VMware vSAN: Troubleshooting [V7]

Intended Audience

Storage and virtual infrastructure administrators who want to be able to perform initial troubleshooting on their software-defined storage with vSAN

Prerequisites

You must complete one of the following prerequisites:

• Understanding of concepts presented in the VMware vSphere®: Install, Configure, Managecourse
• Completion of the VMware vSAN: Deploy and Manage course or equivalent experience with vSAN
• Experience working with command-line interfaces

The course presumes that a student can perform the following tasks with no assistance or guidance before enrolling:

• Use VMware vSphere® Client™ for common operations
• Create and manage VMware vCenter Server® objects, such as data centers, clusters, hosts, and virtual machines
• Create and modify a standard switch
• Modify a distributed switch
• Create a VMware vSphere® VMFS datastore
• Use a wizard or a template to create a virtual machine
• Migrate a virtual machine with VMware vSphere® vMotion® and VMware vSphere® Storage vMotion®

If you cannot complete all of these tasks, VMware recommends that you complete the VMware vSphere: Install, Configure, Manage and VMware vSAN: Deploy and Manage courses before enrolling in VMware vSAN: Troubleshooting.

Outline

1. Course Introduction

• Introductions and course logistics
• Course objectives

2. vSAN Architecture

• Describe the vSAN architecture and components
• Describe the policy-driven, object-based vSAN storage environment
• Describe the CLOM, DOM, LSOM, CMMDS, and RDT vSAN software components
• Explain the relationship between objects and components
• Determine how specific storage policies affect components
• Describe component placement

3. Troubleshooting Methodology

• Use a structured approach to solve configuration and operational problems
• Apply troubleshooting methodology to logically diagnose faults and optimize troubleshooting efficiency

4. Troubleshooting Tools

• Discuss VMware Skyline Health and the associated service
• Describe the use of VMware Skyline Health to identify and correct problems in VMware vSAN
• Apply information presented by vSAN Health online towards problem-solving
• Use vsantop to view vSAN performance metrics
• Discuss the ways to run commands from the vCenter Server and ESXi command lines
• Discuss the ways to access vSphere ESXi Shell
• Use commands to view, configure, and manage your vSphere environment
• Discuss the esxcli vsan namespace commands
• Discuss when to use Ruby vSphere Console (RVC) commands
• Explain which log files are useful for vSAN troubleshooting
• Use log files to help troubleshoot vSAN problems