IBM TotalStorage Enterprise Storage Server : PPRC extended distance / IBM, International Technical Support Organization.

Format:

Book

Author/Creator:

International Business Machines Corporation, International Technical Support Organization Staff, Corporate Author.

Contributor:

International Business Machines Corporation. International Technical Support Organization.

Series:

IBM redbooks.

IBM redbooks

Language:

English

Subjects (All):

Storage area networks (Computer networks).

Data recovery (Computer science).

Physical Description:

xviii, 160 p. : ill.

Edition:

1st ed.

Place of Publication:

San Jose, Calif. : IBM Corp., International Technical Support Organization, 2002.

Language Note:

English

Contents:

Front cover

Contents

Figures

Tables

Notices

Trademarks

Preface

The team that wrote this redbook

Terminology

Notice

Comments welcome

Chapter 1. Data integrity and availability

1.1 What is disaster recovery?

1.2 Business objectives for disaster recovery

1.3 Tiers of disaster recovery

1.4 IBM TotalStorage solutions for disaster recovery

Chapter 2. PPRC Introduction

2.1 PPRC Extended Distance

2.2 PPRC Overview

2.3 PPRC operation methods

2.4 Synchronous PPRC (PPRC-SYNC)

2.4.1 Data consistency at the recovery site

2.4.2 Application availability

2.4.3 Write operations response time

2.4.4 Distance factor

2.4.5 PPRC-SYNC Positioning

2.5 PPRC volume states

2.6 Synchronous PPRC using static volumes

2.6.1 How PPRC-SYNC can be used over long distances

2.6.2 Data consistency at the recovery site

2.6.3 Application availability

2.6.4 Write operations response time

2.6.5 Distance factor

2.6.6 PPRC using static volumes - positioning

2.6.7 PPRC with static volumes - implementation examples

2.7 PPRC Extended Distance (PPRC-XD)

2.7.1 How PPRC Extended Distance works

2.7.2 Data consistency at the recovery site

2.7.3 Application availability

2.7.4 Write operations response time

2.7.5 Distance factor

2.7.6 PPRC Extended Distance positioning

2.7.7 PPRC-XD implementations

Chapter 3. PPRC Extended Distance characteristics and management

3.1 PPRC options

3.1.1 Basic characteristics

3.1.2 PiT Implementation basics

3.2 PPRC-XD states change logic

3.3 Managing PPRC Extended Distance

3.3.1 Establishing XD pairs using TSO commands

3.3.2 Catch-up (go-to-SYNC) using TSO

3.3.3 CESTPAIR command parameter values

3.3.4 Establishing XD pairs using the Web user interface

3.3.5 Catch-up (go-to-SYNC) and suspend using the WUI.

3.3.6 Web user interface options

3.4 Querying PPRC-XD

3.4.1 CQUERY command

3.4.2 rsQueryComplete command

3.4.3 rsQuery command

3.4.4 The Information Panel of the Web user interface

Chapter 4. PPRC configuration and data consistency

4.1 PPRC configuration

4.1.1 Establishing concepts

4.1.2 Defining paths between two LSSs

4.1.3 Displaying path information

4.2 Building consistency

4.2.1 Consistency groups

4.2.2 Defining consistency groups using TSO

4.2.3 Defining consistency groups using the Web user interface

4.2.4 Freezing operation

4.2.5 Freeze operation with TSO

4.2.6 Freeze operation with the Web user interface

Chapter 5. PPRC Extended Distance implementation and use

5.1 PPRC-XD point-in-time consistency

5.2 PPRC-XD for application recovery

5.2.1 Starting with a catch-up of the volumes

5.2.2 PPRC-XD PiT within the synchronous range

5.2.3 Starting with the quiesce of the application

5.3 PPRC-XD solutions and positioning

5.3.1 Functional positioning

5.3.2 Remote data migration

