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 |
