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The SambaRack SN40L-16 system comprises a compute node, integrated networking, and power distribution units (PDUs). The standard configuration includes two PDUs; a four-PDU configuration may be provided for site-specific requirements.

SambaRack SN40L-16 rack components

This table lists the primary components included in each rack. These components provide compute capacity, networking, management access, and redundant power for the SambaRack SN40L-16 system.
ComponentQuantityDescription
SambaRack SN40L-16 node1Accelerator node providing compute resources
Juniper QFX5130 Ethernet data switch1High-bandwidth switch providing user access to inference services
Juniper EX-series access (management) switch1Dedicated network for system and component management
Lantronix serial console server1Provides CLI access to manage all rack components
Power Distribution Units (PDUs)2Provides redundant power for system operation; some configurations include 4 PDUs.

SambaRack SN40L-16 Node components

This table details the components that make up a single SambaRack SN40L-16 node. These components deliver accelerator compute capability and support system management and monitoring.
ComponentQuantityDescription
SambaRack SN40L-2 modules (XRDUs)8Each module contains two Reconfigurable Data Units™ (RDUs), providing a total of 16 RDUs per node. Each XRDU includes a Baseboard Management Controller (BMC) for power control and telemetry. SN40L-2 modules are also referred to as XRDUs, a generation-agnostic term.
SambaRack SN40L-H host module1x86-based server running Red Hat® Enterprise Linux®, used to manage accelerator node operations
The figure below shows the location of these components within the SambaRack SN40L-16 rack.
LocationComponent
1(8) SN40L-2 modules
2(1) SN40L-H host module
3(2) Power Distribution Units
4(1) Juniper QFX5130
5(1) Juniper EX-series switch
6(1) Lantronix Serial Console Server

SambaRack administration

SambaRack administration is through a combination of SambaRack Manager which is a tool for centralized administration of SambaRacks and direct administration of individual devices.

SambaRack software

Software for SambaRack includes the following items:
  • SambaRack SN40L-H host OS: x86 host modules run Red Hat® Enterprise Linux® (RHEL).
  • SambaRack Manager: utility for managing and updating SambaRack infrastructure and components.
  • SambaNova Runtime: responsible for executing training and inference requests, transferring data, managing hardware components, error handing, resource management and more. SambaNova Runtime is installed and executed on SN40L-H host modules.