Closing a data set

There are a number of ways to close a data set, depending on the data set's current status.

A closed status for a data set is important because it enables a data set for reading. The ability to write to a closed data set is controlled by the O line command; see Changing-recording-eligibility.

Also, a data set must be closed before the following historical management tasks can be performed:

The following table describes how to close a data set for each Status field value.

Closing a historical data set

Status	Command	Reference
Active	F or Q line command to change the Active status to Qscd U line command to change the status from Qscd to Closed	Selecting-the-next-data-set-for-recording or Restricting-read-and-write-access-to-the-active-data-set and Reinstating-read-and-write-access-to-a-quiesced-data-set
Closed	O line command to set recording eligibility	Changing-recording-eligibility
Error	R line command to make the data set eligible for recording again The R line command empties the data in the data set. If you can determine a reason for the error condition based on diagnostic messages, you may be able to archive the data set before resetting it.	Emptying-a-historical-data-set
Open	None The data set is pending a closed condition and should close automatically unless an error condition is present. An Open status rarely occurs. If this status is retained for more than one interval, an I/O error could be keeping the data set from closing.	Operator's console or job log for messages that might indicate a reason why the data set cannot close
Qscd	U line command to change the Qscd status to Closed	Reinstating-read-and-write-access-to-a-quiesced-data-set

Closing a data set

On this page