Technical Blog

Guides, troubleshooting notes and lessons learned from SAP BASIS, HANA and Security work.

SAP HANA Recovery Error "No Root Key Matching Hash": How to Fix It

The SAP HANA error "no root key matching hash" appears when you recover a backup into a database that doesn't have the encryption root key the backup was made with. The…

2 Nov 2026 3 min read

SAP HANA

SAP HANA backup and recovery: the essentials

SAP HANA keeps data in memory, but it is not volatile in the way that sounds. Every change is written to the log volume, and savepoints regularly persist data pages to…

31 Oct 2026 2 min read