Hana 2 migration paths

[former_member1141627]

Hello,

I need to validate with experienced admins the possible migration scenarios in my landscape.

I currently have a HANA 1.0 SPS12 SDC with HSR Dell will deliver us a brand new Server with the lastest HANA version (SPS04). After some search, i found two possible ways to migrate on this new server :

- Backup/restore : Restore a backup from HANA 1 to the new HANA 2 database, conversion to HANA 2 take place during restoration. Downtime duration : hard to estimate because of the conversion

- NZDU with replication : It is actually not possible to replicate a SDC to a MDC, so i need to convert my HANA 1.0 to MDC (./hdblcm --action=convert_to_multidb), configure a replication 1.0 MDC to 2.0 MDC and perform a takeover. Downtime duration : i need to stop the DB during MDC conversion and additionate the small takeover downtime.

Can you confirm i'm on the good way ?

Thanks a lot

[AtulKumarJain]

What is the size of your database and Is it mutli node or single node?

Best Regards,

Atul

[former_member1141627]

Hello,

The database size is 600 GB, single node.

Regards

[AtulKumarJain]

If I was in your place ,I will go with first approach.

You can do a trail run of a backup to restore on new server,so you will get the time estimate and based on it you can plan your downtime.

I don't think 600GB will take much time.

Best Regards,

Atul