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The five Rs
==== Document Migration Strategy and Targets ====
==== Document Migration Strategy and Targets ====
By the end of this step you will have analyzed your portfolio of applications, updated key data in APM, chose the migrations strategy for each application ( one of the 5 Rs ), and the target for each application ( cloud or EDC ).
During the Determine Modernization Vision for the Organization step you would have determine how far your organization wants to take its modernization journey. Part of that step was the Cloud Fit Scorecard. You should have already narrowed the target options for each application.
For each application you need to determine you migration strategy (aka the 5Rs).
{| class="wikitable"
{| class="wikitable"
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| Lift, shift, and tinker
| Lift, shift, and tinker
| ?
| ?
| X
|X*
| X
| X
|-
|-
| ?
| ?
|
|
| X
|
|}
|}
* Address end of life OSes
'''Rehost (lift and shift)'''
cloud - some optimization of resources should occur to keep costs low. Turn off, used reserved instances.
'''Replatform'''
Address EOL software driven by the ITPINs
Move to platforms (PaaS) avoid OSes, serverless, lifecycle management
Containers
'''Refactor'''
Make elastic.
Function as a service.
Add DR
'''Replace'''
SaaS
Ensure applications are correctly allocated to data centres
