DTA -- Dynamic Tape Accelerator

Speeds up write-to-tape I/O

Dynamic Tape Accelerator (DTA) - Speeds up write-to-tape throughput on OpenVMS (VAX and Alpha), speeding up OpenVMS backup, completely eliminating tape I/O bottle necks. Write to tape caching and an optional data compression guarantee the best possible tape performance.

DTA uses a proprietary I/O intercept routine to monitor, cache, and efficiently deliver data to your tape drive. Write-to-tape caching and optional data compression guarantee that your tapes will truly stream!

DTA consists of two components:

• DTA command files, which monitor tape operations and process commands. The DTA command files are used by the system manager to monitor operations and communicate with the DTA device driver. By entering appropriate commands, the system manager can monitor, accelerate, and deaccelerate tape devices.
• DTA device driver, which intercepts I/O operations to a device and routes the I/O request to the DTA caching system, where they are monitored and accelerated.

DTA includes valuable features to enhance your system.

• The Data Compression option can be used with the DTA ACCEL command. Compression removes redundant data, which enables less tape to be used when backing up.
• The MONITOR procedure allows you to monitor activity of a tape device. When the PREACCEL command is executed, the non-accelerated data transfer rate to tape is displayed. When the ACCEL command is executed, the DTA accelerated data transfer rate is displayed.

• Online Documentation
  

• Download DTA Demo (about 1MB)
  (Note: After the download, to install DTA you need to follow the online documentation exactly!)

Questions or concerns?

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