Copy Services are a collection of functions that provide for disaster recovery, data migration, and data duplication functions. There are two primary types of Copy Services functions: Point-in-Time Copy and Remote Mirror and Copy.

Generally, the Point-in-Time Copy functions are used for data duplication, and the Remote Mirror and Copy functions are used for data migration and disaster recovery.

With the Copy Services functions, for example, you can create backup data with little or no disruption to your application, and you can back up your application data to the remote site for disaster recovery.

Copy Services run on the DS8000 Storage Unit and support open systems and System z environments. A subset of these functions is supported also on the previous generation of disk storage systems, the IBM TotalStorage Enterprise Storage Server (ESS).

Many design characteristics of the DS8000 and its data copying and mirroring capabilities contribute to the protection of your data, 24 hours a day and 7 days a week (24×7).

The main optional licensed functions of Copy Services are:

_ FlashCopy, which is a point-in-time copy function

_ Remote Mirror and Copy functions, previously known as Peer-to-Peer Remote Copy (PPRC), which include:

– Metro Mirror, previously known as Synchronous PPRC

– Global Copy, previously known as PPRC Extended Distance

– Global Mirror, previously known as Asynchronous PPRC

– 3-site Metro/Global Mirror with Incremental Resync

_ z/OS Global Mirror, previously known as Extended Remote Copy (XRC)

_ z/OS Metro/Global Mirror across three sites

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