How to use LR for Volumetric testing of SQL 2000 DB?

Application in picture is a batch processing application.
Main characterisitics required for the application are -
* Fixed Job execution timeframe
* Data intensive processing

Performance Goals are -
* Availibility/Reliability
* Response Time
* Accuracy

Crucial Resources are -
* Commit and Rollback segments Indexes
* clusters
* hashing
* Memory Data block size
* Buffer cache size
* Well-tuned SQL statements

Need to process Millions of data records in fixed time frame.

Is LR proper tool for this kind of scenario?
If yes, in what wway it can be used?

Thanks in advance,