NEC N8800-149F User Manual page 40

2-4 General Description
NEC Express5800/ft series mainly provides the following advantages:
Highly fault-tolerant processing and I/O subsystems
NEC Express5800/ft series use redundant hardware and software to assure server
operation even if one module suffers trouble with its processor, memory, I/O
(including trouble related to the I/O controller), disk drive, or Ethernet adapter.
Continuous network connection
NEC Express5800/ft series maintains continuous network connection by detecting
any trouble with the network adapter, connection, etc. If trouble occurs, the standby
network connection will take over all network traffic processing and thus securely
maintain the network system connection of NEC Express5800/ft series without
losing network traffic or client connection.
Support of multiple network connections
Since NEC Express5800/ft series can support multiple Ethernet connections, you can
add network redundant control or network traffic control.
Industry standard hardware platform
NEC Express5800/ft series uses IA (Intel Architecture)-based system hardware.
No need to modify applications
You can run applications corresponding on Guest-OS on NEC Express5800/ft series.
Thus, unlike other highly fault-tolerant products, special API or scripts are not
necessary.
Transparent migration
NEC Express5800/ft series constantly monitors events. If trouble occurs on NEC
Express5800/ft series' server module, it will transparently use a redundant module of
the failed module. This feature maintains data and user access without losing
application service.
Automatic reconfiguration
When the failed module restarts after the trouble is corrected, NEC Express5800/ft
series will perform reconfiguration automatically, and if necessary, resynchronize the
affected modules. Reconfiguration can include CPU processing (e.g., CPU memory),
server's operating system (and related applications), and system data stored on the
hard disks. In most cases, NEC Express5800/ft series automatically restores
redundancy of the server modules after recovery.
Local and remote management
NEC Express5800/ft series uses NEC ESMPRO as a server management tool. This
tool uses a GUI that enables monitoring and setting of NEC Express5800/ft series.
NEC ESMPRO can be used both locally and remotely on work station PCs or server
PCs.