sap basis 培训基础教程
The enqueue replication server runs on another host and contains a replica of the lock table.
The ERS instance contains the replication table, which is a copy of the lock table.
The replication server are connected to the SCS instance. If the SCS instance fails, it is restarted by the cluster software on the replication server, and the lock table stored on the replication server is transferred to the SCS instance.
