphere host and the virtual machines:

  1. Connect to a vSphere host using SSH and log in as root or an administrative user.

  2. In the command prompt, type esxtop without any flags.

  3. Press n to view the network screen. This screen displays detailed information about network usage.

  4. You need to enable some additional information for the physical network properties of vSphere hosts in esxtop for the UP (uplink), FULLDUPLEX, SPEED, TEAM-PNIC fields. Press c to enable the aforementioned fields; you can press c again to remove any field.

  5. Press f to go into the Current Field Order screen.

  6. Press the Esc key to return to the esxtop network statistics screen.

Understanding network metrics

In esxtop, network statistics are displayed for each port of a virtual switch. These ports are then either linked as uplinks to a physical network adapter or they are...