Toolkit Decision Framework: Choosing a Data Replication Architecture for Disaster Recovery

ID Number: G00148136

2 May 2007

Donna Scott

Choosing the right disaster recovery strategy is a critical decision for all infrastructure and operations leaders, with data replication a key component. We present the available data replication architectures and their pros and cons, enabling I&O leaders to make a solid needs-based decision.

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Table of Contents

Analysis

1.0

What You Need to Know

2.0

Four Data Replication Architectures

2.1		Application/Transaction-Level Replication
2.2		Database Replication (Log Shipping)
2.3		Storage Controller-Based Replication
2.4		Host-Based File and Volume Replication

3.0

Disaster Recovery Strategies

3.1

Survey Data

4.0

Data Recovery Architectures

5.0

Data Replication Vendors

6.0

Application/Transaction-Level Alternatives

6.1		Pros and Cons
6.2		Case Study

7.0

Database Log-Based Replication

7.1		Pros and Cons
7.2		Case Study

8.0

Storage Controller-Based Alternatives

9.0

Synchronous vs. Asynchronous, and Both

9.1

Case Study

10.0

Host-Based File and Volume Replication

10.1		Pros and Cons
10.2		Other Recovery Technologies

Recommended Reading

List of Figures

	Figure 1.	Disaster Recovery Strategies

	Figure 2.	Disaster Recovery Strategies — Survey Data

	Figure 3.	Data Recovery Architectures: Redundant Everything

	Figure 4.	Data Replication for Disaster Recovery: Who's in the Game?

	Figure 5.	Data Replication Alternatives: Application and Transaction Level

	Figure 6.	Best Practice Case Study: UPS Architects for 100% Availability

	Figure 7.	Data Replication Alternatives: DBMS Log-Based Replication

	Figure 8.	Case Study: Financial Services Company — DBMS Log-Based Replication

	Figure 9.	Data Replication Alternatives: Storage Controller-Based

	Figure 10.	Case Study — Real-Time Infrastructure for Disaster Recovery

	Figure 11.	Data Replication Alternatives: Host-Based File and Volume Replication

Disaster Recovery
Information Architecture
Data Management and Integration
IT Infrastructure and Operations Roles
Replication

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Resource Id: 504785