Setting Up I/O Fencing

This chapter describes VCS I/O fencing, its components, and how it works (see I/O Fencing) and procedures for setting up I/O fencing (see Setting up I/O fencing).

In addition, the chapter provides:

• Troubleshooting information
  See Troubleshooting I/O Fencing
• Information for testing many data disks (with the vxfentsthdw utility), whether they are set up in disk groups or listed in a file
  See vxfentsthdw Options
• Scenarios in which I/O fencing functions to prevent data corruption
  See How I/O Fencing Works in Different Event Scenarios
• A description of the vxfenadm command, which can be used to test and troubleshoot I/O fencing configurations
  See The vxfenadm Utility