Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved


Chapter 8 Configuring Your Pagestore on z/OS : TIBCO Object Service Broker Pagestore

TIBCO Object Service Broker Pagestore
How is TIBCO Object Service Broker Installed?
When you install TIBCO Object Service Broker, your Pagestore consists of a minimum of three segments.
Segment 0
This is the base segment. It contains the MetaStor, which is made up of definitions, characteristics, access paths, and storage locations of all data and programs.
Segment 0 contains three page data sets when it is distributed.
Segment 1
This segment is set up to help you separate your user data from the dictionary information in segment 0.
Segment 1 contains three page data sets when it is distributed.
Segment 99
This segment is used to hold Security audit data.
What is the Logical View of the Data?
The logical view of the data is stored in the form of tables. The data for a table resides completely within a specific segment and can span all the physical data sets comprising the segment. The definition of the table is stored in segment 0, which is known as the MetaStor.
How is the Data Physically Stored?
Data is ultimately stored within page data sets as 4096 byte pages. Each 4 KB page has a header record that identifies:
The pages are written to the page data sets by the Data Object Broker as part of checkpoint processing.
What Changes Can be Made to the Pagestore?
As the requirements of test or production systems change, some people need to increase or decrease the amount of free space in the Pagestore. Free space can be modified in the Pagestore in three ways:
You can also restore the Pagestore, or segments of the Pagestore, from backup
See Also
TIBCO Object Service Broker for z/OS Managing Backup and Recovery for more information about restoring the Pagestore from backup, and about moving the Pagestore.

Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved