Discovery status

The Discovery status provides a summary of a Discovery launched from a schedule. You can also cancel a Discovery that is in progress from the status form.

Note:

Discovery schedules that have no status updates for a over a defined number of minutes are analyzed automatically by the Discovery Status Monitor job. By default, this job applies to Discovery schedules that discover configuration items. For more information, see the Discovery Status Monitoring Job article in the Now Support Knowledge Base.

To access the Discovery Status form, navigate to Discovery > Status and open the status record for a Discovery.

Each record in the Status list represents the execution of a Discovery by a schedule and displays such high-level information as the date of the Discovery, the mode, the number of probe messages sent to devices, and the number of sensor records that were processed. A status record contains data that can help you troubleshoot a failed discovery. Use this data to troubleshoot the behavior of individual probes and sensors or even run those elements separately. Use the status controls to enter probe/sensor threads at any point for a specific Discovery, and then follow the process in either direction. You can also clearly see which classification probe ran and discovered a particular device by viewing the classification probe column in the device list.

• Refresh: Refreshes the related tabs, including the Discovery Log and ECC Queue for discoveries still in progress.
• Discovery timeline: The Discovery timeline is a graphical display of a discovery, including information about each probe and sensor that was used.
• Discovery log entries: The Discovery Log shows information such as classification failures, CMDB updates, and authentication failures. A Discovery Log record is created for each action associated with a discovery status.
• ECC queue entries: Entries in the ECC queue provide you with a connected flow of probe and sensor activity, as well as the actual XML payload that is sent to or from an instance.
• Device history: The device history provides a summary of all the devices scanned during discovery, and what action sensors took on the CMDB.

Note:

By default, only 30 days of Discovery records are displayed in the status list at a time.

The following Discovery status record shows the discovery of a load balancer using a pattern.

Figure 1. Example Discovery status record

Field	Description
Number	An auto-generated number for the record.
Description	How this discovery was run. Typically, the description is Scheduled, but if you ran discovery manually from a Schedule, the record would show Discover Now in the Description field.
Schedule	The name of the Discovery schedule.
State	The state of the discovery: Starting Active Completed Canceled
Started and Completed	The number of probes started and completed during discovery.
Source	Optional read-only field that shows the source of the discovery, such as Schedule Discovery, or Quick Discovery. If the source of the Discovery was from an API call, the source is DiscoveryAPI.
From Schedule (Read-only schedule data)
Discover	Shows the Discovery type. The possible types are: Configuration items, IP addresses, Networks, or Processes/Connections (ADM).
Max Run Time	Displays the maximum amount of time Discovery was permitted to run on this schedule.
Log state changes	Indicates that state changes were logged during this Discovery. These states can be seen in the Last and Current fields in theDiscovery Devices list in this form.

• Cancel a Discovery from a Discovery Status
  You can manually cancel a discovery while it is in progress from the Discovery Status record.
• Discovery timelines
  A Discovery timeline generates a graphical display of a Discovery Status record, including information about each probe and sensor that was used in the discovery.
• The ECC queue for Discovery
  The External Communication Channel (ECC) Queue is a connection point between your ServiceNow instance and other systems that integrate with it, most commonly a MID Server.
• Discovery device history
  The Devices Related list in the Discovery Status form provides a summary list of all the devices scanned.

Related tasks

• Schedule a horizontal discovery