Disaster recovery with DB2 UDB for z/OS / [Paolo Bruni ... et al.].

Format:

Book

Contributor:

Bruni, Paolo.

International Business Machines Corporation. International Technical Support Organization.

Series:

IBM redbooks.

IBM redbooks

Language:

English

Subjects (All):

Data recovery (Computer science).

Electronic data processing--Backup processing alternatives.

Electronic data processing.

IBM Database 2.

z/OS.

Physical Description:

xxxii, 492 p. : ill.

Edition:

1st ed.

Place of Publication:

[S.l.] : IBM, International Technical Support Organization, c2004.

Language Note:

English

Contents:

Front cover

Contents

Tables

Figures

Examples

Notices

Trademarks

Preface

The contents of this redbook

The team that wrote this Redbook

Become a published author

Comments welcome

Part 1 The whole picture

Chapter 1. Business continuity

1.1 Business Continuity definition

1.1.1 Business Continuity and Disaster Recovery

1.1.2 What is a disaster?

1.1.3 How to protect from a disaster

1.2 IBM Business Continuity Strategy

1.2.1 Disaster Recovery solutions

1.3 General considerations on disaster recovery

1.3.1 The lessons from September 11 and the requirements evolution

1.4 Business Continuity and Recovery Services

Chapter 2. DB2 disaster recovery

2.1 Introduction to DB2 disaster recovery solutions

2.1.1 Conventional transport

2.1.2 Remote Copy Services

2.1.3 Remote Copy and DB2

2.1.4 Data replication

2.2 Data consistency

2.2.1 The rolling disaster

2.2.2 Consistency groups

2.3 DR solutions in terms of RTO and RPO

2.4 DB2's disaster recovery functions

2.4.1 Backup

2.4.2 Restart

2.4.3 Recover

2.5 Determining the RBA for conditional restarts

2.5.1 Choosing an RBA for normal conditional restart

2.5.2 Choosing an RBA value for SYSPITR

2.6 What if DB2 utilities were running?

2.6.1 LOAD

2.6.2 REORG

Part 2 Disaster recovery major components

Chapter 3. Traditional recovery

3.1 Overview

3.2 Planning for disaster recovery

3.2.1 Dump and restore of DB2 environment

3.2.2 Consistent point-in-time recovery

3.2.3 Continuous archive log transfer

3.3 Recovery procedures

3.3.1 Establish the environment

3.3.2 Recover the BSDS

3.3.3 Restart DB2 (conditional restart)

3.3.4 Recover DB2 system data

3.3.5 Prepare subsystem for use

3.4 Recovering the BSDS

3.5 Restart DB2 (Conditional Restart)

3.6 Considerations.

Chapter 4. DB2 Tracker

4.1 Overview

4.2 Tracker site recovery

4.2.1 Setting up the tracker site

4.2.2 Establishing recovery cycle at the tracker site

4.2.3 How to take over in case of disaster

4.3 Considerations

4.3.1 Restrictions on tracker site

4.3.2 Pros and cons

Chapter 5. ESS FlashCopy

5.1 Introducing FlashCopy

5.2 How FlashCopy works

5.3 DFSMSdss utility

5.3.1 COPYVOLID parameter

5.3.2 DUMPCONDITIONING parameter

5.3.3 FCNOCOPY and FCWITHDRAW parameters

5.4 Incremental FlashCopy

5.5 FlashCopy Consistency Group

Chapter 6. SMS copy pools and DB2 point in time recovery

6.1 DFSMS 1.5 enhancements

6.1.1 DFSMShsm Fast Replication

6.1.2 DFSMS copy pools

6.1.3 Copy pool backup storage group type

6.2 Preparing for DFSMShsm Fast Replication

6.3 DB2 enhancements

6.3.1 Other changes to support system level point-in-time recovery

6.4 DB2 PITR using Fast Replication

6.4.1 DB2 BACKUP SYSTEM utility

6.5 DB2 Recover using Fast Replication backups

6.5.1 DB2 RESTORE SYSTEM utility

6.5.2 Running RESTORE SYSTEM

Chapter 7. Peer-to-Peer Remote Copy

7.1 Peer-to-Peer Remote Copy (PPRC)

7.1.1 How PPRC works

7.1.2 DB2 and critical attributes

7.1.3 Rolling disaster with PPRC alone

7.1.4 Consistency grouping and messages issued

7.2 PPRC Extended Distance (PPRC-XD)

7.2.1 Characteristics

7.2.2 Creating a Consistency Group with PPRC-XD

7.3 Asynchronous PPRC: Global Mirror

7.3.1 Prerequisites for Asynchronous PPRC

7.3.2 Terminology

7.3.3 Asynchronous PPRC: How it works

7.3.4 Prerequisites for Asynchronous PPRC

7.4 PPRC feature dependencies

Chapter 8. eXtended Remote Copy

8.1 Introduction

8.1.1 XRC configurations

8.1.2 XRC hardware requirements

8.1.3 Dynamic workload balancing

8.1.4 Planned outage support.

8.1.5 Unplanned outage support for ESS

8.2 XRC components

8.2.1 Primary storage subsystem

8.2.2 Secondary storage subsystem

8.2.3 System Data Mover

8.2.4 Address spaces

8.2.5 Journal, control, and state data sets

8.2.6 An XRC session

8.2.7 Utility devices

8.2.8 An XRC storage control session

8.3 XRC operation: data flow

8.4 Details on Consistency Groups

8.5 XRC considerations for DB2 disaster recovery

Part 3 General solutions for disaster recovery

Chapter 9. Split Mirror

9.1 Split Mirror

9.1.1 Normal operation

9.1.2 Suspend PPRC links

9.1.3 Perform backup to preserve the environment

9.1.4 Re-establish the PPRC links

9.1.5 Suspend pairs

