1. Login to the SAP HANA Server
- Log in to the SUSE (HANA) server using root access.
- Verify which user you are logged in as:
# who am i
Note: As a best practice, take a full backup of all databases before starting the following activity.
2. Stop All HANA Services
Run the following commands to stop all SAP HANA-related services:
- systemctl stop sapb1servertools-authentication.service
- systemctl stop authentication.service
- systemctl stop sapb1edfbackend.service
- systemctl stop b1s.service
- systemctl stop sapb1servertools.service
3. Verify That Services Are Stopped
Check the status of each service:
# systemctl status sapb1servertools-authentication.service
The Active status should be inactive.
4. Login as NDB User
# su – ndbadm
5. Check the HDB Status
ndbadm@SAPSERVER:/usr/sap/NDB/HDB00> HDB info
If multiple services are shown as running, it means the HDB service is still active.
6. Stop the HDB
ndbadm@SAPSERVER:/usr/sap/NDB/HDB00> HDB stop
Note: Please wait until the process is fully stopped before proceeding. This may take 10 to 20 minutes, depending on the server configuration.
7. Verify That HDB Has Stopped Completely
ndbadm@SAPSERVER:/usr/sap/NDB/HDB00> HDB info
8. Reboot the SUSE (HANA) Server
# reboot
9. After Reboot – Login as Root
Once the server is up and running again, log in with root privileges.
10. Login as NDB User
# su – ndbadm
11. Start the HDB
ndbadm@HANA3:/usr/sap/NDB/HDB00> HDB start
12. Start the NDB Services
Run the following commands to start all related services:
- systemctl start sapb1servertools-authentication.service
- systemctl start authentication.service
- systemctl start sapb1edfbackend.service
- systemctl start b1s.service
- systemctl start sapb1servertools.service
13. Verify That All Services Are Running
# systemctl status sapb1servertools-authentication.service
Ensure the Active status shows as active (running).
14. Final Step
Log in to SAP and verify that all functionalities are working correctly.
