Data Stream Architecture provides faster data backups, improved usability and higher security.
Guaranteeing that current, reliable data is always available to users is essential for any business. Teradata offers complete end-to-end backup, archive and restore (BAR) solutions that enable organizations to protect their valuable data assets in case of corruption, system failure or disaster.
The newest solution is Teradata® Data Stream Architecture (DSA). Optimized for communication and transfer of data between the Teradata Database and third-party backup applications, Teradata DSA allows fast and secure backup and restore windows. An advanced feature set provides better support of data protection requirements, while a new architectural framework delivers improved scalability, performance and usability. Teradata DSA has been designed as the eventual replacement for the Teradata Archive Utility (ARC) and the Tiered Archive/Restore Architecture (TARA) graphical user interface.
Giant Leap Forward
The key features of Teradata DSA were developed from the ground up to deliver a major advance in BAR, including a significant improvement in backup efficiency. The architecture facilitates many valuable benefits:
Fast Data Streams
A streaming protocol design is at the center of Teradata DSA. The architecture optimizes data flow in and out of the Teradata Database by allowing multiple parallel streams with large buffers and very low latency. When using a target that supports high-
sustained write performance, the transfer rates for backups have been up to five times faster than ARC-based backups. Full restores to the same Teradata system have demonstrated performance increases greater than two times. These faster data stream rates enable shorter backup and restore windows, reducing the impact of BAR operations on critical database systems.
Overall efficiency is upgraded with the introduction of incremental backups. Teradata DSA enables time savings by sending only new or changed data blocks to a backup target instead of the entire object or database. This new feature to Teradata BAR solutions reduces backup windows and increases the number of backups that can be stored on an existing infrastructure. Incremental backups are ideal for improving effective backup performance without expanding existing solutions.
The administration or BAR Setup portlet defines and configures the physical infrastructure, including the Teradata systems to be protected, the media servers to be used and the backup application details. (See figure.) The BAR Operations portlet is the primary day-to-day window into BAR activities. It enables the creation of backup or restore jobs, selection of objects or databases to include in the job, and job status. A command-line option is available for direct editing of scripts, which are now stored as XML files.
Moving to Viewpoint portlets leverages native security mechanisms for granular user control and access. It also allows integration with enterprise authentication protocols to enable user authorization and password security policies.
Advanced Features for Better Protection
Teradata DSA is the most significant BAR software release this decade, delivering new levels of performance and storage utilization. Teradata DSA offers a more advanced feature set to better meet end-user data protection requirements. These features make BAR easier to use while also offering enhanced efficiencies. It’s never been easier to protect your business’s most valuable asset—your data.
Alex Console is the director for the Client and Platform Engineering Group at Teradata Labs.
Barry Silvester is the director of product management for Platform Infrastructure, which includes the Teradata managed servers and BAR program.