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Teradata Architecture

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Teradata Architecture

  1. 1. 1 Teradata Architecture
  2. 2. 2 Major Components of aTeradata System AMPAMPAMP AMP Parsing Engine(s) (PEs) BYNET Disk Storage Disk Storage Disk Storage Disk Storage Node
  3. 3. 3 The Parsing Engine The Parsing Engine is responsible for: • Managing individual sessions (up to 120 sessions per PE) • Parsing and optimizing your SQL requests • Dispatching the optimized plan to the AMPs • EBCDIC/ASCII input conversion (if necessary) • Sending the answer set response back to the requesting client Session Control Parser SQL Request Answer Set Response BYNET Parsing Engine BYNET AMP AMP AMPAMP Dispatcher Optimizer
  4. 4. 4 BYNET BYNET AMP AMP AMP AMP SQL Request Answer Set Response Parsing Engine Dual redundant, fault-tolerant bi-directional interconnect network that enables: • Automatic load balancing of message traffic. • Automatic reconfiguration after fault detection. • Scalable bandwidth as nodes are added. The BYNET connects all the AMPs on the system: Between nodes, the BYNET hardware carries broadcast and point-to-point communications. On a node, BYNET software and PDE together control which AMPs receive a multicast communication.
  5. 5. 5 The Access Module Processor (AMP) Storing and retrieving rows to and from disks. Lock management. Sorting rows and Aggregating columns. Join processing. Output conversion and formatting. Creating answer sets for clients. Disk space management and Accounting. Special utility protocols. Recovery processing. AMPs are responsible for: SQL Request Answer Set Response AMPs perform all tasks in parallel Teradata’s “Shared-Nothing” Architecture BYNET AMP AMP AMP AMP Parsing Engine
  6. 6. 6 What is a Node ?  Applications, the LAN gateway, and channel-driver software run as processes.  AMPs and PEs are virtual processors (vprocs) which run under Parallel Database Extensions (PDE).  AMPs are associated with virtual disks (vdisks).  A single node is a Symmetric Multi-Processor (SMP) VdiskVdiskVdiskVdisk Channel- Attached Systems CHANNEL LAN PC W/S TERADATA GATEWAY PDE CHANNEL DRIVER UNIX OR WIN 2K BYNET DRIVER AMP VPROC AMP VPROC AMP VPROC AMP VPROC PE VPROC PE VPROC APPLICATION APPLICATION OR UTILITY Incorporates Teradata’s “Shared-Nothing” Architecture
  7. 7. LearnTERADATA Online Contact: USA: +1 732 325 1626 India: +91 800 811 4040 Mail: info@bigclasses.com /bigclasses /bigclasses /bigclasses http://bigclasses.com/teradata-online-training.html
  8. 8. 8 WatchTeradata DEMOVideo OnYouTube www.youtube.com/user/bigclassescom