The System Locks window maintains a history of when the system was locked using the Acquire/Release System Lock system job. Each record in the window represents an Acquire/Release System Lock system job. The columns in this window provide the following information:
- Exclusive Lock: When this check box is selected, only one Acquire/Release System Lock system job is part of the scheduled system job.
- Acquired By, Acquisition Type, and Acquired On: These three columns show the user ID of the person who initiated the system lock; how the system lock was effected (for example, JOB indicates that it was via the Acquire/Release System Lock system job); and when the lock was initiated.
- Released By, Release Type, and Released On: These three columns show the user ID of the person who initiated the release of the system lock; how the release of the system lock was effected (for example, JOB indicates that it was via the Acquire/Release System Lock system job); and when the lock was released. If these columns do not show information, then the Acquire/Release System Lock system job is still running.
Right-click this window to display the shortcut menu. This menu contains the common commands along with the following special commands:
- Release All System Locks: This command is only available to users with a security profile that has the System Lock Administrator check box selected (in the Access Level Settings window). When available, this command terminates all currently running Acquire/Release System Lock system jobs. It also sets the MAINTENANCE_FLAG system parameter to 0. This command is typically used when an Acquire/Release System Lock system job fails to run to completion.
- Release Selected System Lock: This command is also only available to users with a security profile that has the System Lock Administrator check box selected. When available, this command terminates the selected currently running Acquire/Release System Lock system job. It also sets the MAINTENANCE_FLAG system parameter to 0. This command is typically used when an Acquire/Release System Lock job fails to run to completion.
Note: Acquire/Release System Lock system jobs typically are run in conjunction with other system jobs. When either of these two commands are executed, only the Acquire/Release System Lock jobs are terminated (and thus the system is again available to all users); any other system jobs currently running will continue to run.
