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The LightConnectTM Fabric V-POD Data Center Architecture


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CALIENT’s LightConnect™ Fabric is a new approach to improving server and storage utilization rates in data centers. It achieves this by allowing Pod resources to be flexibly shared and reassigned at the optical layer in response to the needs of workloads.

This is achieved through a new virtual Pod or V-Pod architecture. In a typical V-Pod, some resources are static while others are dynamic – connected through OCS-enabled LightConnect™ Fabric paths to the spine switches rather than directly or through manual patch panels.

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The LightConnectTM Fabric V-POD Data Center Architecture

  1. 1. SDN at Light Speed Introducing the VPOD: CALIENT Technologies, August 2015 Breakthrough Operational Efficiency Improvement For Data Centers
  2. 2. 2 © 2015 CALIENT Technologies – All Rights Reserved We Improve Data Center Operational Efficiency  Reduced CAPEX & Improved Energy Efficiency • Compute resources can be reallocated and shared at the optical layer, supporting much improved % utilization of server and storage assets. These represent 85% of the DC electronics cost and almost 70% of the energy consumption.  Reduced OPEX and Improved Customer Satisfaction • Automation of Fiber Infrastructure speeds new service provisioning, improves customer satisfaction and retention, supports creation of new on-demand services, improves reliability, eliminates truck-rolls, and lowers workforce cost. Enabling “Lights Out” Data Centers
  3. 3. 3 © 2015 CALIENT Technologies – All Rights Reserved Problem: Poor Compute Resource Utilization The biggest operational efficiency problem in Data Centers Amortized Equipment Cost 1 Power Consumption 2 Sources: (1) James Hamilton, Amazon. (2) The Datacenter as a Computer, Luiz André Barroso, Jimmy Clidaras, Urs Hölzle (Google) Compute Resources = 85% of Electronics Cost & 68% of Energy Problem: Compute Resources are typically less than 40% utilized Massive CAPEX & Energy Waste
  4. 4. 4 © 2015 CALIENT Technologies – All Rights Reserved Why Is Compute Resource Utilization Low?  Large Data Centers are organized into Pods consisting of multiple racks, and sharing a common spine switch.  AKA “Stamps”, Clusters  Favored for performance and maintenance reasons  A large Data Center may have hundreds of PODS  The compute resources within the POD are very tightly coupled for optimum performance with very low latency connections.  Data Center Managers prefer to keep applications within a POD for optimum performance – Resources are typically not shared between PODS  However, compute resource demand requirements for specific applications fluctuates considerably based on time of day, instantaneous events, etc.  As a result, PODs are designed for worst-case (maximum) resource demand so they are considerably under-utilized for a large percentage of the time How can resources be shared between PODs without sacrificing performance??
  5. 5. 5 © 2015 CALIENT Technologies – All Rights Reserved Introducing a Breakthrough Technology CALIENT’s S-Series 3D-MEMS Optical Circuit Switch (OCS)  Up to 320 User Ports – 640 Single Mode Fibers • 320x320, 160x160 options  10, 40, 100 Gbit/s per port and beyond  <50ms Maximum Setup Time Introduces The Ability to Optimize Resources at The Physical Layer  Less than 50ns latency  Less than 3.5 dB Insertion Loss  Ultra low power (<45w), small size (7RU)  TL1, SNMP, OpenFlow APIs Pure Optical-Layer Circuit Switching
  6. 6. 6 © 2015 CALIENT Technologies – All Rights Reserved Back To Our Problem…. How can we share resources between PODs to improve server and storage % utilization without sacrificing performance??
  7. 7. 7 © 2015 CALIENT Technologies – All Rights Reserved CALIENT’s LightConnect™ Switching Fabric OCS-Enabled Virtual PODs (VPODs) Support Resource Sharing  Any resource (Rack, Row, Row Group) can be directly connected to any spine switch at Layer 1 = VPOD!  VPOD always has tightly coupled low-latency resources regardless of size  PODs can expand and contract with compute demand by sharing resources  VPODs can be provisioned manually or in response to DC resource management tools Compute Resources are physically shared between PODs in response to Application/Workload demands CALIENT LightConnect™ Optical Switching Fabric LightConnect™ Optical Fabric ManagerData Center Resource Management Tools/Systems
