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X6800 Server V100R003 User Guide 13

This document describes the Huawei X6800 server (X6000 for short) in terms of its appearance, features, specifications, system components, device installation, cable connections, and installation verification.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Installing a Chassis

Installing a Chassis

This topic describes how to install a chassis in a rack.

Operation Scenario

Install a chassis in a standard rack.


When moving a chassis, do not hold the management module handle, which cannot bear the weight of the entire chassis.


  1. Precautions
    • Two persons are required to move and install a chassis.
    • Two persons are required to hold the left and right edges of an empty chassis and exert even force. Do not hold the upper edge of the chassis because this may damage the chassis shell.
    • Each chassis must be installed on the guide rails in a rack. Do not stack chassis in a rack.
    • If simplified cable management arms are used, reserve 1U space under each chassis. If flexible CMAs are used, the 1U space does not need to be reserved.
  2. Preparations
    • Enough space is available for installing the chassis in the rack.
    • You have determined the positions for installing guide rails and floating nuts in the rack. Floating nuts are installed on the inner sides of the mounting bars on the rack and used to secure a chassis by working with the captive screws in the panel.
    • The chassis has been unpacked and placed near the rack.
  3. Tools
    • Phillips screwdriver: used to tighten and loosen screws in guide rails and captive screws in the chassis.
    • Floating nut hook: used to install floating nuts on the mounting bars of the rack.
    • ESD gloves: used to prevent ESD damage when you move a chassis.

Installation Description

Guide Rail Installation Requirements

Before installing guide rails, you need to determine the positions of guide rails based on the configuration scheme.


The middle of two adjacent square holes with small spacing is the boundary of two Us. See Figure 3-6. The boundary between Us is used as the reference for calculating device installation space.

Figure 3-6 Spacing of 1U on the mounting bar of a cabinet

Rack Installation Requirements

The Depth dimension of X6800 is 898 mm, and the requirement of Rack depth is no less than 1200 mm. Detail requirement is described in following picture Figure 3-7.

Figure 3-7 Rack requirements

  • The minimum cabinet depth is 1.2 m (47.2 in.).
  • Leave a 140 mm (5.51 in.) gap between the front mounting bars and the door for front cabling.
  • Cabling option 2 is recommended because routing PDU cables from the chassis rear avoids tangling with the server cabling.
  • If cabling option 1 is used, ensure that the maximum gap between the PDU and rear door is 135 mm (5.31 in.).
  • Adjust all positioning distances to allow for cable bend radius, while always ensuring front cabling security and unobstructed installation and use of PDU plus.


  1. Install guide rails.

    1. Use a screwdriver to fasten one dowel pin on the front of the guide rail and two dowel pins on the rear. Figure 3-8 shows the positions of dowel pins.

      Three types of dowel pins are shipped with the guide rails, and their diameters are 6.8 mm (0.27 in.), 8.7 mm (0.34 in.), and 9.2 mm (0.36 in.). You choose a dowel pin based on the size of the mounting bar. Ensure that the diameter of a hole in the mounting bar is a little greater than that of a dowel pin.

      Figure 3-8 Installing a dowel pin

    2. Place a guide rail horizontally in the planned position and stretch the guide rail and align the holes on the guide rail with the holes on the inner mounting bar of the cabinet. See step (1) in Figure 3-9.

      Guide rails are divided into left and right guide rails (labeled with L and R). A pair of guide rails should be installed together and cannot be installed reversely.

    3. Use a screwdriver to tighten two screws on the front of the guide rail and two screws on the rear. See step (2) in Figure 3-9. The figure shows the positions of screws.
      Figure 3-9 Installing a guide rail

    4. Repeat 1.a, 1.b, and 1.c to install the other guide rail.

  2. Install a chassis.

    1. Lift the chassis by holding its left and right sides and slowly move it to the front of the rack.
    2. Slowly slide the chassis into the rack along the guide rails. See step (1) in Figure 3-10.
    3. Tighten the captive screws on the mounting ears using a Phillips screwdriver to secure the chassis to the rack. See step (2) in Figure 3-10.
    Figure 3-10 Installing a chassis

  3. (Optional) Install a snap-on guide rail.

    The X6800 chassis provides six snap-on slot pairs for installing snap-on guide rails, numbered 1 to 6 from left to right. For details about how to install snap-on guide rails, see Replacing a Snap-on Track.

    • If 4U8 server nodes are installed, install all the six snap-on guide rails, as shown in Figure 3-11.
    Figure 3-11 Installing snap-on guide rails (4U8 server nodes)

    • If 4U4 server nodes are installed, install snap-on guide rails only in slot 2 and slot 5, as shown in Figure 3-12.
    Figure 3-12 Installing snap-on guide rails (4U4 server nodes)

Updated: 2018-09-06

Document ID: EDOC1000066339

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