Cutover considerations for upgrading from WebFOCUS 7 production to WebFOCUS 8 are described in the following table.
Options |
Advantages |
Disadvantages |
Candidates |
---|---|---|---|
No cutover. Run systems in parallel. |
Use WebFOCUS 7 for existing applications and WebFOCUS 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. |
WebFOCUS |