Status: IN
Azure SQL backup has three critical constraints that compound during DR planning: TDE prevents transaction log backup compression (reducing backup storage efficiency), geo-restore is disabled when backup redundancy is set to LRS or ZRS (forcing a GRS/GZRS cost commitment for geo-recovery), and server deletion permanently destroys all databases with only LTR blob backups surviving — making redundancy selection, encryption configuration, and operational procedures interdependent DR concerns.