IBM DS6000 Manual Do Utilizador

Chapter 32. GDPS overview 

The GDPS family of System z Business Continuity solutions consists of two major offering 
categories, and each category has several subofferings. Each GDPS solution is delivered 
through IBM Global Services, and is specifically tailored to fit a specific set of client recovery 
needs, budgetary requirements, physical distance and infrastructure, and other factors. 

The three major categories of GDPS solutions are:

򐂰

GDPS/PPRC solutions, based on Metro Mirror. Metro Mirror was formerly known as 
Peer-to-Peer Remote Copy (PPRC).

򐂰

GDPS/XRC solutions, based on z/OS Global Mirror. z/OS Global Mirror was formerly 
known as Extended Remote Copy (XRC). 

򐂰

GDPS/GM (Global Mirror) solutions, based on Global Mirror.

The subofferings within these three GDPS major categories include the following:

򐂰

GDPS/PPRC

– GDPS/PPRC, a Tier 7 solution
– GDPS/PPRC HyperSwap Manager, a Tier 6 solution
– RCMF/PPRC, a remote copy management solution for PPRC

򐂰

GDPS/XRC

– GDPS/XRC, a Tier 7 solution
– RCMF/XRC, a remote copy management solution for XRC

Certain of the above GDPS offerings can also be combined into 3-site GDPS solutions, 
providing Tier 7 recoverability in a multi-site environment.

GDPS/PPRC is designed to manage and protect IT services by handling planned and 
unplanned exception conditions, and maintain data integrity across multiple volumes and 
storage subsystems. By managing both planned and unplanned exception conditions, 
GDPS/PPRC can help to maximize application availability and provide business continuity.

GDPS/PPRC is capable of the following attributes:

򐂰

Near continuous availability solution