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Handbook of Sustainable Design of Digital Services

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Architecture    ODD#9    

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

Recommendation 

Life cycle

B People

A Planet

A Prosperity

Difficulty

**

Priority

High

Récurrence

Periodic

Tests

Are shutdown/activation thresholds defined and tracked?

Precisions

Service securitizations allow implementing load distribution solutions. Environments are sized according to the estimated peaks of use, which are most often on a seasonal basis. While remaining active, the replications of servers take loads, however often a smaller environment would be perfectly capable of handling all the traffic. The smaller the number of server instances, the smaller the environmental impact. Since bringing a replica back online is a simple and perfectly controlled operation, there is no benefit to maintaining server images 11 months a year, if the peak load is really only present for 1 month.

Use Case

Configuration mamangement defines dynamic provisionning / deprovisionning rules & triggers

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 Essential

Life cycle

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

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

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 ?