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Handbook of Sustainable Design of Digital Services

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Architecture    ODD#9    

Are the environments other than production (DEV, QA, ...) switched off or decommissioned outside the ranges of use (at night, outside the test periods) ?

Recommendation  Essential

Life cycle

B People

A Planet

A Prosperity

Difficulty

*

Priority

Low

Récurrence

Periodic

Tests

Does the infrastructure / application turn off the environments which are not needed to be up all the time?

Precisions

Apart from production, which may have a 24/7 availability requirement, other environments (tests, integration, acceptance) are most often linked to human operations subject to restricted time slots, or even to limited periods. When the environments are not in use, they should be inactive in order to reduce the energy consumption of these configurations. They should be decommissioned when no further use is planned over a long period.

Use Case

Technical documentation reports expected loads and dynamic provisionning / deprovisionning rules

Link to a study which states that 30% of servers are in a "comatose" state https://www.anthesisgroup.com/wp-content/uploads/2019/11/Case-Study_DataSupports30PercentComatoseEstimate-FINAL_06032015.pdf (Amaury)

Additional elements

Operational issues related to the project

Posts

Rule for assessing the level of compliance of the criterion

Formalized = 100 ; Planned = 75 ; Identified = 50 ; Ignored = 0 / 100

Life cycle

Administration

5 other criteria related to the recommendation: Anticipate the operation of services

Recommendation

Sustainable IT Infrastructure

Are methods in place to measure the actual consumption of the code in production and allow accurate sizing ?

Recommendation

Sustainable IT Infrastructure

Is the hosting of applications densified ?

Recommendation

Life cycle

Are unused production environments outside of peak loads turned off or decommissioned ?

Recommendation

Software Design Sustainable IT

Are the definitions of SLA and QoS for each of the functions of the application architecture specified in accordance with the business uses ?

Recommendation

Software Design Sustainable IT

Is the digital service efficient all along its lifespan ?