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 Windows Server 2003-compliant applications on NEC Express5800/ft series. Thus, unlike other highly fault-tolerant products, special API or scripts are not necessary.

Automatic mirroring

NEC Express5800/ft series automatically maintains data as the current data. Automatic detection and notification of faults

NEC Express5800/ft series detects and sorts out all events such as general status changes and faults, and notifies Windows Event Log of these events.

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.