Contents

Title and Copyright Information

Preface

• Documentation Accessibility
• Prerequisites for Using this Document
• Conventions
• Available Documentation

1 Introduction

• Failure and Recovery Scenarios
• Recommended Preparations

2 Stabilizing the Situation

• Stopping Archiving and Recycling Processes
  • Stop Archiving
  • Stop Recycling
• Preserving Unarchived Data
  • Back Up Unarchived Files
• Preserving Configuration and State Information
  • Save the SAM-QFS Configuration

3 Restoring the SAM-QFS Configuration

• Restoring the Configuration from Backup Copies and/or SAMreports
  • Restore the Configuration from Backup Files or SAMreports
• Restoring the Configuration Without Backup Information

4 Recovering File Systems

• Recreating the File System
  • Recreate the File System Using Backup Configuration Files and the sammkfs Command
• Restoring Directories and Files
  • Restoring Files and Directories from a samfsdump (qfsdump) Recovery Point File
    • Restore the Lost File System from a Recovery Point File
    • Restage Archived Files If Required
    • Identify Damaged Files and Locate Replacement Copies
    • Identify Files that Were Archived After the Recovery Point Was Created
    • Restore the Damaged and/or Missing Files
  • Restoring Files and Directories from Archival Media without a Recovery Point File

5 Recovering Lost and Damaged Files

• Recovering Files Using a Recovery Point File
• Recovering Files Using Archiver Log Entries
  • Restore Lost and Damaged Regular Files
  • Restore Lost and Damaged Segmented Files
  • Restore Lost and Damaged Volume Overflow Files
• Recovering Damaged Archive Copies

6 Finishing Up

• Restoring Archiving File Systems to Normal Operation
  • Enable Archiving
  • Enable Recycling
• Preserving the New Configuration Information
  • Save the Newly Restored SAM-QFS Configuration

A Understanding the Archiver Log

B Glossary of Equipment Types

• Recommended Equipment and Media Types
• Other Equipment and Media Types

C Product Accessibility Features

Glossary