4.7.2 The Diagnostic ISO File

Use the diagnostic ISO file (diagnostics.iso) to diagnose and recover from serious problems.

You may need to boot a server using the diagnostic ISO file to diagnose and recover from serious problems. For example, when the system is inaccessible due to system damage or damage to the CELLBOOT USB flash drive.

Use this facility only as directed to perform specific documented maintenance tasks, or under the guidance of Oracle Support Services.

• Booting a Server using the Diagnostic ISO File
  Use this procedure to boot an Oracle Exadata Storage Server or Oracle Exadata Database Server using the diagnostic ISO file (diagnostics.iso).