5.3.3 Transmission of database logs

5.3.4 Off-site backups

5.3.5 Mixed environment (XD and SYNC)

5.3.6 Application performance positioning

5.3.7 Initial establish for a large number of volumes

5.4 PPRC-XD implementation considerations

5.4.1 More data can be PPRC protected

5.4.2 Consistency management

5.4.3 Automation

5.4.4 Bandwidth management

5.5 PPRC connectivity

5.5.1 PPRC supported distances

5.5.2 PPRC channel extender support

5.5.3 PPRC Dense Wave Division Multiplexor (DWDM) support

5.6 PPRC-XD requirements

Chapter 6. Using the WUI and the CLI to manage PPRC-XD

6.1 ESS Specialist

6.2 Creating ESS Copy Services tasks

6.3 Tasks for a PiT backup with PPRC-XD

6.3.1 Establish paths

6.3.2 Establish PPRC-XD pair - initial copy.

6.3.3 Establish PPRC-SYNC pair - go-to-SYNC and suspend

6.3.4 Quiesce the application write activity

6.3.5 Re-synchronize PPRC pair

6.3.6 Freeze

6.3.7 Resume application write activity

6.3.8 FlashCopy PPRC target

6.3.9 Reestablish paths

6.3.10 Reestablish PPRC-XD pairs

6.3.11 Additional tasks

6.4 Using the CLI for a PiT backup with PPRC-XD

6.4.1 Establish paths

6.4.2 Establish PPRC-XD pair - initial copy

6.4.3 Establish PPRC-SYNC pair - go-to-SYNC and suspend

6.4.4 Quiesce the application write activity

6.4.5 Re-synchronize PPRC pair

6.4.6 Freeze

6.4.7 Resume application write activity

6.4.8 FlashCopy PPRC target

6.4.9 Reestablish paths

6.4.10 Reestablish PPRC-XD pairs

6.4.11 Consistency group created

6.4.12 Creating the script

Appendix A. ESS Copy Services creation of tasks

A.1 ESS Copy Services tasks: step-by-step

A.1.1 Establish paths

A.1.2 Establish PPRC XD pair - initial copy

A.1.3 Establish PPRC SYNC pair - go-to-SYNC and suspend

A.1.4 Quiesce the application write activity

A.1.5 Re-synchronize PPRC pair

A.1.6 Freeze

A.1.7 Resume application write activity

A.1.8 FlashCopy PPRC target

A.1.9 Reestablish paths

A.1.10 Reestablish PPRC XD pairs

A.1.11 Withdraw FlashCopy pair

A.1.12 Suspend PPRC pair

A.1.13 Terminate PPRC pair

A.1.14 Consistency-group-created

A.2 Installing the CLI

A.2.1 CLI supported systems

A.2.2 Installing procedure

Appendix B. Additional examples of PiT and data migration solutions

B.1 Data migration for a large data center

B.1.1 Planning the migration

B.1.2 Preparing the volume pairs and dumping the data

B.1.3 Restoring the data and re-synchronizing the pairs

B.2 PiT backup solution

B.2.1 Considerations when using PPRC-XD

B.2.2 Distance considerations.

B.2.3 Other planning considerations

B.2.4 Impending disasters

Appendix C. PPRC-XD Managing in the TSO environment

C.1 Managing with TSO commands

C.1.1 PPRC-XD Initialization and monitoring

C.1.2 Catch-up transition

C.1.3 Build consistency and freeze

C.1.4 Resume application write activity

C.1.5 Save checkpoint and resume PPRC-XD

C.2 Path failures scenario

Appendix D. PPRC-XD operation for z/VM and VSE/ESA users

D.1 ICKDSF PPRC command functions

D.2 PPRCOPY ESTPATH

D.3 PPRCOPY DELPATH

D.4 PPRCOPY ESTPAIR

D.5 PPRCOPY DELPAIR

D.6 PPRCOPY SUSPEND

D.7 PPRCOPY RECOVER

D.8 PPRCOPY QUERY

Appendix E. PPRC with static volumes implementations

PPRC with static primary volumes

Remote data migration

Transmission of database log files

Remote backup

Related publications

IBM Redbooks

Other resources

Referenced Web sites

How to get IBM Redbooks

IBM Redbooks collections

Index

Back cover.

Notes:

"SG24-6568-00."

Includes bibliographical references (p. 155) and index.

OCLC:

560314463