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vCenter Troubleshooting

vCenter Troubleshooting

By : Chuck Mills
4 (3)
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vCenter Troubleshooting

vCenter Troubleshooting

4 (3)
By: Chuck Mills
Buy this Book

Overview of this book

The book is designed for the competent vCenter administrator or anyone who is responsible for the vSphere environment. It can be used as a guide by vSphere architects and VMware consultants for a successful vSphere solution. You should have good knowledge and an understanding of core elements and applications of the vSphere environment.
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
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1
1. vCenter Upgrades and Migrations
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1. vCenter Upgrades and Migrations
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Best practices for upgrading to vCenter Server
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New and updated information in vSphere 6
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Migrating vCenter from SQL Express to SQL Server
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Deploying vCenter Server Appliance with no DHCP server
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Upgrading from Windows vCenter 5.1 to vCenter Server Appliance
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Summary
2
2. Working with the vCenter Database
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2. Working with the vCenter Database
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Changing the vCenter database location
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Growing the vCenter Server database
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Reinitializing the vCenter Server database
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Fixing the vCenter Server service and database connection issues
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Recovering from an improper shutdown of VCSA
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Resolving low and no space problems
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Resources for other database issues
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Summary
3
3. Setting Access and Permissions
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3. Setting Access and Permissions
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Introducing vCenter Single Sign-On
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Unlocking and resetting the SSO administrator password
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Adding additional Active Directory authentication in vCenter SSO 5.5
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Permissions for vCenter and vCenter Operations Manager
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Tips for troubleshooting vCenter permissions
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Summary
4
4. Monitoring and Performance Considerations
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4. Monitoring and Performance Considerations
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Overview of disk I/O performance
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Pinpointing the most I/O-intensive virtual machines
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Changing Java memory usage for performance
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Fixing issues with performance data that do not appear in vCenter
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Summary
5
5. Working with Storage
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5. Working with Storage
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Deleting virtual machine snapshots that have locked files
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Unmounting a LUN from ESXi hosts
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Using vCenter operations for troubleshooting storage devices
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Summary
6
6. Solving Some Not-so-common vCenter Issues
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6. Solving Some Not-so-common vCenter Issues
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Solving the problem of no objects in vCenter
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Fixing the VPXD must be stopped to perform this operation message
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Removing unwanted plugins in vSphere
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Summary
7
7. Backup and Recovery
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7. Backup and Recovery
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Procedure for backing up vCenter SSO 5.5
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Summary
8
8. Additional Support Methods and Tools
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8. Additional Support Methods and Tools
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VMware vCenter Support Assistant
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Requirements for the vCenter Support Assistant
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Installing and configuring the vCenter Support Assistant
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VMware Labs Flings
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Finding resources to support your VMware environment
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Summary
9
9. Troubleshooting Methods
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9. Troubleshooting Methods
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Troubleshooting workflow
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Summary
10
Index
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Index

Changing Java memory usage for performance

According to the vSphere Installation and Setup Guide, the vCenter Server includes several Java services in the installation of components, such as vCenter Management Web services, Inventory Services, and Profile-Driven Storage Services. When you install the vCenter Server, you get the option to select the size of the vCenter Server inventory for allocating memory for these services. The inventory size determines the maximum Java Virtual Machine (JVM) heap settings for these services. If, for some reason, this is not set correctly, then it could affect the vCenter performance.

The following image shows the default values for the JVM heap settings in vSphere. For version 5.5, table 2.5 of the vSphere Installation and Setup Guide can be found on page 20 at http://pubs.vmware.com/vsphere-55/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-552-installation-setup-guide.pdf.

Changing Java memory usage for performance

Use the following procedure if you find that there is a need to change...

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