Fujitsu N800 사용자 설명서

U41243-J-Z156-1-76

 

3

Introduction

The server is equipped with three power supplies. This ensures a power supply 
redundancy. If a defect occurs in one unit, the other units ensures unimpaired 
further operation. The defective power supply unit can be replaced during 
operation (hot-plug power supply).

The server contains two independent cooling subsystems:

–

The upper system for cooling the system board, the I/O board and the upper 
part of the control panel.

–

The lower system for cooling the memory modules, drive cages and the 
power supplies.

Both subsystems offer redundant cooling capabilities. As shipped from the 
factory, the minimum configuration includes six fans in the upper cooling system 
and three power supplies (each with an integrated fan) in the lower cooling 
system

I

All chassis covers must be on the system for proper cooling.

The server is equipped with four PCI buses with six hot-plug PCI slots (33 MHz) 
and four hot-plug PCI slots (100 MHz). Boards in these slots can be replaced 
during operation if required.

When accessing stored data, 1-bit-errors in the main memory are automatically 
recognized and corrected (ECC = Error Checking and Correction). The 
patented memory scrubbing function regularly starts up the EDC mechanism 
and thus ensures continuous data integrity.

ASR&R (Automatic Server Reconfiguration and Restart) tunes out defective 
system components during an automatic system reboot. 

The Prefailure Detection and Analyzing Technology (PDA) reports the threat of 
system errors or problems to the system administrator so that preventative 
measures can be taken. 

The hot-swap-capable hard disks provide additional protection.