Enhance ADB-S to ADB-D business cases

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2026-05-08 15:23:34 -03:00
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business_case:
customer_name: "Synthetic Commerce Co."
cover_subtitle: "ADB-S to ADB-D Migration Business Case"
prepared_by: "Diego Cabrera"
prepared_by_role: "Solutions Architect"
date: "2026-05-08"
executive_summary: >
Synthetic Commerce Co. is evaluating a move from ADB-S to ADB-D for a
fraud analytics workload where predictable performance, read-path cleanup,
and storage economics are more important than a pure near-term cost takeout.
drivers:
primary: "Stabilize fraud analytics performance while keeping the business case auditable."
urgency: "Validate capacity, TCO crossover, and migration bridge assumptions before procurement."
adbs_to_adbd:
license_model: BYOL
discount_pct: 0.11
ecpu_per_db_node: 760
current:
label: "ADB-S As-Is"
workload_ecpu: 2400
storage_tb: 96
read_architecture: "Refreshable/read clones serve application reads; standby is not the application read path."
target:
label: "ADB-D Dedicated"
workload_ecpu: 2400
storage_tb: 96
db_nodes: 5
storage_servers: 3
read_architecture: "Local ADG read-only standby serves application reads; steady-state clones retired."
forecasts:
- period: "24M"
display_label: "Year 2"
as_is:
workload_ecpu: 3150
storage_tb: 128
to_be:
workload_ecpu: 3150
storage_tb: 128
db_nodes: 6
storage_servers: 3
- period: "36M"
display_label: "Year 3"
as_is:
workload_ecpu: 3900
storage_tb: 166
to_be:
workload_ecpu: 3900
storage_tb: 166
db_nodes: 8
storage_servers: 3
goldengate:
mode: migration_bridge_only
ocpus: 4
bridge_months: 3
bridge_one_time_cost: 0
storage_economics:
base_break_even_tb: 91
business_impact:
business_impact_per_hour: 0
crossover_chart:
y_axis_min: 1.5
y_axis_max: 3.5
y_axis_major_unit: 0.5
roadmap:
total_duration: "12 weeks"
phases:
- name: "Define"
duration: "2 weeks"
deliverables: ["Baseline current BOM", "Confirm success metrics"]
- name: "Design"
duration: "4 weeks"
deliverables: ["Dedicated capacity plan", "Read-path validation"]
- name: "Deliver"
duration: "6 weeks"
deliverables: ["Migration bridge", "Cutover rehearsal"]
recommendation:
summary: "Proceed with detailed design for the ADB-D Dedicated target, validating the utilization, storage break-even, and GoldenGate bridge assumptions before final commercial approval."
next_steps:
- action: "Confirm workload ECPU demand and storage forecast"
owner: "Customer"
deadline: "Before design sign-off"
- action: "Validate ADB-D DB node and storage server reservation"
owner: "Oracle"
deadline: "Before procurement"
deck_validation:
forbidden_phrases:
- "OCI Annual"
- "FTE-year"
- "if 4x3 is selected"