VCAP5 DCA Study Guide


Section 6 – Perform Advanced Troubleshooting

Objective 6.1 – Configure, Manage, and Analyze vSphere Log Files

Knowledge

  • Identify vCenter Server log file names and locations

http://kb.vmware.com/kb/1021804

  • Identify ESXi log files names and locations

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-host-management-guide.pdf#page=91

http://kb.vmware.com/kb/2004201

  • Identify tools used to view vSphere log files

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-host-management-guide.pdf#page=91

Skills and Abilities

  • Generate vCenter Server and ESXi log bundles

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-host-management-guide.pdf#page=92

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-host-management-guide.pdf#page=95

http://kb.vmware.com/kb/1011641

http://kb.vmware.com/kb/1010705

  • Use esxcli system syslog to configure centralized logging on ESXi hosts

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-host-management-guide.pdf#page=93

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=134

Test centralized logging configuration

Analyze log entries to obtain configuration information

Analyze log entries to identify and resolve issues

Install and configure VMware syslog Collector and ESXi Dump Collector

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-installation-setup-guide.pdf#page=212

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-installation-setup-guide.pdf#page=213

 

Tools

vSphere Management Assistant Guide

vSphere Command-Line Interface Concepts and Examples

Product Documentation

vSphere Client

VMware syslog Collector

ESXi Dump Collector

esxcli

 

Objective 6.2 – Troubleshoot CPU and Memory Performance

Knowledge

  • Identify resxtop/esxtop metrics related to memory and CPU

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-monitoring-performance-guide.pdf#page=49

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-monitoring-performance-guide.pdf#page=52

http://www.yellow-bricks.com/esxtop/

http://communities.vmware.com/docs/DOC-9279

  • Identify vCenter Server Performance Chart metrics related to memory and CPU

http://communities.vmware.com/docs/DOC-10398

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-monitoring-performance-guide.pdf#page=9

Skills and Abilities

  • Troubleshoot ESXi host and Virtual Machine CPU performance issues using appropriate metrics

http://www.vmware.com/pdf/Perf_Best_Practices_vSphere5.0.pdf#page=19

http://www.vmware.com/pdf/Perf_Best_Practices_vSphere5.0.pdf#page=39

http://www.yellow-bricks.com/esxtop/

http://communities.vmware.com/docs/DOC-9279

  • Troubleshoot ESXi host and Virtual Machine memory performance issues using appropriate metrics

http://www.vmware.com/pdf/Perf_Best_Practices_vSphere5.0.pdf#page=25

http://www.vmware.com/pdf/Perf_Best_Practices_vSphere5.0.pdf#page=26

http://www.yellow-bricks.com/esxtop/

http://communities.vmware.com/docs/DOC-9279

  • Use Hot-Add functionality to resolve identified Virtual Machine CPU and memory performance issues

http://searchvmware.techtarget.com/tip/VMware-vSphere-hot-add-RAM-and-hot-plug-CPU-Not-so-hot-but-still-cool

http://media.techtarget.com/digitalguide/images/Misc/10-things-you-need-to-know-about-VMware-vSphere-Hot-Add-RAM-and-CPU-1.jpg

Tools

vSphere Resource Management Guide

Product Documentation

vSphere Client / Web Client

vSphere CLI

resxtop/esxtop

 

Objective 6.3 – Troubleshoot Network Performance and Connectivity

Knowledge

  • Identify vCLI commands and tools used to troubleshoot vSphere networking configurations

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=111

  • Identify logs used to troubleshoot network issues

Skills and Abilities

  • Utilize net-dvs to troubleshoot vNetwork Distributed Switch configurations

net-dvs –h (will return usage)

https://wiki.eng.vmware.com/Huawang#Create_dvs (VMware internal documentation)

