User's Manual

18 Introducing HP StorageWorks File System Extender
Distributed implementation
In this implementation, FSE clients connect to one FSE server and are physically separated. External clients
connect to the server through either a LAN or a private network, and host HSM file systems, while the FSE
server does not need to host any HSM file systems.
Figure 4 Distributed FSE implementation
The clients manage the HSM file systems and communicate with major services running on the server. User
data from HSM file systems on clients is transferred to the FSE server and recorded on the corresponding
tape media in the attached tape library, or on the secondary disk. This makes it possible to manage file
systems on multiple file server machines without the need for a library and drives for each machine. It is
also possible to configure a mixed implementation, which combines the consolidated implementation with
external clients.
CAUTION: An FSE implementation does not support any proxy server or firewall between FSE clients and
the FSE server. FSE will only work if there is a direct network connection with a full-duplex transmission
between FSE clients and the FSE server.
For the latest information on supported TCP/IP connections, see the FSE Release Notes.