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Data Set in Use

Only one user or job can have a data set or member open in edit mode at one time, but more than one user can open a data set or member in view mode. If a user opens a data set or member in edit mode, no other user can edit or view that data set. However, if a user opens a data set or member in view mode, another user can open that data set in either edit or view mode.

If a user attempts to open in edit mode a data set or member that is already open in either view or edit mode, the Data Set in Use dialog displays. This dialog displays the following information about the job currently accessing the data set:

Job Name

Name of the job that has the data set open in view or edit mode

Major Enqueue Name

The data set resource name used by dynamic file allocation

Enqueue Type

The enqueue type is one of the following:

SHR

File can be allocated by other users

EXCL

File is allocated exclusively to the job

System

Name of the LPAR on which the resource is allocated

To exit the Data Set in Use dialog, do one of the following:

More information:

Open a Data Set or Member

Change Log