  8. 8. 8 © 2015 CALIENT Technologies – All Rights Reserved The power of the VPOD architecture is that it is not necessary to over-build every POD with compute resources to handle worst case anticipated demands. Instead, compute resources are shared and reallocated on demand between PODs at the optical layer without any loss of performance. As a result, PODs can be operated at much greater capacity and operational efficiency and this translates directly to lower compute resource CAPEX and power consumption.
  9. 9. 9 © 2015 CALIENT Technologies – All Rights Reserved Economic Benefit of LightConnect™ Fabric Data Center Organized into Dynamic VPODs  A small increase in Server Utilization translates into a huge savings in total data center spending  Model assumes $2B in mega-scale data center spending • 85% of total electronic CAPEX is on server resources • 15% of total electronic CAPEX is on networking  A server utilization increase of less than 10% is equivalent to saving the total CAPEX of the entire data center network Savings is in the $100Ms for a Mega-scale Data Center
  10. 10. 10 © 2015 CALIENT Technologies – All Rights Reserved LightConnect™ Fabric Manager  Provides access to all of the OCS nodes that are part of the flexible LightConnect Fabric topology. • Each VPOD with associated spine switch ports, and each compute resource unit with associated ToR or end-of-row switch ports are defined in the LightConnect Fabric Manager topology and cross-connect management modules. • Resource moves are made simply by connecting the resource to the appropriate VPOD with the Fabric Manager. • In addition to pushing the OCS cross connect state to each of the OCS nodes, the Fabric Manager can trigger the push of configuration changes to the ToR, end-of-row, and spine switches.  Deployment Options: • Can be deployed as a stand-alone solution, allowing data center operators to make changes to the fabric manually • Alternatively, the Fabric Manager can be integrated with existing data center resource management systems via variety of open interfaces including TL1, REST, SNMP, or RPC
  11. 11. 11 © 2015 CALIENT Technologies – All Rights Reserved LightConnect™ Fabric Manager Software Architecture
  12. 12. 12 © 2015 CALIENT Technologies – All Rights Reserved Further Benefits of Optical Network Automation  Accelerate New Service revenue • Provision in seconds instead of days • Create and reallocate capacity on demand • Enhance customer satisfaction and retention  Reduce Operational Expense • Reduce on-facility workforce and truck-rolls • Manage connections from a central offsite operations facility • Support automated entry and updating of facility electronic records  Improve Quality of Service • Minimize human-error scenarios • Accelerate fault detection and isolation during service degradations or outages
  13. 13. 13 © 2015 CALIENT Technologies – All Rights Reserved CALIENT Technologies at a Glance  Headquarters in Santa Barbara, CA, U.S.A. • Atiq Raza (Chairman and CEO) held former roles as CEO of RMI, President and COO of AMD, and CEO ofNexGen • Dr. John Bowers (Co-Founder) is Director of the Institute for Energy Efficiency at University of California Santa Barbara (UCSB)  Optical Circuit Switching market leader. >$400M invested to develop & perfect core 3D MEMS optical technology  2013: Started shipping new S-Series Optical Circuit Switch in volume to one of the largest global cloud data centers • The only Optical Circuit Switch shipping in high volume and tested to rigorous Telcordia GR63 & GR1073 requirements  Data Center applications focus on improving operational efficiency by increasing compute resource utilization  High Growth: In 2015 CALIENT ships our entire 2012 volume every 2 weeks. Driven by Data Center shipments
  14. 14. 14 © 2015 CALIENT Technologies – All Rights Reserved Thank You