The primary server sends the disk changes over the mirrored server link to update the repaired server and to mirror the contents of the disk. Disk mirroring occurs in the background during idle cycles.
Scenario 2. Hardware fails in the secondary server: The primary server notifies the system administrator that the secondary server is down and that it is still the primary server.
SFT III keeps track of any disk changes following the secondary server′s failure.
The system administrator repairs and brings up the secondary server.
The primary server sends the memory image and disk changes across the mirrored server link to update the secondary server and to
Scenario 3. The Mirrored server link fails: The secondary server detects that information is not coming across the MSL.
However, server state packets are still coming across the IPX internet link, indicating that the primary server is still active.
The secondary server shuts down because the primary is still servicing the clients. Server mirroring is no longer possible.
SFT III keeps track of any disk changes following the secondary server′ s shutdown.
The system administrator repairs the mirrored server link and brings up the secondary server.
The primary server sends the memory image and disk changes across the mirrored server link to update the secondary server and to
Scenario 4. A LAN adapter fails in the primary server: The operating system detects a LAN adapter failure in the primary server.
The operating system determines the condition of the secondary server′s LAN adapters. If the secondary server′s LAN adapters are more functional and the server is still mirrored, the secondary server takes over servicing clients on the network.
The system administrator is notified of the failure on the server′s console screen and an entry is made in the log file.
SFT III keeps track of any disk changes following the failed server′s shutdown.
The failed server will restart automatically and become the secondary server.
The active server sends the memory image and disk changes across the mirrored server link to update the failed server and to
