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IBM Geographically Dispersed Parallel Sysplex
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Geographically Dispersed Parallel Sysplex (GDPS) is a family of business continuity and disaster recovery solutions based on IBM mainframe technology. It is a service offering supplied by IBM, rather than a software product. GDPS runs as a Netview application, making full use of SA390. It monitors all the LPARs in the Sysplex, both OSs and Coupling Facilities, it also monitors the DASD whether PPRC or XRC is being used to mirror the data. The GDPS family includes:
- GDPS/HyperSwap Manager. It is a business continuity solution based on a syncronous mirroring technology (PPRC). It implements the HyperSwap technology that allow an application-transparent swap of storage devices.
- GDPS/PPRC. It is a business continuity and disaster recovery solution based on a syncronous mirroring technology (PPRC). It implements the HyperSwap technology as well as automation facilities for the restart of operating systems in case of CPU failure.
- GDPS/XRC. It is a disaster recovery solution based on an asyncronous mirroring technology (XRC). It implements automation facilities for the restart of operating systems in case of CPU failure.
- GDPS/GM. It is a disaster recovery solution based on an asyncronous mirroring technology (IBM Global Mirror). It implements automation facilities for the restart of operating systems in case of CPU failure.