Testing Huawei KunLun in Moscow. Installation

    Huawei KunLun

    In the spring, we were promised the opportunity to test the Huawei KunLun server in Moscow. In this short article I will talk about the first (preparatory) phase of testing KunLun at our customer - installation of iron.

    Next up are a lot of photos.

    We met with Huawei KunLun at Jet last winter, even before its official announcement. The server itself was located in China, and we remotely conducted its initial testing .

    Preparation for admission

    You can’t just take and put KunLun in your server room. When ordering a server, Huawei sends a checklist with a list of placement requirements. It allows you to check all the way from the truck to the rack in the server room: platforms for unloading and unpacking, requirements for the rack (including power and heat removal), as well as the possibility of the cabinet passing through elevators, ramps, doors and steps without harm to equipment and premises.

    Check list

    If it is impossible to overcome one of the sections due to size, weight or requirements for maximum slope, you can order unassembled delivery with assembly already in the server room (which was done). Strong assembly engineers and a Chinese English translator are included.


    The quality of the photos is poor, but this is the order of things.

    KunLun arrived in a truck disassembled (stand-skeleton separately, filling separately).


    The checklist is filled out for good reason. For fidelity, I even had to remove the lid from the packaging.

    Soaring pallet

    Inside the package, in addition to the rack, there is a ramp along which it slides off the pallet.

    Pallet and Ramp

    After descending to the floor under the supervision of a guard, the wardrobe went to overcome obstacles on the way to its staunch place.

    KunLun enters the building

    Finally, the KunLun skeleton took its place in the server room.

    Skeleton in the server room

    Interestingly, the server management module was already installed in the rack and even a little bit switched. We’ll start with him.

    Lightly commutated

    On the top front, he has an interface module, a DVD from which you can connect to server partitions, and everything else (USB, COM, VGA and an external control port) refers to the control module. Below are the duplicated modules of the management console itself.

    Control module

    The interface module is separate from the server.

    Interface module separately

    And the duplicated control module itself.

    Duplicated control module


    In maximum configuration, KunLun consists of four eight-processor chassis connected together. Since the half configuration first arrived (model 9016), there were two such chassis and they were put in their first place.

    Trolley Chassis

    Each processor module (installed in a vertical slot) is combined with 24 memory modules. You can remove from the server both the entire assembly and sets of memory modules of 12 pcs.

    Processor board

    A set of memory modules.

    Memory board

    In the back of the processor board under a huge heatsink is a processor.

    CPU heatsink

    And here is the processor itself without a heatsink.

    CPU without heatsink

    In addition to the processor modules, a front-end I / O module is installed on the front of the processor chassis. It contains up to 12 2.5 ”drives, RAID controllers and PCI-slots without the possibility of outputting cables (for SSD-drives, for example, or GPU for use as accelerators).

    Front input / output

    When the assembly of the 16-processor configuration was completed, two more processor chassis were brought.

    Another chassis for 16 processors

    As well as a power distribution module with clear instructions)

    All clear!

    It is front mounted in a rack (16A switches for each of the 24 power leads).


    Rear view of the processor chassis. Fans, power supplies, input / output ports, and most importantly, NUMA interconnect ports for communication with other chassis (two boards with nine ports in the center of each).

    Chassis, rear view

    There are also PCI slots with the ability to output cables to the outside and hot-swap PCI devices (optional).

    Qlogic with cooler

    And here is, in fact, a motherboard without a processor and memory, combined with a built-in network adapter. There can be up to 8 pcs of such boards in KunLun (2 per processor chassis), which limits the maximum number of partitions - 8 to 4 processors.

    This is where the download begins.

    Now it remains only to combine all the chassis into one system. At first so.

    Snotty NUMA

    Then like that.

    Switching over

    We put noise-insulating doors, which somewhat clutter the "cold corridor".

    Striking doors

    And connect them to the control module.

    Door connection

    Power on!

    Do not pass by!

    The screen is a touchscreen running Android OS through which it will be possible to interact with the server without the need to open rack doors or network connection.


    After switching on, all internal microcodes are updated, including BIOS The server is preparing to install the OS.

    Parallel upgrade

    That's all. We will try to tell about testing itself in our next posts (stay tuned).

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