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


Chapter 9 Configuring Your Pagestore on Open Systems : TIBCO Object Service Broker Pagestore

TIBCO Object Service Broker Pagestore
How is TIBCO Object Service Broker Installed?
With TIBCO Object Service Broker installed, your Pagestore consists of a minimum of three segments:
Segment 0
This base segment contains the MetaStor, made up of definitions, characteristics, access paths, and storage locations of all data and programs.
Segment 0 contains one page file with 5000 pages when it is distributed.
Segment 1
This segment helps you separate your user data from the dictionary information stored in segment 0.
Segment 1 contains three page files 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 files 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 files as 4096 byte pages. Each 4 KB page has a header record that identifies:
The pages are written to the page files by the Data Object Broker as part of checkpoint processing.
What Changes Can be Made to the Pagestore?
Changes in the requirements of your test or production TIBCO Object Service Broker systems can require you to increase or decrease the amount of free space in the Pagestore. Free space can be modified in the Pagestore in three ways:
Each data table in a TIBCO Object Service Broker system resides on a particular segment and the segment number is associated with the table. You can move the segment as your system needs change.
You can also restore the Pagestore or segments of the Pagestore from backup.
See Also
TIBCO Object Service Broker for Open Systems Managing Backup and Recovery for more information about restoring the Pagestore from backup.

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