Remote copy is a storage-based disaster recovery, business continuance, and workload migration solution that allows you to copy data to a remote location in real time. "Remote copy" refers to these main Advanced Copy Services functions:
- Metro Mirror (Peer-to-Peer Remote Copy, or PPRC)
- Global Copy (PPRC-Extended Distance, or PPRC-XD)
- Global Mirror, or asynchronous PPRC
- Global Mirror for System z® (Extended Remote Copy, or XRC)
and these additional functions which combine elements of those listed above with other Advanced Copy functions:
- Metro/Global Copy (PPRC and PPRC-XD)
- Metro/Global Mirror (PPRC and Global Mirror)
Multi-Target Mirror
(MTPPRC)
- Metro/zGlobal Mirror (XRC-IR)
- Failover (Reverse PPRC relationship during an outage)
- Failback (Copy changed tracks following an outage)
Note: Remote copy is an extended function on most IBM® storage controls, along with the appropriate
levels of DFSMSdfp and z/OS. The Coupled
Extended Remote Copy (CXRC) function of XRC supports very large customer
configurations. The PPRC function provides both synchronous and asynchronous
support.
For additional information about:
- Coupled XRC, refer to Managing coupled extended remote copy sessions.
- PPRC, refer to Choosing Peer-to-Peer Remote copy and Managing PPRC extended distance mode.