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by Dishant Doriwala, Srikanth Thanneeru, Pooja Bableshwar, Neha Jain | Published April 9, 2018
Disaster recovery of applications and services is a key component to provide continuous business services. IBM Geographically Dispersed Resiliency for Power Systems is a disaster recovery solution that is easy to deploy and provides automated operations to recover production site. This article explains the configuration process for IBM Geographically Dispersed Resiliency for Power Systems. This includes hardware setup from Hardware Management Console (HMC) and storage setup for disk replication along with configuring resources that are monitored by the solution.
Disaster recovery (DR) and high availability (HA) solutions are mainly based on two types of technologies: Cluster-based technology and virtual machines (VMs) restart-based technology. The cluster HA and DR solution typically deploys redundant hardware and software components to provide near real-time failover when one or more components in the configuration fails. The VM-based solution relies on the out-of-band monitoring and management option to restart the virtual machines on hardware failure in an infrastructure. The Geographically Dispersed Resiliency solution is based on the VM restart technology.
Figure 1 shows the basic setup for the Geographically Dispersed Resiliency solution to be implemented for many subsystems. The Geographically Dispersed Resiliency solution provides a highly available environment by identifying a set of resources that are required for processing the VMs in a server during disaster situations.
The Geographically Dispersed Resiliency solution uses the following subsystems:
The solution requires the following software:
The solution requires the following hardware:
The IBM Geographically Dispersed Resiliency solution:
In summary, Geographically Dispersed Resiliency enables extremely simplified disaster recovery management for IBM Power Systems™. In less than 10 steps, an administrator can deploy and configure the Geographically Dispersed Resiliency solution. This is the only solution on IBM Power® that offers non-disruptive DR testing.
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