Adaptec ANA-62000 - Manual (Page 31)

2-3
Introduction to Duralink64 Port Aggregation
The next traditional method provides network Fault Tolerance
through doubling the hardware and addition of a special version of
NetWare (SFT3). Data is kept current between servers via a Mirrored
Server Link (MSL). In the illustration below, one server is active
while the other is ready to take over all duties if the other fails.
Figure 2-2. Fault Tolerance Using NetWare
Primary Server
Ethernet Switch
Clients
Central switching area
with lines to workgroups
Secondary Server
MSL