KMAX ARM hardware platform

System Configurations

 
OVERVIEW
 
 
BLADE
 
 
CHASSIS
 
 
RACK
 

OVERVIEW

KMAX is a high density system using a converged resource scalability model.  Each compute node supports the delivery of  4 servers that together have both local access to the node level physical storage and networking.   The system is then deployed using the concept of blade computing, in which KMAX delivers four compute units (16 servers) within a single blade. The KMAX chassis can support up to 12 blades, with a standard rack supporting up to 14 chassis. Multiple racks, through appropriate datacentre level connectivity, can be deployed to create an entire data-centre.

 
 

BLADE

 

The KMAX blade provides the physical delivery of the selected compute units and is available with two configurations:

•Full bandwidth with dual QSFP connector, or

•Stackable with single QSFP connector and embedded switch stacking connector

 

Additional custom interface configurations can be also be considered.

 

In addition to hosting the compute units and embedded switch, the blade also provides:

 

•LED status for the power and operation for each compute node

•LED status for the power and operation of the embedded switch

•Recessed on/off switch

•And is hot-pluggable into the chassis backplane

 

Environmental details

 

POWER CONSUMPTION 250W per blade, 165W typical
POWER SUPPLY Power supply is provided by the KALEAO KMAX chassis
SYSTEM COOLING Cooling is provided by the KALEAO KMAX chassis
OPERATING REQUIREMENTS Input: +44 to +58Vdc
OPERATING ENVIRONMENT Operating temperature range    5 ˚C    35 ˚C
Operating humidity range    20%    60%
Storage temperature range    25 ˚C    80 ˚C
Storage humidity range    10%    90%
DIMENSIONS H 0.82" (21mm) x D 25.59" (650 mm) x W 4.92" (125 mm)
WEIGHT 2 Kg
 

CHASSIS

The KMAX hardware is delivered through a 3U rack mountable chassis, supporting up to 12 blades, embedded first level switching and isolated management network requiring an external +48V power source. The chassis is designed to provide the required air flow through, with rear exhausting fans. The cooling capacity is 3000 BTU/s with a front to back flow.

 

Local Management Panel

The front panel has a local LCD screen for immediate status information plus 1 Ethernet, 1 HDMI and 1 USB ports for easy and immediate access to the chassis configurations and status.

 

The entire chassis is controlled through am embedded board management controller that provides local, web and IPMI interfaces for both in-band and out-of-band operational and status management.

 

Back plane

The integrated back plane provides embedded 1Gb/s management network interconnections to the hot-pluggable power distribution and management components.

 

Board Management Controller

There is a independent management 1Gb/s Ethernet network connecting all blades through the backplane, across the chassis. The network is accessible through 6 RJ45 Ethernet ports (1 on the front panel and 5 on the back plane) to enable rack-level stacking of switches and provide interfaces for network based power management controllers and rectifiers.

 

The controller also manages the chassis booting and distributed image distribution capabilities. It also provides the automatic regulation of the fans speed through data collected from various embedded temperatures sensors.

 

Networking Stacking

Each KMAX blade has a 10/40 Gb/s embedded switch that can be stacked to provide different network configurations at chassis level. These configurations depend on the customer’s external networking requirements and on how many blades are installed in the chassis (between 2 and 12 blades).

The KMAX networking solution supports two physical external networking topologies enabling either a resilient A or B network function, or a single network function.  In both cases, the KMAX software defined networking solution can delineate an arbitrary number of virtual networks between application domains, irrespective of the external switches VLAN capability.

KMAX supports three embedded switch stacking options which together determine the flexibility limit of external network connectivity between 2 and 24 40GB/s cable interface.  This enables the customer to choose between total external bandwidth and the cost of associated external switches.

Stacking between blades is supported using the stackable blade only.  A blade can be returned to factory to be reconfigured between being a full-bandwidth and stackable blade. The Dual- and Quad- Stackers can be interchanged and mixed  across the blades available within a chassis.

 

Blade Stacker Configurations

 

No-Stacker. The default configuration provides the full chassis bandwidth of 960Gb/s through two sets of 12 QSPF interface ports.

 

Chassis-Stacker. This stacker can be used to link all embedded switches and expose between 2, 4, 6, 12 active QSPF ports.  Each QSPF pair provide connection to a A and B network, and can reduce the bandwidth and cabling requirement as low as 80Gb/s and two network patch cables.

 

Quad-Stacker. The quad-stacker allows four blades to share the bandwidth of two active QSPF connectors.  The other two connectors on the blade are unavailable and are capped.  This provide a 4:1 blocking ratio and reduces cabling from 8 to 2 patch cables.  A full chassis using 3 quad stackers would provide 240Gb/s total bandwidth. Each QSPF network port exports 2x 10GB/s per blade and requires a external switch or patch cabling that can support the separation of each of the 10Gb/s channels of the QSPF connector.

 

Dual-Stacker. This stacker provides a pair of blades to share the 4x10/40Gb bandwidth each of the two QSPF.  This stacker effectively have the total chassis bandwidth exported to 480Gb/s and the cabling count to 12 while still maintaining the option for independent A+B network.

 

 

Environmental details

 

POWER CONSUMPTION 3000W Max, 2100W Typical
POWER SUPPLY External 48V DC, 60A Max. (OCP / telecommunication standard connections)
Rack level options for full N+1 redundancy and hybrid-eco DC-DC supply
SYSTEM COOLING 4 x 120mm heavy duty fans with PWM fan speed controls
THERMAL DISSIPATION 12.000 BTU per hour max
7000 BTU per hour typical
OPERATING REQUIREMENTS Power supply
  • Input: 100-120/200-277 Vac; 
  • Input frequency: 50 – 60Hz
  • Default Output: ±54 Vdc @ 3500W
Computing Chassis 
  • Input: +44 to +58Vdc, 70A max, 3000W
OPERATING ENVIRONMENT Operating temperature range    5 ˚C    35 ˚C
Operating humidity range    20%    60%
Storage temperature range    25 ˚C    80 ˚C
Storage humidity range    10%    90%
DIMENSIONS

Chassis: H 5.25" (133 mm), W 17.4" (442 mm), D 31.5" (800 mm)

WEIGHT Chassis: fully populated 50Kg

RACK

 

 

Installation in racks

 

KMAX chassis can be hosted in standard 42U racks.

 

KALEAO can also provide:

  • Power supplies for chassis
  • Emerson DCM racks pre cabled with management network and power supplies in place
  • The KMAX system integrated in Iceotope PetaGen Cabinets, to benefit from Advanced Emersion Cooling and push data center energy efficiency to the max