How to install pegaplatform 8.7.2 on redundant second server?

Hi. Pega Support.

I’m planning to install pegaplatform 8.7 to two redundant servers that share one Oracle database.
I successfully installed it to one server but failed to install second server. When I executed .instal.sh to install Pegaplatform it said that database set up had alredy been done.
Is it possible for Redundant 2 servers to share the same tablespaces on one PDB?

Is there any guide or manual that tells how to install/setup redundant servers?

Thank you.

this problem was solved. it was caused by the edition of oracle db.