Best Practises to follow to lift and shift migration form cache2017.1 to iris2020.1

Hi Community,

We got requirement to Migrate whole interfaces from prod instance (cache2017.1 ) to new instance iris2020.1.

Currently around 100+ integrations (health share and health connect) up and running in prod instance (cache2017.1 ) , we need to migrate this live server to brand new server with iris2020.1.

Could you please suggest me guidelines and best practises while doing this migration.

Please ping me any document reference for this kind of Lift and Shift Migration.

After migration done, we will use new Live (iris2020.1 )instance only.

Thanks,

Prashanth