I work in SAP Upgrade feasibility study project.
I must calculate time as SAP is upgraded from SAP 4.6C to ECC 6.0 , how many down-times are needed.
Just except unicode conversion, only upgrade.
If I know system info(cpu/mem/disk I/O) and database size and network info and so on, how can I calculate estimately down-time using this informations.
If anyone know formula or have documents to calculate downtimes, let me know please.
I hope so many advices.