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Task 16:Maintaining the ATCINFO File
This task describes how to maintain the ATCINFO file.
Getting Ready
Maintenance for the ATCINFO file (DBEnvironmentNameCR) may be necessary
in either of the following situations:
* If a crash occurs while the ATCINFO file is being modified. This
may be the case if a crash takes place when the IMAGE/SQL
administrator is in the midst of an IMAGE/SQL utility command that
updates the ATCINFO file. When this occurs, the RECOVER command
can be used to reconstruct the ATCINFO file.
* If the ATCINFO file contains too much free space. This may be the
case if multiple databases are attached and then some are detached
from the DBEnvironment. When this occurs, the RECOVER command can
be used to compact the data in the ATCINFO file and return the
free space to the file system.
Performing the Task
To recover the ATCINFO file associated with the PartsDBE DBEnvironment,
issue the following commands:
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| |
| :RUN IMAGESQL.PUB.SYS |
| >>SET SQLDBE PartsDBE |
| >>RECOVER |
| Checking physical file consistency and recovering free space.|
| Deleting unused mapped table entries. |
| Checking external cross references. |
| >> |
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Task Reference
* For the syntax of the RECOVER command, refer to Chapter 4,
"IMAGE/SQL Utility Commands."