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

Storage module troubleshooting


All the storage-related APIs communicate with VMkernel through storage modules. You should know some of the basic commands for troubleshooting VMkernel storage module issues.

To list all the storage modules, use the following command, which will also display the modules that are loaded within VMkernel and the status of each module—whether it is enabled or not in the active state:

esxcli system module list
Name                           Is Loaded  Is Enabled
-----------------------------  ---------  ----------
vmkernel                            true        true
chardevs                            true        true
user                                true        true
vmkapei                             true        true
dell                                true        true
vprobe                              true        true
procfs                              true        true
procMisc                            true        true
vmkapi_socket                   ...