2331 - PowerHA for IBMi Geographic Mirroring_final _for_distribution.pdf

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1、IBM PowerHA for i IBM PowerHA for i-Geographic mirroringGeographic mirroringBest of breed for hybrid cloud HA/DR TechXchange 2024Session ID:2331.Steve Finnes,Pete MayhewAgendaPowerHA System Mirror for i IBM i native mirroringGeographic Mirroring conceptsIASPs PowerHA Geographic Mirroring scenariosAd

2、ministrative DomainGeographic Mirroring summary/benefitsLive demonstration What is PowerHA SystemMirror for iPowerHA is an orchestrator that automates HA/DR operationsData resiliency is managed at the hardware level-Geographic Mirroring(IBM i mirroring over IP)-Storage replication(Flash System Stora

3、ge or DS8000)-Switchable LUNs:shared storage(no replication)-FlashCopy automation for offline backupsData and application libraries are segregated into a storage pool called an IASP-This enables all nodes(LPARs)in the cluster to have active IBM i instances-PowerHA automates the process of switching

4、between nodes in the cluster-Active IBM i instances on alternate nodes also enable concurrent software maintenanceAdministrative Domain synchronizes monitored objects in Sysbas across nodes in the cluster-Objects are kept in sync at the firmware lever(SLIC)4Memorydisk unitdisk unitTraditional hardwa

5、re mirroring OS based 40 yearsCPCPUSYSBAS5Hardware based geographically dispersed mirroringHardware replication is a direct continuation of the operating systems storage management subsystem and can be thought of as replicating the data containers(IASP).The data is continuously present locally and a

6、t alternate locations in the cluster.The job of the PowerHA software is to Orchestrate the switching of the compute resources(IP,users,applications)to an alternate node in the cluster.The result is technical simplicity at the data layer,autonomous HA/DR operations at the software layerCPUMemorySYSBA