Viewing and updating FSEAP and FSE chain within block or CI
The Free Space Element Chain panel shows a free space element anchor point (FSEAP) and a list of free space elements (FSEs). You can use the displayed chain to repair a database.
Procedure
Access this panel by selecting the FSE chain option on the Initial selection panel.
The first few lines on this panel provide information that identifies the database and data set. The lower part of the panel shows the FSE anchor point and the chain of free space elements. You can overwrite the values that are shown in Next-FSE-ofst or FSE-length to repair the database. Press Enter to accept your changes. Be careful when you modify these fields.
This panel contains the following fields:
- DBD
- The name of the database, or for a partitioned database, the name of the partition.
- DSG
- The data set group number or, for a DEDB, the area number.
- DBORG
- The database organization type.
- DSORG
- The organization type of the data set.
- CI addr or Blk addr
- The address of the control interval or block.
- DS name
- The name of the data set.
- FSE-RBA
- The relative byte address of the FSE.
- >4G
-
- N
- Indicates that the source RBA is in the first 4 GB of the database.
- Y
- Indicates that the source RBA is in the second 4 GB of an OSAM database.
- Next-FSE-ofst
- The value of the next free space element offset.
- FSE-length
- The length of the free space element.
What to do next
Use PF3 to return to previous menus.
Important: Be sure to run the Pointer Checker utility after
you change data or pointers. If errors are found, restart IMS Database
Repair Facility and immediately select
option 3. Undo changes from
the Main menu.
The changes that you made are recorded in the Undo file until you
select option 2. View/Update database the
next time.