Notices

Preface

Part 1: Overview

1. Overview of Real Time SAN Replication

1.1 About Real Time SAN Replication

1.2 Importing data to the remote site

1.2.1 All synchronous method

1.2.2 All asynchronous method

1.2.3 Hybrid method

1.3 Characteristics of the individual processing methods

1.4 Prerequisite platforms and products

Part 2: All Synchronous Method, All Asynchronous Method, and Hybrid Method

2. Points to Consider when Designing a System

2.1 Selecting a protection mode (not applicable to the all asynchronous method)

2.2 Points to consider when setting up a HiRDB environment

2.2.1 Items that must be the same for the main site and the remote site

2.2.2 Items to be changed at the remote site

2.2.3 Specifying system definition operands

2.3 Points to consider when setting up a RAID Manager environment

2.4 Points to consider when creating HiRDB file system areas

2.4.1 File classifications

2.4.2 Notes on creating HiRDB file system areas

2.4.3 HiRDB file system area configuration examples

2.5 Points to consider when designing volumes

2.5.1 Points to consider when designing paired volumes

2.5.2 Points to consider when designing paired logical volumes

2.5.3 Points to consider when designing paired logical volume groups

2.5.4 Paired volume configuration examples

2.5.5 System configuration example

3. Building a System

3.1 Building a disaster recovery system

3.2 Tasks required to build a disaster recovery system

3.2.1 Building the RAID Manager environment

3.2.2 Building the HiRDB environment at the main site

3.2.3 Checking the HiRDB configuration at the main site

3.2.4 Taking control over the paired logical volume groups (transfer control from the main site to the remote site)

3.2.5 Checking the status of paired logical volume groups at the remote site

3.2.6 Building the HiRDB environment at the remote site

3.2.7 Checking the HiRDB configuration at the remote site

3.2.8 Taking control over the paired logical volume groups (transfer control from the remote site to the main site)

3.2.9 Checking the status of the paired logical volume groups at the main site

4. Operations at the Main Site

4.1 HiRDB startup method

4.2 Notes on operation when using the hybrid method

4.2.1 When database updates must be synchronized between the main site and the remote site

4.2.2 Notes on initializing a database

4.3 Notes on executing RAID Manager commands

5. Switching Over to the Remote Site

5.1 Switching to the remote site

5.1.1 Ways to switch sites

5.1.2 Site switchover methods that can be used while the main site is running

5.1.3 Site switchover methods that can be used when a disaster occurs at the main site

5.1.4 Results of switching sites to perform maintenance

5.1.5 Results of switching sites in the event of a disaster

5.2 Switching sites to test disaster preparedness

5.3 Switching sites to perform maintenance

5.4 Switching sites in the event of a disaster

5.5 Transaction information file

6. Error Handling

6.1 HiRDB's actions when an error occurs during update copy

6.2 Collecting synchronization point dumps (when using the hybrid method)

6.3 Error-handling methods

6.4 Handling of failure to link to RAID Manager

6.5 Handling when paired logical volume group names are missing from the RAID Manager configuration definition

6.6 Handling of route errors

6.7 Handling of errors on the primary volume

6.8 Handling of errors on the secondary volume

6.9 Handling a disaster at the main site that occurred while it was recovering from an error

7. Changing the Pair Logical Volume Configuration

7.1 Situations requiring changes in the paired logical volume configuration

7.2 Adding a paired logical volume group

7.3 Adding a paired logical volume to an existing paired logical volume group

7.4 Changing the name of a paired logical volume group

7.5 Moving a paired logical volume to a new paired logical volume group

7.6 Moving a paired logical volume to an existing paired logical volume group

7.7 Deleting a paired logical volume

8. Relationships to Other Facilities

8.1 Facilities that require special attention

8.2 Notes on using the inner replica facility

8.3 Notes on using the system switchover facility

8.3.1 Standby system switchover facilities

8.3.2 Standby-less system switchover (1:1) facility

8.3.3 Standby-less system switchover (effects distributed) facility

8.3.4 Setting up cluster software

8.3.5 Standby system operation

8.4 Notes on using the security audit facility

8.5 Notes on using the automatic log unloading facility

8.6 Notes on using the facility for monitoring the free area for system log files

8.7 Notes on using a shared table (applicable only to the hybrid method)

Appendixes

A. Examples of System and Configuration Definitions

A.1 Hybrid method

B. Sample Shell Program

C. Notes on Updating HiRDB

C.1 When using the all synchronous, all asynchronous, or hybrid method

Index

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