SMDR is capable of connecting and backing up remote systems, which makes it behave both as a client and as a server. You need to select appropriate options to configure SMDRs for the required SSL behavior.
When SMDR connects to remote servers and communicates with loaded TSAs on those servers, it acts as a client. In turn, the SMDR module running on those remote servers act as server, servicing the client SMDR requests.
In Figure 7-1, SMDR running on Server A behaves as a client that services requests for backup application and for TSAFS running on the remote Server B. SMDR on Server B behaves as a server to SMDR running on Server A.
Figure 7-1 SMDR as a Client and Server