To view the disk storage information for a database:
Select an Adabas database in tree-view and expand it.
Select Disk Storage in tree-view.
The Containers of the database are displayed in detail-view.
Note:
For mainframe databases, a dropdown list in detail-view allows you
to choose between a Containers, Unused
Storage, and Volume Distribution display. The
default is set to Containers.
To view RABNs for a mainframe database:
Select an Adabas database in tree-view and expand it.
Select Disk Storage in tree-view and right-click it.
Select on the drop-down menu.
The ASSO/DATA Block information is displayed in detail-view
Select the RABN type (ASSO or DATA) in the selection box and enter the RABN number in the text box.
Enter the offset and length values to determine starting point and length of the RABN display.
The specified RABN block from the Associator or Data Storage in hexadecimal format is displayed. Both the hexadecimal data and its alphanumeric equivalent are displayed. If the block is not assigned, zeros are displayed.
The information is organized under the following headings:
Modifying a Data Storage or Associator Dataset for Mainframe Databases
Modifying a Data Storage or Associator Dataset for Open Systems Databases
The Associator and Data Storage dataset sizes must be added separately. It is not possible to add both with a single operation.
To add a DATA or ASSO dataset:
Backup the database using the ADASAV utility. This step is optional, but recommended.
Select Disk Storage in the expanded tree-view of the selected database.
The default setting in the of the detail-view is Containers. Size information, RABN range and device type of each extent are displayed in a table in detail-view.
Click .
In the resulting detail-view panel, enter the required parameters to add either a DATA or ASSO dataset.
Click to save your modifications or to return to the previous panel.
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Warning: After an Add operation has completed, the nucleus session will be automatically terminated to allow for the necessary formatting of the Associator or Data Storage. If the new dataset is not formatted as required, an I/O error will occur once the nucleus tries to use it and the nucleus will ABEND. |
The following additional two steps are required for mainframe
databases:
Allocate the dataset with the operating system and format the additional space using the ADAFRM utility.
Add necessary JCL/JCS to all Adabas nucleus and Adabas utility execution procedures.
For more information, please refer to ADD: Add Dataset in section ADADBS: Database Services in the Adabas Utilities documentation.
The Associator and Data Storage dataset sizes must be modified separately. It is not possible to modify both with a single operation.
To increase or decrease a DATA or ASSO dataset:
Backup the database using the ADASAV utility. This step is optional, but recommended.
Select Disk Storage in the expanded tree-view of the selected database.
The default setting in the dropdown list of the detail-view is Containers. Allocation, size information, RABN range and device type of each extent are displayed in a table in detail-view.
Click or .
In the resulting detail-view panel, enter the required parameters to increase/decrease either a DATA or ASSO dataset.
Click to increase/decrease the dataset or to return to the previous panel.
|
Warning: Increasing a DATA or ASSO dataset will result in the logical and physical sizes of the database being different. After an Increase operation has completed, the nucleus session will be automatically terminated to allow for the necessary formatting of the Associator or Data Storage. If the additional space is not formatted as required, an I/O error will occur once the nucleus tries to use it and the nucleus will ABEND. |
Format the additional space using the ADAFRM utility.
For more information, please refer to INCREASE: Increase Associator Data Storage in section ADADBS: Database Services in the Adabas Utilities documentation.
Note:
For detailed information please refer to the Adabas for
Open Systems documentation.
To add a new extent to an exisiting dataset:
Select Disk Storage in the expanded tree-view of the selected database.
The Containers of the database are displayed in detail-view.
Click .
In the detail-view panel, mark the dataset you want to modify and click .
The Add Container panel is displayed in detail-view.
Select the file type you want to add and enter the path. Click to confirm.
Format the additional space using the ADAFRM utility.
To modify container settings:
Select Disk Storage in the expanded tree-view of the selected database.
The Containers of the database are displayed in detail-view.
Click .
In the detail-view panel, mark the dataset you want to modify and click .
The Modify Container Settings panel is displayed in detail-view.
Edit the container settings according to your requirements. Click to confirm.
To remove a container
Select Disk Storage in the expanded tree-view of the selected database.
The Containers of the database are displayed in detail-view.
Click .
In the detail-view panel, mark the dataset you want to modify and click .
The Remove Container panel is displayed in detail-view.
Confirm that you want to remove the container you have marked by clicking .
Important:
Please note that removing the last Associator or Data
Storage container will make the database unusable.
Space allocated for utility operations that ended abnormally remains unavailable unless it is intentionally recovered.
To recover unused storage:
Select Disk Storage in the expanded tree-view of the selected database.
Select Unused Storage in the dropdown list in the detail-view panel.
The resulting table shows the device type where the unused blocks are located, the number of unused storage blocks and cylinders, and the range of unused block numbers.
Click to recover unused storage space.
To review the volume distribution for a mainframe database:
Select Disk Storage in the expanded tree-view of the selected database.
Select Volume Distribution in the dropdown list in the detail-view panel.
The Volume Distribution panel is displayed in detail-view. The file extents of the volume are shown indicating the RABN range and I/O count in each file.
