SOLUTION BRIEF

Executive Summary

Table of Contents
Executive Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Critical Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Supermicro OCP Server Details . . . . . . . . . . . . . . . . . . . . . . . 4
What is DC-MHS? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

As data centers continue to expand and look to optimize theirrack scale investments, industry standards are now available,
which can reduce costs and allow for a more efficient data
center. The Open Compute Project (OCP) has developed anumber of system and rack level standards, which results inlower costs for data center operators and enhance AI data
centers of the future.

Full ORV3 Rack Solution From Supermicro . . . . . . . . . . . . 5

Efficiency: OCP racks are designed to be efficient in terms ofSummary and Further Information . . . . . . . . . . . . . . . . . . . 6
power and cooling. They minimize wasted space and materials
and use innovative power distribution systems that reduceenergy consumption. This can lead to significant cost savings for data center operators.
Scalability: OCP racks are designed to be easily scalable. They can be quickly and easily configured to meet the changing needsof a data center. This is important for businesses that are constantly growing and evolving.

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Cost-effective: OCP racks are often less expensive than traditional server racks. The future-proof design choices within theseracks are based on open industry standards that prioritize compatibility and reusability. Additionally, OCP racks are modular,
which means that data center operators only need to replace malfunctioned components rather than the entire rack.
Future Proof: These design choices ensure that future generations of servers are compatible with industry-standard rack
designs and that compatibility and reusability are prioritized.
Openness: OCP embraces open standards, allowing greater flexibility and vendor choice for data centers. These racks include
highly customizable hardware and firmware to meet the growing intricacies of customer requirements. This open framework
can lead to more innovation and lower costs as industry standards are adopted.

Critical Components
The Supermicro Total Rack Solutions support both air and liquid cooling and are based on OCP and Open-Source Principles andTechnologies. The components of a complete OCP solution can include the following:•ORV3 Racks: The OCP has developed two designs for the mechanical specifications of the Open Rack Frame. The
design is for the internal dimensions, while the external dimensions may vary. Each design can accommodate rackunits (vertical spacing of servers) of either 44.45mm or 48mm. More details can be found at:https://www.opencompute.org/documents/open-rack-base-specification-version-3-pdf•

Liquid Cooling Options: Supermicro, with its worldwide manufacturing capacity of almost 1,500 liquid-cooled
racks/month, designs entire rack solutions, including cold plates, coolant distribution units (CDUs), coolant
distribution manifolds( CDMs), piping, and a cooling tower. The entire solution is available from Supermicro.

•OCP Rack Server Power: Power is delivered to the OCP Rack as AC. The power goes to the OCP Power Shelf (48V),
where the conversion to DC occurs. The DC power is sent through what is referred to as a Busbar, which runs along theentire rack vertically. Each of the OCP ORV3 servers connects to the Busbar through a blind mate connector. Thismethod of delivering power to the server results in:oNo loss during the AC to DC conversion at each server – The conversion from data center power is only done
once per rack.

oNo PSU in each server – Reduces cost as the PSU is not needed in each server. This also lowers coolingrequirements.

oNo power cords – A blind mate connector is used, a type of electrical connector with a mating action that
happens when sliding or snapping the plugs. These connectors have self-aligning features that allow for small
misalignments when mating.

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April 20242

Figure 1 - OCP Open Rack V3 Power Output Connector•Industry Standards: Supermicro is committed to supporting open industry standards, including EDSFF E1.S and E3.Sstorage drives, Data Center Modular Hardware System (DC-MHS) architectures, OCP 3.0-compliant Advanced IO
module (AIOM) cards for up to 400 Gbps bandwidth based on PCIe 5.0, OCP Open Accelerator Module Universal Base
Board Designs for the GPU complex, Open ORV3-compliant DC-powered rack bus bar, and Open BMC. OCP DC-MHS
systems provide interoperability between key data center, edge, and enterprise infrastructure elements by providing
consistent interfaces and form factors among modular building blocks. Air and liquid cooling is available for theSupermicro CloudDC (DC-MHS based), Supermicro MGX servers, and other planned server product families. The newservers are designed for AI inferencing, enterprise and cloud scale-out workloads.

Figure 2 - Power Shelf•OCP Server Summary: Supermicro designs a range of servers optimized for different applications. Servers that willmeet the ORV3 specifications include:
oCloudDC (DC-MHS) Servers – Single or dual Intel Xeon 6 processors or single AMD EPYC processor, which arecoming soon.

oSupermicro MGX Servers – NVIDIA Grace Hopper Superchip processors

oSupermicro MegaDC ARS Servers with the Ampere CPU© 2024 Copyright Super Micro Computer, Inc. All rights reservedApril 2024

3oPetascale (DC-MHS) Storage Servers– These new systems will use dual Intel Xeon 6 processors and EDSFF
E1.S and E3.S storage, and support CXL as well.

