Technology Portfolio Management (TPM) Best Practices - Use reserved capacity, committed use discounts, and savings plans to reduce cloud costs at scale
Technology Portfolio Management (TPM) Best Practices
Use reserved capacity, committed use discounts, and savings plans to reduce cloud costs at scale
Overview
Cloud providers offer substantial discounts — typically ranging from twenty to sixty percent relative to on-demand pricing — for organizations willing to commit to a defined level of capacity usage over a one or three year period. Reserved instances, committed use discounts, and savings plans are the primary mechanisms through which these discounts are accessed. For organizations with stable and predictable workloads, these commitment-based pricing mechanisms represent the single largest cost optimization lever available in cloud financial management. For organizations with more variable workloads, a disciplined approach that commits capacity for the stable baseline while maintaining on-demand capacity for variable peaks can capture significant discounts on the majority of cloud spend.
Best Practice
Develop and maintain a committed capacity strategy for cloud technology spending that maximizes the use of commitment-based pricing discounts for stable workloads while preserving the flexibility needed for variable and unpredictable workloads. The committed capacity strategy should be reviewed and updated at least annually to reflect changes in workload profiles, changes in organizational technology direction, and the committed capacity coverage available under existing commitments. Coordinate the committed capacity strategy with the technology rationalization roadmap from the Technologies Inventory — committing capacity for workloads that are planned for migration or retirement in the commitment period creates stranded commitment cost that offset the savings the commitment was intended to produce.
Benefit(s)
A disciplined committed capacity strategy produces material, durable reductions in cloud technology spending for organizations with stable workloads. The discount mechanisms are well-understood and predictable; the governance challenge is not discovering that discounts are available but developing the organizational discipline to commit to them systematically and to manage the commitments actively throughout their term. Organizations that implement this discipline consistently report cloud cost reductions in the twenty to forty percent range for the stable portion of their workload, representing one of the highest-return investments available in cloud financial governance.
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