Managing the historical database

This topic covers the maintenance tasks you perform to control historical data and manage the historical database that is used by a PAS.

To control the historical database for the current PAS, use the tasks in the following table.

Task	View or Command	See
Understand how the historical database is structured and how data is recorded to the historical database	Not applicable	Understanding-the-historical-database
View the status of all historical data sets	DSLIST view	Viewing-the-status-of-historical-data-sets-DSLIST-view
Understand what the status of a historical data set means for recording or displaying data	Online Help for the Status field on the DSLIST view	Understanding-the-status-of-a-historical-data-set
Change a data set's recording eligibility	O line command	Changing-recording-eligibility
Select the next data set for recording	F line command	Selecting-the-next-data-set-for-recording
Restrict read and write access to a data set	Q line command	Restricting-read-and-write-access-to-the-active-data-set
Reinstate read and write access to a data set	U line command	Reinstating-read-and-write-access-to-a-quiesced-data-set
Close a data set	F or Q line command	Closing-a-data-set
Empty a data set	R line command	Emptying-a-historical-data-set
Allocate a historical data set to the PAS	ADD primary command or PAS started task procedure	Adding-a-historical-data-set-dynamically or Allocating-historical-data-sets-to-the-historical-database
Permanently save changes made to historical data sets	SAVE primary command	Saving-dynamic-changes-to-the-historical-database
Deallocate a historical data set	D line command	Deallocating-a-historical-data-set
Move data to and from the archive	REPRO or EXPORT function in IDCAMS	Archiving-and-retrieving-historical-data

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