stopsap all does not stop the HANA db

Hello,

I installed a system with a SAP HANA database for the first time.

App server and database on 1 host, RHEL linux.

PRD is the SAP ID

PRH is the HANA DB ID

with user prdadm I run "stopsap all", the SAP systems stops but I get:

"Cannot find stopdb, DB shutdown failed" for the database.

I have to login with prhadm and run "HDB stop"

Is it normal behavior when you have HANA DB? I used to work with IBM DB2, and "stopsap all" script stops the database without any issues.

Thank you!

Ilian