You can define a new generation data group from the Remote
Systems view.
Before you begin
You need to be connected to a z/OS system.
About this task
To define a new generation data group in the
Remote
Systems
view, do these steps:
- Select MVS Files and then click Define
Generation Data Group on the pop-up menu. The Define
Generation Data Group window opens.
- Complete the fields on this window as follows:
- Name
- Specify a name for the GDG.
- Limit
- Specify the maximum number, from 1 to 255, of GDSs that can be
associated with the GDG.
- Empty flag
- Specify the action to be taken for the catalog entries for the
GDG base when the number of generation data sets in the GDG base is
equal to the limit value and another GDS is to be cataloged. The disposition
of the actual data sets uncataloged from the GDG base is determined
by the setting of the Scratch flag parameter
for the GDG base. If the Empty flag is set,
all GDS entries are removed from GDG base when creating a new GDS
causes the GDG limit to be exceeded. Otherwise, only the oldest GDS
entry is removed.
- Owner
- Identify the generation data set's owner. If this parameter is
not specified, the user ID is the default owner ID.
- Scratch flag
- Specify the action is to be taken for a GDS when the data set
is uncataloged from the GDG base as a result of empty processing.
If the flag is set, the GDS is deleted from all disks it occupies
when uncataloged from the GDG base, regardless of whether it is SMS-managed
or not. Otherwise, if the data set is a non-SMS managed data set it
is not removed from any of the volumes it occupies, and if the data
set is an SMS-managed data set it is recataloged as a non-VSAM data
set, and is no longer associated with the GDG base. It is not deleted
from any of the SMS-managed volumes it occupies.
- Retention Period
- Specify the retention period for the generation data group being
defined, in the form of either [yyyy/]mm/dd or
days up to 9999. If not specified, the generation data group can be
deleted at any time.
- Click OK to define
the new generation data group.