A user finds that a device group is deleted from the Cameras panel on the Cameras tab page of the eSpace IVS C/S client.
Step 1 Log in to the OMU portal of the server.
Step 2 Choose Maintenance > Operation Log.
Step 3 Select the server from System Domains.
Step 4 Enter search criteria and click Search. Then check for the log information shown in Figure 5-2.
Figure 5-2 Operation log
If the log information is not found, contact Huawei technical support engineers.
If the log information is found, go to the next step.
Step 5 Recreate a device group.
1. Log in to the eSpace IVS C/S client and access the Cameras tab page.
2. From the Cameras panel, select the domain to which the device group to create belongs or select a device group.
3. Click New Group. A device group is created.
Right-click the new device group and choose Rename from the shortcut menu. On the page that is displayed, enter the device group name.
4. Drag cameras to the new device group.
The Deployment mode parameter value of the slave domain server is changed from Standby node to Single-node and then changed back to Standby node.