Step 3: Selecting a major database analysis item

When a database data set is selected, select a major database analysis item.

Procedure

On the "Graph Selection Menu" panel, select one major subject from the seven major database analysis items. For instance, if you want to see the historical trend of the database free space use of the specified database data set group, select DB Free Space.
DB Blocks
Select this item if you want to analyze the historical trend of the database data set group from the aspect of blocks (or CIs). This item applies to HDAM, HIDAM, PHDAM, and PHIDAM (except for the DSG-X) data set groups.
DB Free Space
Select this item if you want to analyze the historical trend of the database data set group from the aspect of free space. This item applies to HDAM, HIDAM, PHDAM, and PHIDAM (except for the DSG-X) data set groups.
DB Segments
Select this item if you want to analyze the historical trend of the database data set group from the aspect of database segments. This item applies to HISAM, HDAM, HIDAM, PHDAM, and PHIDAM (except for the DSG-X) data set groups.
DB Root Segments
Select this item if you want to analyze the historical trend of the database data set group from the aspect of database root segments. This item applies to the primary data set groups of the HDAM and PHDAM databases.
DB Root and Dependent Segments
Select this item if you want to analyze the historical trend of the database data set group from the aspect of database root segments and their dependent segments. This item applies to the primary data set groups of HDAM, HIDAM, PHDAM, and PHIDAM databases.
DB Records
Select this item if you want to analyze the historical trend of the database data set group from the aspect of database records. This item applies to the primary data set groups of HISAM, HDAM, HIDAM, PHDAM, and PHIDAM databases.
Space Allocation
Select this item if you want to analyze the historical trend of the database data set group from the aspect of space allocation. This item applies to all database data sets (HISAM, HDAM, HIDAM, PHDAM, PHIDAM, and index databases) that have entries in the Space Monitor graph records data set (SPMNSPDT).

Space allocation information is obtained from the Space Monitor graph record data set (SPMNSPDT), which is created and maintained by Space Monitor.

The following table shows the major database analysis items and the database types supported.

Table 1. Major database analysis items and supported database types
Major database analysis items HISAM HDAM HIDAM Index
1. DB Blocks N Y Y N
2. DB Free Space N Y Y N
3. DB Segments Y
(see Note a)		 Y
(see Note b)		 Y
(see Note b)		 N
4. DB Root Segments N Y
(see Note c)		 N N
5. DB Root and Dependent Segments N Y
(see Note c)		 Y
(see Note c)		 N
6. DB Records Y
(see Note c)		 Y
(see Note c)		 Y
(see Note c)		 N
7. Space Allocation Y Y Y Y
Notes:
  1. Indicates that some detailed items in this major item group are not applicable or applicable only to the primary data set groups.
  2. Indicates that some detailed items in this major item group are applicable only to the primary data set groups.
  3. Indicates that this major item group is applicable only to the primary data set groups.
  4. PHDAM is included in the HDAM column header.
  5. PHIDAM DSG A-J is included in the HIDAM column header.
  6. PHIDAM DSG-X and PSINDEX are included in the Index column header.