Both of these concepts are essential to the continued safe and assured operation of the enterprise data center. A major provider of third-party high availability solutions, Vision Solutions, defines software HA solutions as those designed to protect data, minimize downtime and maximize resources for the modern data center. This traditional type of HA solution has existed for 20 years on IBM Power / Systems iSeries / AS/400 family.
IBM provides FlashCopy™ functionality to duplicate large amounts of data and objects on the IBM Storwize family. Focal Point’s IntellaFLASH™ Solution provides a reference architecture that brings together the business benefits of HA for IBM i users in a bundled solution consisting of a managed service incorporating hardware, software and specialized services.
Logical Replication is the basis of any high availability software product. It is also referred to as traditional mirroring. This scenario shows three separate customers on three separate servers/LPARs mirroring data to the IBM i target server. The target server is attached to an IBM Storwize external disk storage system (V3700, V5000 or V7000). During the mirroring process, the HA software replicates data (logical groups) from the source server to the target server connected to the Storwize family. Any missing objects not selected in the replication process will be missing in the target data groups or volumes. IntellaFLASH™ flashes the contents of CUST1 Target (volume 1) to CUST1 IntellaFLASH™.
This scenario has several benefits:
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