TrueCopy for Mainframe provides remote copy support for the IBM® Geographically Dispersed Parallel Sysplex (GDPS) facility. GDPS is an IBM® service for mirroring data and balancing workload on storage systems spread across two or more sites up to 40 km (20 miles) apart. With this support, users who are running IBM® Parallel Sysplex® systems can take advantage of numerous remote copy options for data availability.
GDPS operations feature automatic control of groups of PPRC-managed volumes using host-based scripts and PPRC commands, for example, CGROUP (FREEZE/RUN). GDPS support can have additional installation requirements for TrueCopy for Mainframe primary and secondary systems, depending on the microcode and TrueCopy for Mainframe versions. Check with customer support.
VSP One B85 does not support controlling the FREEZE Option through the CESTPATH LINK parameter. The FREEZE Option must be controlled using the CGROUP option of CESTPATH. Make changes as needed to the CESTPATH LINK definitions in your GDPS configuration files or configuration database.
For more information about GDPS, see the following IBM® publications: Geographically Dispersed Parallel Sysplex: the S/390 Multi-site Application Availability Solution, Executive Summary (GF22-5114) and Geographically Dispersed Parallel Sysplex: the S/390 Multi-site Application Availability Solution (GF22-5063).