Metro mirroring is a function of the IBM System Storage Server. The data that is stored in IASPs is on disk units that are in the System Storage Server. This solution involves replication at the hardware level to a second storage server that uses IBM System Storage Copy Services.

Metro/Global Mirror is a three-site, high availability disaster recovery solution, which uses synchronous replication to mirror data between a local site and an intermediate site, and asynchronous replication to mirror data from an intermediate site to a remote site.

Metro Mirror is a method of synchronous, remote data replication that operates between two sites that are up to 300 KM apart. The source is in one storage system and the target is in another storage system.

Global Mirror is an IBM technology that provides data replication over extended distances between two sites for business continuity and disaster recovery. If adequate bandwidth exists, Global Mirror provides a recovery point objective (RPO) of as low as 3–5 seconds [ 1 ] between the two sites at extended distances with no performance impact ...

2024年1月24日 · IBM® Storage Virtualize software running on IBM Storage products provides clients an opportunity to maintain two independent copies of a single data volume across two sites by using the IBM Storage Virtualize Metro Mirror feature. Starting with Storage Virtualize V8.3.1.1, two site replication can be extended to a third site.

IBM addresses these needs and provides the option to exploit the unique capabilities of the DS8000 with a firmware-based three-site solution, Metro/Global Mirror. Metro/Global Mirror is a cascaded solution. All Copy Services functions are handled within the DS8000 firmware.

4.9.5 Adding Metro Mirror or HyperSwap relationships with data to a 3-Site consistency ... Redbooks® 1 Dr. Pradip Ashok Waykos Prateek Sudin Mandge . IBM Storage Virtualize 3-Site Replication IBM and /redbooks. 3. IBM Storage Virtualize 3-Site Replication. 1. IBM Storage Virtualize . Orchestrator.

Metro Mirror maintains a consistent copy of data between two IBM System Storage® external storage units. Metro Mirror, when used with cluster technology, provides a high availability and disaster recovery solution. Like geographic mirroring, this technology also mirrors data stored in independent disk pools.

2024年9月20日 · In Policy-based replication, all replication traffic is controlled by the partnership bandwidth limit. This is different to Metro Mirror, Global Mirror and HyperSwap - where the partnership bandwidth limit was only used to control the rate of the synchronization.

The Metro Mirror function supports copy operations between volumes that are separated by distances up to 300 km. For disaster recovery purposes, Metro Mirror provides the simplest way to maintain an identical copy on both the primary and secondary volumes.