DS8000 Global Mirror Best PracticesThis IBM® RedpaperTM publication reviews the architecture and operations of the IBM DS8000® Global Mirror function. The document looks at different aspects of the solution in terms of performance, infrastructure requirements, data integrity, business continuity, and impact on production. Hints and tips are provided on how to best configure the overall Global Mirror environment, in terms of connectivity, storage configuration, and specific parameters tuning. The guidelines that are provided are in general related to performance, which ultimately ensures a better recovery point objective (RPO). Therefore, we encourage you to follow those guidelines. |
Common terms and phrases
asynchronous replication bandwidth bitmap cache is preferred command connections consistency group formation Copy Services Manager create consistency groups data transmission disaster recovery Disk Magic distances Easy Tier EasyTier extent pools FCIP Fibre Channel FlashCopy operation FlashCopy relationship FlashCopy target volume form consistency groups Gbps GDPS GDPS/GM Global Copy Global Mirror configuration Global Mirror environment Global Mirror journal Global Mirror secondary Global Mirror session Global Mirror target H2 volumes host adapter IBM H1 IBM Redbooks IBM Spectrum Control impact journal volumes maximum drain MBps Metro Mirror microcode Mirror secondary disk MT PPRC Parallel Sysplex parameters performance pokeable ports PowerHA primary disk systems primary storage primary volumes production workload provides recovery point objective recovery scenario Remote Copy resynchronization SCSI secondary disk systems secondary volumes Sequence numbers solution synchronous thin provisioned volumes topology track VM VM VM VMware workload profile write activity write I/Os write operations z/OS