Using Sequential Subset Randomizer

You can use the Sequential Subset Randomizer to group subsets of database records close together.

Introduction to the Sequential Subset Randomizer
You can use the Sequential Subset Randomizer to create a randomizing module which enables fast sequential processing of database records belonging to a subset.
Planning for the Sequential Subset Randomizer
Before applying the Sequential Subset Randomizer, you must plan for the use of Sequential Subset Randomizer.
Sequential Subset Randomizer generation
Sequential Subset Randomizer and its tables are generated by means of the process called SSRGEN. A Sequential Subset Randomizer load module is produced by an assembly and link-edit.
Splitting the unloaded database data set
The FABIUNLS utility is used to speed up the database reorganization while converting databases randomized with DFSHDC40 into databases randomized with the Sequential Subset Randomizer.
Obtaining statistics from each subset with Sequential Subset Statistics
The Sequential Subset Statistics (SS-STATS) routine (FABISTAT) provides database administrators with statistical information, which is useful in determining how much relative space in the root addressable area needs to be allocated to each subset.
Converting databases to HDAM databases randomized with the Sequential Subset Randomizer
Converting existing databases into the databases randomized with the Sequential Subset Randomizer requires a special database reorganization.