HUAWEI X6800 Server White Paper

HUAWEI X6800 Server

White Paper

2 System Design l

The HMM works with the fan switch boards to implements fan management. The fan switch board provides five independent pulse-width modulation (PWM) control signals to control the fan speed and ten tachometer (TACH) signals to detect the fan speed.

Based on the ambient temperature and temperature of the temperature-sensitive components on the boards, the HMM uses Huawei speed adjustment algorithms to determine a proper rotation speed, and then sends it to the fan switch board. The fan switch board receives fan speed signals from the fan modules and reports the fan module status to the HMM.

l PSU monitoring and management: The HMM provides one inter-integrated circuit (I

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C) for managing the PSUs and general purpose input/output (GPIO) pins for detecting the

PSU installation status and PwrOk state. The HMM supports queries on PSU output power, PSU installation status, and PSU alarms.

Figure 2-3

shows the X6800 management and monitoring design.

Figure 2-3 X6800 monitoring and management design

2.4 Advantages

l The X6800 uses Huawei proprietary system architecture with front maintenance and front and rear access cabling, providing easy maintenance of the cool wind area.

l The X6800 provides eight slots for installing 4U4 and 4U8 server nodes. This unified architecture allows flexible configuration of computing and storage resources and easy upgrades and maintenance.

l The X6800 uses a modular design and supports hot-swappable server nodes, hard disks,

PSUs, fan module, and I/O module, which increases maintenance efficiency.

l The X6800 uses the iBMC and HMM to implement management. The iBMC manages server nodes, and the MMC manages the fan modules, PSUs, and chassis.

l All server nodes share the PSUs and heat dissipation, improving PSU conversion efficiency and reducing system power consumption.

Issue 03 (2017-04-27) Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

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