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  • Book Overview & Buying VMware vSphere Troubleshooting
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VMware vSphere Troubleshooting

VMware vSphere Troubleshooting

By : Zeeshan Munir
4.3 (4)
Buy this Book
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VMware vSphere Troubleshooting

VMware vSphere Troubleshooting

4.3 (4)
By: Zeeshan Munir
Buy this Book

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 (11 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
Lock Free Chapter
1
1. The Methodology of Problem Solving
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1. The Methodology of Problem Solving
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Troubleshooting techniques
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Configuring the vSphere management agent
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VMware vMA features
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PowerCLI
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A comprehensive reference of log files
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Understanding the hardware health of vSphere hosts
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Miscellaneous tools
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Summary
2
2. Monitoring and Troubleshooting Host and VM Performance
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2. Monitoring and Troubleshooting Host and VM Performance
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Tools for performance monitoring
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Analyzing esxtop results
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Memory statistics
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Network metrics
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Storage metrics
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vCenter performance charts
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Configuring logging level for performance
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Virtual machine troubleshooting
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Summary
3
3. Troubleshooting Clusters
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3. Troubleshooting Clusters
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An overview of cluster information
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Cluster performance monitoring
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vSphere HA
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Failing heartbeat datastores
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Detaching datastores with vMA
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Detaching a datastore using vSphere PowerCLI
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vCenter server rejects specific datastores
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DRS-enabled storage
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Insufficient resources and vSphere HA failover
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I/O control troubleshooting
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vSphere Fault Tolerance for virtual machines
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Summary
4
4. Monitoring and Troubleshooting Networking
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4. Monitoring and Troubleshooting Networking
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Log files
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Understanding the virtual network creation process
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Network troubleshooting commands
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Troubleshooting VLANs
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Verifying physical trunks and VLAN configuration
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Verifying VLAN configuration from CLI
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Troubleshooting VMkernel interfaces
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Verifying configuration from DCUI
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Troubleshooting with port mirroring
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Summary
5
5. Monitoring and Troubleshooting Storage
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5. Monitoring and Troubleshooting Storage
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Storage adapters
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Storage log files
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Multipathing and PSA troubleshooting
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LUN and claim rules
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Identifying storage devices and LUNs
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Troubleshooting paths
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Multipath policy selection from the vSphere client
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LUN troubleshooting tips
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Storage module troubleshooting
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Troubleshooting iSCSI-related issues
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Troubleshooting NFS issues
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Troubleshooting VMFS issues
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SAN display problems
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SAN performance troubleshooting
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Summary
6
6. Advanced Troubleshooting of vCenter Server and vSphere Hosts
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6. Advanced Troubleshooting of vCenter Server and vSphere Hosts
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vCenter managed hosts
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Setting up vCenter Server the statistics intervals from vSphere Web Client
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vSphere SSL certificates
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Replacing machine certificates
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Implementing SSL certificates for ESXi
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Regenerating certificates
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vCenter Server database
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vSphere HA agent troubleshooting
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The HA agent initialization error
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HA agent host failed state
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Network partitioned or network isolated errors
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Commonly known auto deploy problems
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Summary
7
A. Learning PowerGUI Basics
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A. Learning PowerGUI Basics
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Using the VMware Community PowerPack
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Summary
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B. Installing VMware vRealize Operations Manager
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B. Installing VMware vRealize Operations Manager
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Summary
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C. Power CLI - A Basic Reference
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C. Power CLI - A Basic Reference
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Summary
10
Index
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Index

Chapter 3. Troubleshooting Clusters

Today's virtual environment is not considered complete until it remains online 24/7. High availability is supported by almost all kinds of operating systems, regardless of its type. VMware also supports high availability and the Distributed Resource Scheduler (DRS) to allow you to have a fully automated and highly available infrastructure. DRS manages the workload and load balances them within the vSphere cluster. It is based on advanced algorithms to automate the migration of virtual machines using vMotion from one host to another when the resources are not available to satisfy the virtual machine requirements on a particular host. The migrations are done entirely without any downtime.

To avoid downtime and to monitor the performance of your infrastructure, you must know how to troubleshoot DRS and high availability issues in VMware infrastructure. In this chapter, you will also see how to troubleshoot vMotion and storage vMotion issues...

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