单主机架构

 System Database

• The system database does not have the same functionality as a tenant database.
• The system database is not a database with full SQL support.
• The system database cannot be distributed across multiple hosts, in other words, scale-out is not possible.
• If you need a full-featured SAP HANA database, you always have to create at least one tenant database.
• The system database does not support Application Function Libraries (AFL) and SAP liveCache applications.
• Cross-database access between the system database and a tenant database is not possible. The system database can show monitoring data from tenant databases (views in the schema SYS_DATABASES) but can never show actual content from tenant databases.
• The system database cannot be copied or moved to another host.
• SAP HANA options can only run in tenant databases.
• Tenant-specific configurations cannot be set in the system database. Only global settings are allowed.
• Features can only be restricted or disabled at high level for tenant databases.

Tenant Databases:(Database-related topology information is stored in the relevant tenant database catalog.)

• Set of database users
• Database catalog
• Repository
• Persistence
• Backups
• Traces and logs

https://help.sap.com/viewer/6b94445c94ae495c83a19646e7c3fd56/2.0.04/en-US/f9aba40d6c4c4ae48cce461db4d42d88.html

[SAP HANA] SAP HANA的架构

原文：https://www.cnblogs.com/tingxin/p/12622050.html