Replication with multiple consistency groups per volume
A mechanism is provided in a data processing system comprising at least one processor and at least one memory, the at least one memory comprising instructions which are executed by the at least one processor and configure the processor to implement a replication environment. A first replication proc...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A mechanism is provided in a data processing system comprising at least one processor and at least one memory, the at least one memory comprising instructions which are executed by the at least one processor and configure the processor to implement a replication environment. A first replication process executing in the replication environment replicates a first consistency group of production volumes to a first set of disaster recovery (DR) volumes. The first consistency group comprises a shared volume that belongs to a second consistency group and wherein a second replication process replicates the shared volume to a second set of DR volumes. Responsive the first consistency group being current and replication stopping for the first consistency group, the first replication process generates a consistent image for each DR volume within the first set of DR volumes to form a first set of consistent images. Responsive to a disaster event, the mechanism enables access to the first set of consistent images for an application executing on a first production system associated with the first consistency group. |
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