IntelliMagic Vision in GDPS Environments

Gilbert

By Gilbert Houtekamer, Ph.D.

GDPS is IBM’s most advanced Business Continuity solution for the zSeries platform. Its design leverages the availability of enough data processing components in multiple sites, such that IT services may continue even if one site suffers a complete failure. All critical data, disk or tape resident, is mirrored between sites using synchronous and/or asynchronous remote copy.

GDPS is about maximizing availability. However, as those in both performance and business can attest, availability is not always a binary event (such as a disaster). For example, if critical data is available on your Disk Subsystems but poor I/O response times are impacting your applications, are you meeting your availability objectives? The data storage and data replication involved in these types of environments is complex, and this is magnified by the difficulty of seeing how it is operating.

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