Cutover Considerations

Cutover considerations for upgrading from WebFOCUS Version 7 production to WebFOCUS Version 8 are described in the following table.

Options

Advantages

Disadvantages

Candidates

No cutover. Run systems in parallel.

Use WebFOCUS Version 7 for existing applications and WebFOCUS Version 8 for new development.

Minimal downtime.

Require additional resources.

Multiple systems to administer.

High-availability is required without any significant downtime.

Immediate cutover.

One system to administer.

Requires less resources.

Requires downtime for critical tasks.

Contingency plans needed to handle upgrade outages.

This approach is good for resource-constrained environments.

Must be able to schedule downtime with minimal disruption.

Phased cutover.

Low risk with low development overhead.

Conducive to controlled testing.

Need duplicate for a period of time.

Multiple systems to administer.

Applications are on different rollout schedules.


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