Wednesday, July 8, 2026

Multi-System Migration — Legacy → IBM Power-Native

ArcXA — Multi-System Migration Control Plane

Migration Control Plane / Program: Meridian Core Modernization

Multi-System Migration — Legacy → IBM Power-Native

Live sync — 4 sources connected
Target: IBM Power11 / On-Prem
Active Workloads 18 across 4 source systems
Migration Progress 62%
↑ 8% this quarter
Hardware Footprint Δ −34% cores consolidated on Power11
Open Compliance Items 5 2 high severity
Milestones On Track 9 / 11 1 wave at risk

Physical & Logical Migration Topology

Source systems → ArcXA control plane → Target infrastructure
Legacy Sources ArcXA Control Plane Target Infrastructure Oracle Financials GL / AP-AR · 2 nodes Oracle Core Banking Exadata X9M · 96c SQL Server Claims VM cluster · 128 vCPU SQL Server CRM 2 VMs · 32 vCPU ArcXA SPO Semantic Layer Power11 LPAR — Core Banking 48 vCPU · shared pool Power11 LPAR — Claims 56 vCPU · dedicated On-Prem Object Store Compliance archive
Complete In progress At risk / blocked Planned

Compliance Constraints

5 open
CMMC 2.0 Level 2
SSP evidence pending · Owner: Security · Due Aug 2026
IN REVIEW
FISMA Moderate ATO
Control assessment underway · Owner: ISSO
IN REVIEW
Data Residency — On-Prem Mandate
Verified across all target LPARs
SATISFIED
Encryption at Rest — FIPS 140-3
Validated on Power11 storage pools
SATISFIED
Segregation of Duties (SOX)
Claims wave — role conflict flagged in target schema
AT RISK

Migration Wave Milestones

FY26 Q3 — FY27 Q1
WAVE 1Oracle Financials → Core Banking LPAR
Complete
WAVE 2Oracle Core Banking → Core Banking LPAR
Cutover Sep '26
WAVE 3SQL Server Claims → Claims LPAR
Blocked
WAVE 4SQL Server CRM → Object Store
Planned Q1 '27

Hardware Footprint

Source vs. target
SystemSourceTargetΔ
Oracle Core Banking 3× Exadata X9M · 96c 1× Power11 LPAR · 48 vCPU −50%
Oracle Financials 2× DB nodes · 64c Shared Power11 LPAR Consolidated
SQL Server Claims 4× VM cluster · 128 vCPU 1× Power11 LPAR · 56 vCPU −56%
SQL Server CRM 2× VM · 32 vCPU On-Prem Object Store Archived







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