IBM System Storage Business Continuity Solutions Overview

Chapter 5. Backup and Restore 71

Strategies and operations description

The data at primary and off-site location are fully synchronized utilizing a high-bandwidth

connection. The two systems are advanced coupled, allow an automated switchover from one

site to the other when required. A Tivoli Storage Manager setup is installed at each location

and run independently, creating dual production systems. Each Tivoli Storage Manager

server is protected using BC Tier 2 or BC Tier 3 technology. See Figure 5-14.

Figure 5-14 BC Tier 6 - Dual production Tivoli Storage Manager servers running in a zero data loss

environment

5.2.3 Integrated solution capabilities of IBM Tivoli Storage Manager

Additional optional IBM Tivoli Storage Manager products are available that provide integrated

solution capabilities. These include:

򐂰 IBM Tivoli Storage Manager for Copy Services - Data Protection for Exchange

This provides integration of Tivoli Storage Manager with VSS providers on supported

storage systems to make fast, snapshot-based backups of Microsoft Exchange

databases. The snapshot can then be copied to a Tivoli Storage Manager server for longer

term, policy-managed storage. Optionally, the Tivoli Storage Manager backup of the

snapshot can be performed by a separate server, freeing up CPU resources on the

production Exchange server, known as offloaded backup. On a SAN Volume Controller,

instant restore is possible, where a snapshot can be rapidly restored back to the original

source disks using the hardware FlashCopy restore.

TSM Database

DB

TSM Server

1

TSM Clients

TSM Database

DB

D

R

M

TSM Server

2

TSM Clients

D

R

M

Synchronous Write Environment

Zero Data Loss

Cost

Complexity

Recovery T ime

Production Site

Production Site Mirror

Option 2: Manual vaulting of TSM database

backups and copy storage pool data

Option 1: Virtual volumes transfer

electronically copies of TSM

database backups and copy storage

pool data