  • Utilize vSphere CLI commands to troubleshoot ESXi network configurations

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=111

  • Troubleshoot Private VLANs

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-networking-guide.pdf#page=29

http://kb.vmware.com/kb/1010703

http://kb.vmware.com/kb/1010691

  • Troubleshoot vmkernel related network configuration issues

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-networking-guide.pdf#page=16

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=121

http://communities.vmware.com/docs/DOC-9876

  • Troubleshoot DNS and routing related issues

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=123

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=126

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-networking-guide.pdf#page=74

  • Use esxtop/resxtop to identify network performance problems

http://www.yellow-bricks.com/esxtop/

http://communities.vmware.com/docs/DOC-9279

  • Analyze troubleshooting data to determine if the root cause for a given network problem originates in the physical infrastructure or vSphere environment

http://communities.vmware.com/docs/DOC-9876

  • Configure and administer Port Mirroring

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-networking-guide.pdf#page=68

  • Utilize Direct Console User Interface (DCUI) and ESXi Shell to troubleshoot, configure, and monitor ESXi networking

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=111

Tools

vSphere Command-Line Interface Concepts and Examples

vSphere Installation and Setup Guide

vSphere Resource Management Guide

Product Documentation

vSphere Client

vSphere CLI

esxcli

net-dvs

resxtop/esxtop

 

Objective 6.4 – Troubleshoot Storage Performance and Connectivity

Knowledge

  • Identify logs used to troubleshoot storage issues
  • Describe the attributes of the VMFS

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-storage-guide.pdf#page=114

Skills and Abilities

  • Use esxcli to troubleshoot multipathing and PSA-related issues

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=42

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=82

  • Use esxcli to troubleshoot VMkernel storage module configurations

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-storage-guide.pdf#page=149

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=89

  • Use esxcli to troubleshoot iSCSI related issues

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=57

  • Troubleshoot NFS mounting and permission issues

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=48

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-storage-guide.pdf#page=127

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-troubleshooting-guide.pdf#page=53

  • Use esxtop/resxtop and vscsiStats to identify storage performance issues

http://www.yellow-bricks.com/esxtop/

http://communities.vmware.com/docs/DOC-9279

http://www.yellow-bricks.com/2009/12/17/vscsistats/

http://communities.vmware.com/docs/DOC-10095

http://ikb.vmware.com/kb/1012714

  • Configure and troubleshoot VMFS datastores using vmkfstools

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=28

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-storage-guide.pdf#page=205

  • Troubleshoot snapshot and resignaturing issues

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-storage-guide.pdf#page=122

  • Analyze log files to identify storage and multipathing problems

Tools

vSphere Command-Line Interface Concepts and Examples

vSphere Installation and Setup Guide

vSphere Resource Management Guide

vSphere Troubleshooting Guide

Product Documentation

vSphere Client

vSphere CLI

esxcli

resxtop/esxtop

vscsiStats

vmkfstools

Objective 6.5 – Troubleshoot vCenter Server and ESXi Host Management

Knowledge

  • Identify CLI commands and tools used to troubleshoot management issues

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=21

Skills and Abilities

  • Troubleshoot vCenter Server service and database connection issues

http://communities.vmware.com/docs/DOC-9880

http://kb.vmware.com/kb/1003926

http://kb.vmware.com/kb/1003979

  • Troubleshoot the ESXi firewall

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=130

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-security-guide.pdf#page=34

  • Troubleshoot ESXi host management and connectivity issues

http://kb.vmware.com/kb/1003409

  • Determine the root cause of a vSphere management or connectivity issue

http://communities.vmware.com/docs/DOC-9880

  • Utilize Direct Console User Interface (DCUI) and ESXi Shell to troubleshoot, configure, and monitor an environment

http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-command-line-interface-solutions-and-examples-guide.pdf#page=131

 

Tools

vSphere Command-Line Interface Concepts and Examples

vSphere Installation and Setup Guide

vSphere Troubleshooting Guide

Product Documentation

vSphere Client

vSphere CLI

ESXi Shell

esxcli

DCUI