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OceanStor 9000 V300R006C20 Hardware Installation Guide 05

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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 Signal Cable for a KVM

Installing a Signal Cable for a KVM

A keyboard, video, and mouse (KVM) is used by maintenance personnel to monitor device status. All storage nodes must be connected to the KVM for routine management and maintenance.

Prerequisites

  • All components have been correctly installed in the cabinet.
  • All required tools have been prepared, containing cable ties, diagonal pliers, and electrostatic discharge (ESD) gloves or an ESD wrist strap.

Context

A KVM provides eight VGA ports to connect to storage nodes (excluding C72 nodes), which correspond to the eight VGA ports on the KVM in a from-small-to-large sequential order.

A fully-populated P36/C36/P36E/C36E cabinet accommodates eight P36/C36/P36E/C36E. Figure 10-67 shows how VGA ports on the KVM are distributed to those nodes.
Figure 10-67  VGA ports distribution (P36/C36/P36E/C36E)

A fully-populated P25/P12/P25E/P12E cabinet accommodates 12 P25/P12/P25E/P12E. Figure 10-68 shows how VGA ports on the KVM are distributed to those nodes.
Figure 10-68  VGA ports distribution (P25/P12/P25E/P12E)

NOTE:

For a cabinet that is not fully populated, observe the preceding distribution rule and reserve empty VGA ports.

Procedure

  1. Wear an ESD wrist strap or ESD gloves.
  2. Determine KVM port numbers and signal cable connection modes.

    • In a P36/C36/P36E/C36E cabinet, VGA ports PC1 to PC8 on the KVM are connected to nodes 1 to 8 in sequence. As shown in Figure 10-67.
    • In a P25/P12/P25E/P12E cabinet, eight VGA ports on the KVM are distributed as shown in Figure 10-68.
      • VGA ports PC1 to PC6 on the KVM are connected to nodes 1 to 6 in sequence.
      • VGA port PC7 is connected to node 7. Nodes 8 and 9 are not connected to the KVM. If node 7 does not need to be connected to the KVM, VGA port PC7 is available to node 8 or 9.
      • VGA port PC8 is connected to node 10. Nodes 11 and 12 are not connected to the KVM. If node 10 does not need to be connected to the KVM, VGA port PC8 is available to node 11 or 12.

  3. Connect an HDB male marked KVM to a VGA port (PC1 to PC8) on the KVM.
  4. Insert the USB connector of the KVM cable to the USB port on a storage node and insert the HDB male marked PC to the VGA port on the storage node.

    NOTE:

    An empty VGA port must be filled with a KVM cable. The other end of the KVM cable is bound to the mounting bar of the cabinet.

    A P25/C36 node is used as an example to illustrate how to connect a KVM cable between a KVM and node, as shown in Figure 10-69.
    Figure 10-69  Connecting a KVM cable to a storage node

  5. Lay out the KVM cable along the mounting bar on the left rear of the cabinet neatly, use a cable tie to bind it, and use diagonal pliers to trim off the excess of the cable tie.
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Updated: 2019-03-26

Document ID: EDOC1000185366

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