9.1.6 Resume logging

9.1.7 Dump to safety volumes

9.2 Considerations

Chapter 10. FlashCopy Consistency Group

10.1 Solution overview

10.1.1 How it works

10.2 Design the solution

10.2.1 Define backup environment requirements

10.2.2 Define recovery environment requirements

10.2.3 Define testing environment requirements

10.2.4 Define backup procedure

10.2.5 Define off-site procedure and timing

10.2.6 Define the restore procedure

10.2.7 Define automation requirements

10.3 Implement the solution

10.3.1 Create FlashCopy Consistency Group task

10.3.2 Create FlashCopy Consistency Group Created task

10.3.3 Create ICKDSF REFORMAT jobs

10.3.4 Create DFSMSdss DUMP jobs

10.3.5 Create ICKDSF INIT jobs

10.3.6 Create DFSMSdss RESTORE jobs

10.3.7 Create a Disaster Recovery Procedure (DRP)

10.4 Run the solution

10.4.1 Execute periodic disaster recovery testing

10.4.2 Maintain the solution

10.5 Additional considerations

Chapter 11. Global Copy PPRC-XD

11.1 General PPRC-XD Global Copy Configuration

11.2 Creating your Consistency Group

11.3 Applying additional log to a Consistency Group.

11.3.1 How to verify a log

11.4 Considerations

Chapter 12. Global Mirror PPRC

12.1 Overview

12.1.1 Terminology

12.1.2 How it works

12.1.3 Restrictions

12.2 Design the solution

12.2.1 Define primary environment

12.2.2 Define recovery environment

12.2.3 Define testing environment requirements

12.2.4 Select the interface to PPRC commands

12.2.5 Define session management commands

12.3 Implement the solution

12.3.1 Establish Async-PPRC data paths

12.3.2 Establish PPRC paths to the remote site

12.3.3 Establish PPRC-XD pairs

12.3.4 Establish FlashCopy pairs at the remote site

12.3.5 Define the Asynchronous PPRC session

12.3.6 Add volumes to the session

12.3.7 Start the session

12.4 Run the solution

12.4.1 Add/remove volumes to/from the session

12.4.2 Modify the session

12.4.3 Pause/terminate the session

12.4.4 Test the solution

12.5 Monitor Asynchronous PPRC

12.5.1 Determine the status of Asynchronous PPRC

12.5.2 Query the status of the volumes in the session

12.5.3 Query the number of volumes that are out-of-sync

12.5.4 Query the status of the FlashCopy volumes after an outage

12.5.5 Asynchronous PPRC Session Manager

12.5.6 RMF enhancements: Performance statistics reports for ESS links

12.6 Recovery procedures

12.6.1 Unplanned outage and switch to the remote site

12.6.2 Planned outage

12.6.3 Considerations

Chapter 13. XRC: Global Mirror for z/OS

13.1 Solution overview

13.2 Design the solution

13.2.1 Verify hardware requirements

13.2.2 Verify software requirements

13.2.3 Select volumes for remote copy

13.2.4 The ERRORLEVEL parameter

13.2.5 Verify SDM requirements

13.2.6 Verify the primary ESS subsystems

13.2.7 Verify the secondary storage subsystem

13.2.8 Determine SDM-primary site bandwidth.

13.2.9 Select Utility device mode

13.2.10 Understand XADDPAIR processing

13.3 Define XRC management

13.3.1 Issuing XRC TSO commands

13.3.2 XSTART command

13.3.3 XADDPAIR command

13.3.4 XQUERY command

13.3.5 XDELPAIR command

13.3.6 XEND command

13.3.7 XSUSPEND command

13.3.8 XSET command

13.3.9 XRECOVER command

13.3.10 XADVANCE command

13.3.11 XCOUPLE command

13.3.12 ANTRQST application programming interface

13.4 Define XRC automation

13.4.1 JCL-/REXX generation

13.4.2 Error recovery

13.4.3 GDPS/XRC

13.5 Implement the solution

13.5.1 Allocate the Journal data set

13.5.2 Allocate the control data set

13.5.3 Allocate the state data set

13.5.4 Allocate the master data set

13.5.5 Implement XRC commands and procedures

13.5.6 Implement XRC security

13.5.7 XRC testing

13.6 Run the solution

13.6.1 HCD reconfiguration restriction

13.6.2 XRC volume format, track, and access mode restrictions

13.6.3 ICKDSF and XRC volumes

13.6.4 XRC Performance monitor

13.6.5 Reporting on the XRC environment

13.6.6 XRC diagnostic aids

13.7 Database recovery with XRC

13.8 Using XRC with FlashCopy

Chapter 14. Geographically Dispersed Parallel Sysplex

14.1 GDPS overview

14.1.1 GDPS/PPRC

14.1.2 GDPS/XRC

14.1.3 Functional highlights

14.1.4 IBM Global Services offerings

14.2 GDPS-Metro Solution

14.2.1 Initial setup

14.2.2 The Freeze Policy

14.2.3 After Failover to Recovery Site

14.2.4 Considerations about GDPS

14.3 Metro/Global Mirror solution

14.3.1 Scenario 1

14.3.2 Scenario 2

Part 4 Implementing disaster recovery scenarios

Chapter 15. Set Log Suspend - FlashCopy - More Log - Restore System Log Only

15.1 Description of the scenarios

15.1.1 FlashCopy with DB2

15.1.2 RESTORE SYSTEM LOGONLY

15.2 Recovery procedures.

15.2.1 Prepare for disaster recovery.

Notes:

"November 2004."

"SG24-6370-00."

Includes bibliographical references and index.

OCLC:

61323058