We are doing a platform migration and followed by SAP release upgrade(including dual stack split). As per our experience EHP7 upgrade(ECC 6.0 EHP2 to ECC 6.0 EHP7) take around 60 hours overall execution time and H/W platform migration takes around 37 hours(using backup/restore & RMAN conversion. We proposed for two cutover: one for H/W migration and another for SAP Upgrade including dual stack split. The customer is not willing to afford two separate production downtime. We are finding some alternative solution to minimize H/W platform migration(old H/W to new H/W) time.
Hardware: IBM P -570 logically portioned (10 Core/74GB)
OS: SuSE Linux Enterprise Server 10 on Power
Hardware: IBM HS23 (16 Core/256 GB)
OS: SuSE Linux Enterprise Server 11.2 (x86_64)
Oracle : 18.104.22.168
System in scope:
1. SAP ISU :ECC 6.0 EHP2 – ECC 6.0 EHP7, Database size 10 TB
2. SAP CRM :CRM 2007 – CRM 7.0 EHP3, Database size 800 GB
3. SAP BW :BW 7.02 – BW 7.4, Database size 6 TB
I am wondering whether we can use SAP SLT for replicating from source system to target system, and make a logical cutoff and then start dual stack split and upgrade.
It will be great if anyone can through some light on it.
Many thanks in advance