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High Availability for IBM i: A Technical Review of Software and Hardware-Based Solutions
from Vision Solutions

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White Paper

Description:
Achieving effective and efficient high availability protection for larger IBM i environments requires careful thought and clear understanding of the technology options. This white paper describes what you need to know in order to make an informed decision about IBM i high availability strategies so that your business requirements for Recovery Time Objective (RTO) and Recovery Point Objective (RPO) are not compromised.

Double-Take Software White Paper Sample

On the IBM i platform, there are fundamentally two ways to protect your business from unplanned business outages due to server failure: 1. Logical replication to maintain a hot backup copy of the environment that is fully available to the business at the point of switchover 2. Hardware HA to maintain an offline backup copy of the environment that is ready and waiting to reconstruct the environment with the latest possible copy of the data

Both approaches are strategic for IBM i and Power Systems hardware, and both have advantages as well as challenges that must be overcome in order to meet the goals of no loss of data (RPO) and the fastest possible recovery (RTO).

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