About this Course

The course provides detail guidance information for all personnel who will be participating in the Recovery of DB2 for z/OS Databases and Applications. Recovery detail includes Unit of Work Recovery, Current point in time and prior point in time recovery, Recovery analysis, Recovery from I/O errors, out of space conditions, building and implementing DB2 Recovery related utilities. Both data sharing and non-data sharing recovery considerations are covered.

Audience Profile

DB2 Database and System Administrators who will be managing and recovering DB2 Databases.

At Course Completion

Upon successful completion of this course, the student will be able to:

• Describe the DB2 Recovery Environment
• Develop and implement Backup and Recovery procedures
• Analyze failures and identify what type of recovery procedure is appropriate
• Perform media recovery of their database objects
• Perform prior-point-in-time recovery
• Display a working knowledge of the DB2 stand-alone utilities

Prerequisites

DB3010 DB2 for z/OS Database Administration or equivalent experience. A basic understanding of DB2 for z/OS utilities is assumed.

Course Outline

1. DB2 Recovery Environment Overview

• DB2 Recovery Related System Objects
  • Bootstrap Dataset (BSDS)
  • DB2 Logs
  • Units of Recovery
  • Log Records
  • DB2 Catalog Objects
  • DB2 Directory
• Types of Recovery
• Backup & Recovery Procedures

2. DB2 Recovery Related Commands

• Database Commands
  • Starting Databases
  • Monitoring Databases
  • Restricted Statuses
  • Database Use
  • Database Locks
  • CLAIMERS
  • Pages in Error
  • Stopping Databases
• Thread & Related Commands
  • Display Threads
  • Terminate Threads
  • Reset Indoubt
  • Recover Indoubt
  • Display DDF
• Logging Environment Commands
  • Display Log
  • Set Log to modify logging environment
• Monitoring using DB2 Commands

3. Preparing for Recovery

• Copy Utility
  • Data Checking
  • Copy Pending Status
  • Turn Off Copy Pending
  • Conditional Image Copies
  • DFSMSdss Concurrent Copy
  • Using FlashCopy
  • Copy Phases
  • Restart Considerations
  • Copy Parallelism
• QUIESCE Utility
• LISTDEF & TEMPLATE
  • Copy & Quiesce with Listdef
  • Template Symbolics
• Merging Image Copies
• COPYTOCOPY Utility
• Index Copies
• OPTIONS
• PREVIEW
• MODIFY RECOVERY Utility
• Recommendations

4. Database Recovery

• Backup and Recovery Procedures
• Recovery Scenario
  • What Happens During Recovery
• Complete Recovery Cycles
• Recovery Information
• REPORT Utility
  • Problem Analysis
• Recovery Pending Status
• RECOVER Utility
  • Recovery Phases
  • RECOVER to Current Point in Time
  • Recover a Partition
  • Recover to a prior Point in Time
  • Recover a Set to a Point in Time
  • Recover to Image Copy
  • Recovering Indexes
• Rebuilding Indexes
• Complete Referential Set Recovery
• Types of Recovery
  • Log-Only Backout
  • ERROR RANGE Recovery
  • LPL Errors
  • Invalid LOBs
  • Down-Level Pageset
  • LOGONLY Recovery
• REPAIR Utility
• MODIFY Utility
  • MODIFY Syntax
• Recommendations

5. Stand-alone Utilities

• Print Log Map Utility
  • DSNJU004 Utility
  • Report output analysis
• Recovery Log Contents
  • DSN1LOGP Utility
  • Control Statements
  • Report output analysis
  • When to use DSN1LOGP
• DSN1COPY
  • Usage
  • Requirements
  • Copying using DSN1COPY
  • Restore using DSN1COPY
  • Validation
• Stand-alone Utility Recommendations

6. Unloading Data

• UNLOAD Utility
  • Usage
  • Concurrency
  • Control Statements
  • Output
• DSNTIAUL Sample Application
  • Usage
  • Concurrency
  • Parameters
  • Output
• Recommendations

7. Recovery Scenarios Unique to a Data Sharing Environment

• Data Sharing Overview
• Logging Environment
• Recovery from CF failures
  • Group Buffer Pools
  •  
  • Lock Structures
  • SCA Structure
• Recommendations