Devices that fail to report back to the Dashboard are considered as:
Overdue - no communication from the device is received within the allotted time period (server)
Offline (server and workstation) - the device is undergoing a managed or scheduled shutdown which was communicated back to the Dashboard
A managed or scheduled shutdown occurs where the user or application calls one of the system shutdown functions generating a system wide WM_QUERYENDSESSION message. Once this message is successfully processed the system then sends a WM_ENDSESSION to end all applications and services.
Where this WM_ENDSESSION message is communicated to the Dashboard the device status is changed to Offline.
If a device is recorded as Offline it is displayed in the Offline Servers or Offline Workstations section of the Dashboard, selectable from the drop-down above the north pane.
Otherwise where a server is overdue it will appear in the Overdue Servers section with an Alert generated.
Please note that although there is a visual indicator where a workstation has not reported in for over one and a half Agent cycles, workstations are not classed as overdue:
If device is shutdown automatically go OFFLINE
To ensure a device is reported as Offline when it undergoes a managed or scheduled shutdown we have included the ability to control the offline reporting behavior, with this configurable both in the Advanced Monitoring Agent and Dashboard (from Agent version 8).
Important: the Offline option is designed for use where the device is regularly shutdown during normal operations. This option should not be enabled where the device runs constantly and any shutdowns may be indicative of a problem.
Advanced Monitoring Agent
- Log onto the device
- Open the Agent (search for Advanced Monitoring Agent or go to Start/All Programs/Advanced Monitoring Agent)
- Enter the password
- OK to login
- Go to Edit Agent Options
- General Settings
- Enable or disable If device is shuliown then automatically go OFFLINE (MAINTENANCE MODE)
- OK to apply
- Log into the Dashboard
- Right-click the device in the north Servers, Workstations or Mixed pane (or from the Server or Workstation drop-down)
- Edit Server or Edit Workstation
- Go to General Settings
- Enable or disable Automatically put the server/workstation in offline mode if it is shutdown gracefully (or equivalent)
- Set Maximum duration for offline mode in minutes (optional, server only)
- OK to save
Maximum Offline Duration (Server only)
Where a device is reported as Offline it will stay in this state on the Dashboard until the next time data is received.
However, there may be instances when a device undergoes a scheduled or managed shutdown but does not come back online (for example, where a device performs a reboot as part of a maintenance event and fails to restart). From Dashboard 6.4 we have included the option to set a Maximum Offline Duration in minutes for servers. When a server is reported offline for longer than the threshold period it is declared overdue and an Alert sent (depending on the configured Alerting behavior).
This option is only selectable where the Automatically put the server in offline mode if it is shutdown gracefully option is enabled and will enforce the minimum 1.5 Agent cycles before reporting as overdue.
Dashboard Offline Server Settings: Pre and Post-Agent 10.4.2
Agent Offline Settings