StorageTek 312564001 manual Control region components, Structure of DB2 Manager control region

Control region components

The control region must be initialized in order to enable DB2 Manager to access migrated rows, and to allow migration of rows from DB2 to Archive Manager.

Figure 4 illustrates the structure of the control region and the migrated row access mechanism. This also shows the MLPA/FLPA-resident SQL intercept processor OTDBP300, which must be defined as a DB2 row edit procedure for each table which is to be enabled for migration processing by DB2 Manager. OTDBP300 will pass any request which requires access to a migrated row to the DB2 Manager control region, and wait for processing of the request to complete before returning control to the calling application.

DB2 Manager control region

FLPA/MLPA storage

OTDBP300

SQL

intercept

processor

DB2

control region	tape
housekeeping
task	reader
	tasks
control
region	disk
request
	reader
schedulers
	tasks
control
region
control	writer
processor
	tasks

Archive

Manager databases

Figure 4: Structure of DB2 Manager control region

46	DB2 Manager User Guide
	StorageTek Proprietary