•Supermicro AIOM Networking: AOCs are a superset of OCP 3.0 specification and provide a range of networking
connectivity.

•Redfish Profile Support w/SuperCloud Composer: Intelligent agents within SuperCloud Composer harvest richmetadata, parsing redfish endpoints and preparing this rich metadata for display within SCC's unified dashboard.

•Networking Option: The Cloud and AI Rack Solutions can be built with Supermicro Sonic Networking Solutions with
400Gbps Ethernet (QSFP-DD), SONiC Networking Operating System, Fully shared packet buffering, Redundant hotpluggable power supplies, and regular and reverse airflow models.

•OpenBMC: The OpenBMC project is a Linux Foundation collaborative open-source project that produces an opensource implementation of the baseboard management controllers (BMC) firmware stack. OpenBMC is a Linux
distribution for BMCs that works across heterogeneous systems, including enterprise, high-performance computing(HPC), telecommunications, and cloud-scale data centers.

•Open System Firmware: Supermicro servers support the Open System firmware, allowing for a common interface tothe lower level firmware.

Supermicro OCP Compliant Server Details (Based on DC-MHS and DC-SCM modules)•The upcoming Supermicro X14 CloudDC (DC-MHS) exemplifies Supermicro's commitment to creating OCP
compliant servers that adhere to the latest consistent interface and form factor standards for modular
building block solutions. These servers enhance interoperability due to highly customizable components
and firmware that can be tailored for compatibility across other systems to further meet customer
specifications. X14 CloudDC will include modular hardware such as Full Width HPM (Host ProcessorModule) (M-FLW) and Scalable DeNsity Optimized (M-SDNO), Common Redundant Power Supply (M-CRPS),
Peripheral Sideband Tunnelling Interface (M-PESTI), and other features.

•The CloudDC (DC-MHS) servers will also feature a Datacenter-ready Secure Control Module (DC-SCM) that
simplifies server security management by unifying management across servers with a singular firmware
image and I/O. Credentials and settings saved to the DC-SCM are isolated from the main board, allowing
end users to preserve the module in case of an HPM malfunction. These modules, along with theirperipherals, are designed to be externally accessible for shared infrastructure enclosures, improving easeof serviceability and longevity. Customers can anticipate faster maintenance and deployment while
lowering long-term overhead costs with these forward-looking design choices.

What is DC-MHS?
DC-MHS stands for Data Center Modular Hardware System. This design specification is part of a larger initiative by the Open
Compute Project (OCP) to standardize components used in data centers, at the edge, and in enterprise deployments
https://www.opencompute.org/index.php/projects/dc-mhs. The goal is to create interchangeable building blocks for more

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flexibility and efficiency in data center design. This modularity is achieved through consistent interfaces and form factors forthings like server chassis and power supplies. Some essential aspects of DC-MHS include:
Standardized components: DC-MHS defines specifications for core components like Host Processor Modules (HPMs),essentially motherboards. This standardization allows for compatibility between different manufacturers' equipment.
Multiple form factors: The specifications cater to different space requirements with options for full-width and densityoptimized HPMs.
Focus on interoperability: A key emphasis with OCP standards is ensuring various vendors' components can work together
seamlessly within a data center.
The DC-MHS project page can be found at: https://www.opencompute.org/index.php/projects/dc-mhs

Complete ORV3 Rack Solution From SupermicroSupermicro has designed and created a prototype OCP ORV3 rack solution based on the NVIDIA GH200 Superchip for AI Training.
As part of this rack design, specific servers were selected.
Scalable Unit Specification
As described below, Supermicro has developed a 256 Node Scalable Unit with 256 Supermicro MGX nodes.

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Figure 3 - Prototype ORV3 Rack with Supermicro AI Servers

Summary
The Open Compute Project is creating efficient designs for data center computing through collaboration. Standards for racklevel computing can increase innovation and lead to more efficient designs from multiple vendors. Supermicro creates racklevel solutions that adhere to these standards and have complete AI or enterprise designs. These rack level designs include
power distribution, servers, and networking, all designed to work efficiently with the defined standards.

Further Information
Supermicro OCP Information: https://www.supermicro.com/en/solutions/ocp
DC-MHS project page https://www.opencompute.org/index.php/projects/dc-mhs
ORV3 Rack Specification: https://www.opencompute.org/documents/open-rack-base-specification-version-3-pdf© 2024 Copyright Super Micro Computer, Inc. All rights reserved

April 2024

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April 20247