IBM z/OS Global Mirror Planning, Operations, and Best PracticesIBM® z/OS® Global Mirror (zGM), also known as Extended Remote Copy (XRC), is a combined hardware and software solution that offers the highest levels of continuous data availability in a disaster recovery (DR) and workload movement environment. Available for the IBM DS8000® Storage System, zGM provides an asynchronous remote copy solution. This IBM RedpaperTM publication takes you through best practices for planning, tuning, operating, and monitoring a zGM installation. This publication is intended for clients and storage administrators who need to understand and maintain a zGM environment. |
Common terms and phrases
address space Advanced Copy Services auxiliary devices auxiliary disk storage auxiliary storage system auxiliary volumes bandwidth best practice consistency group data currency data mover device blocking DFSMS Advanced Copy disk storage system DS8000 Metro Mirror enable ensure Extended Remote Copy extent pools FCIP Fibre Channel FICON FICON switches FlashCopy GDPS/XRC hardware bitmap HyperPAV I/O operations IBM Redbooks journal data sets LPAR migration MzGM Parallel Sysplex parameters parmlib primary and auxiliary primary disk primary storage control primary storage system primary systems primary volumes processor provides real storage record sets recovery recovery point objectives residual count resynchronization SDM address space SDM LPAR SDM system servers sidefile specified storage control session storage system cache suspend synchronization throughput utility device utility volumes VOLSER volume pairs write I/O write pacing XQUERY XRC Performance Monitor z/OS DFSMS Advanced z/OS Global Mirror z/VM zGM configuration zGM environment zGM session zIIP