Locking and Unlocking System Projects

Overview

You can lock a system project so that it becomes read-only for any other user whether the system project is already open in the Topology Manager or they open it after you locked it. A system project that is locked is indicated by a lock icon in the SYSTEM PROJECT pane.

Use this functionality when you are working on a system project and do not want anyone else to be able to modify it or start an operation that may prevent you from completing an action.

Certain actions can still be performed by other users on a locked system project.

Only the user who locked the system project can unlock it.

Other users connected to the same system project are informed about the locked/unlocked condition in the ACTIVITIES tab.

Authorized Actions on Locked System Projects

While a system project is locked, other users can:

View it in read-only mode. Changes that you make are visible to others connected to the same system project.
Switch from offline to online mode and vice versa.
Open the control project of a PAC in read-only mode.

Implicit System Project Lock

The use of certain commands automatically locks the system project while the operation is in progress (for example, exporting the system project or the process of opening a control project after clicking Edit Control Project).

The temporary lock may prevent you from completing certain actions like opening a control project or saving changes when closing a control project.

The temporary lock comes into effect whether the same user or several users perform actions concurrently on the same system project.

The lock is automatically released when there is no more conflict (for example, when the export operation is completed or the control project is open).

NOTE: When a system project is locked automatically, the lock icon does not appear in the SYSTEM PROJECT pane but dialog boxes open to inform you.

Locking a System Project

To lock a system project, proceed as follows.

Step	Action
1	With the system project open, right-click the system project name in the SYSTEM PROJECT pane and select Lock . Result: The system project is locked and a red lock icon appears next to its name in the SYSTEM PROJECT pane. Other users cannot modify the system project anymore.

Unlocking a System Project

To unlock a system project, proceed as follows.

Step	Action
1	With the system project open, right-click the system project name in the SYSTEM PROJECT pane and select Unlock . Result: The system project is unlocked and the red lock icon is removed. Other users can modify the system project.