LEGACY IBM ARRAY MIGRATION READINESS https://yenra.com/total-storage/ Prepared: September 16, 2026 Planning worksheet. Record evidence and unresolved questions; retain supporting documentation. SYSTEM IDENTITY Source and destination machine type / model / serial: Controller and management code levels: Installed functions, licenses and applicable document editions: Support responsibility and interoperability evidence: HOST AND APPLICATION MAPPING Hosts / OS / HBA / firmware / driver / multipathing: Fabric connectivity and host presentation: Source volume ID -> destination volume ID / size / owner: File-system or database purpose: Copy relationships, consistency groups and backup schedules: Application-owner mapping validation: METHOD AND REHEARSAL Chosen method and exact support evidence: Initial copy / changed-data / final-sync measurements: Write-control and consistency procedure owner: Rehearsal result and unresolved exceptions: CUTOVER AND RECOVERY Outage window and go/no-go authority: Prerequisite checks and destination-authority point: Acceptance: data / transactions / performance / protection jobs Rollback before destination writes: Rollback after destination writes, including reconciliation: Rollback deadline and decision conditions: Source retention / recovery-copy retention / final acceptance: