Run Discovery

Inventory discovery finds devices as specified by a discovery profile. Run discovery manually, or schedule the discovery.
capm360
Inventory discovery finds devices as specified by a discovery profile. Run discovery manually, or schedule the discovery.
If discovery hangs for more than 10 minutes, the discovery is aborted. A discovery is considered to be hanging when no new devices are discovered within 10 minutes and the state for the discovery profiles have not changed within 10 minutes. An audit event is generated on the Data Aggregator device. If no devices were discovered, the state of the discovery profiles indicates FAILURE. If at least one device was discovered, the state indicates PARTIAL_FAILURE.
The discovered devices and monitored components can take up to 5 minutes to synchronize with
Performance Center
. When the synchronization is complete, the devices and components appear in the Inventory tab.
Manual Discovery
An administrator or a tenant administrator can run manual discovery. To run a discovery as the administrator, first configure the Data Collector for the Default Tenant domain.
Follow these steps:
  1. Go to
    Administration
    , and click the Data Aggregator data source.
  2. Click
    Discovery Profiles
    from the Monitored Inventory menu.
  3. Select one or more discovery profiles, and click
    Run
    .
    The state of the selected profiles must be READY or SCHEDULED.
  4. Click
    Yes
    in the confirmation dialog.
    Discovered devices are added to device collections, which initiates component monitoring and polling.
Scheduled Discovery
You can configure a discovery to run on a daily or weekly schedule. When the discovery is scheduled, the State for the discovery profile is SCHEDULED and the next scheduled run time appears.
To run schedule discoveries, configure the options in the Schedule tab when you create or edit a discovery profile.
View Discovery Results
The discovery results show the number of devices that were discovered during a specific discovery instance. You can view specific details about these discovered devices, including the IP address, model, type, vendor name, location, and protocols.
Follow these steps:
  1. From the
    Discovery Profiles
    list, select a discovery profile, and click
    History
    .
  2. Select a Discovery instance.
  3. (Optional) Filter the Discovered Devices table by device type or state.
    The discovery results appear in the Discovered Devices table.
    The SNMP Profile column shows the highest ranked SNMP profile that the device responded to.
    The State column indicates one of the following states:
    • New
      Indicates a device that was discovered for the first time when this discovery profile was run.
    • Changed
      Indicates that a device type has changed from a previous discovery. For example, a previously discovered pingable device is now discovered as a manageable device. Or a previously manageable device with the device type of Switch has now changed to the device type of Router. Devices with only attribute changes, such as hostname, or system description are not classified as Changed.
    • Unchanged
      Indicates that existing devices have not changed. Existing devices with only attribute changes are also classified as Unchanged. Existing devices that show different IP addresses were discovered and are being monitored with a different IP address. Many devices can respond to multiple IP addresses. 
      CA Performance Management
       maintains the full set of IP addresses for each device.
    • Deleted
      Indicates that the device was deleted from Data Aggregator since the discovery was run.
If a single IP address or hostname that was specified in the discovery profile is not found, the device type indicates Inaccessible.
CA Performance Management
does not report inaccessible devices from IP ranges.
Get a List of Unreachable Devices
If discovery fails for any of your devices, you can access a list of the unreachable devices using the 
discoveryinstances
 rest service.
This method works only when you specify each IP address or host in your discovery profile. This method does not provide a list when you specify an IP range in your discovery profile.
Follow these steps:
  1. View a list of the discovery instances available at the following location:
    http://
    DA_HOST
    :8581/rest/discoveryinstances/
  2. Find the discovery instance that corresponds to when you ran your discovery.
    Example:
    <DiscoveryInstance version="1.0.0">
         <ID>6508</ID>
         <IPSweepStartTime>Mon Sep 18 15:44:31 2017 -0400</IPSweepStartTime>
  3. Note the discovery instance ID.
  4. View the results for your discovery instance at the following location:
    http://
    DA_HOST
    :8581/rest/discoveryinstances/
    DISCOVERY_INSTANCE_ID
  5. View the 
    <UnreachableDevicesList>
     section.
    Example:
    <DiscoveryInstance version="1.0.0">
         <ID>6508</ID>
         <IPSweepStartTime>Mon Sep 18 15:44:31 2017 -0400</IPSweepStartTime>
         <TestedCommProfilesList>
              <TestedCommProfiles>4657</TestedCommProfiles>
              <TestedCommProfiles>4603</TestedCommProfiles>
              <TestedCommProfiles>4656</TestedCommProfiles>
         </TestedCommProfilesList>
         <ProgressPercentage>100</ProgressPercentage>
         <PingResponseDeviceCount>0</PingResponseDeviceCount>
         <StartTime>Mon Sep 18 15:44:31 2017 -0400</StartTime>
         <CompletionTime>Mon Sep 18 15:44:39 2017 -0400</CompletionTime>
         <IPSweepCompletionTime>Mon Sep 18 15:44:39 2017 -0400</IPSweepCompletionTime>
         <CompletionStatus>SUCCESS</CompletionStatus>
         <ProfileID>6507</ProfileID>
         <IPSweepTotalSuccess>0</IPSweepTotalSuccess>
         
    <UnreachableDevicesList>
              <UnreachableDevices>10.255.255.255</UnreachableDevices>
              <UnreachableDevices>192.168.0.0</UnreachableDevices>
              <UnreachableDevices>172.31.255.255</UnreachableDevices>
              <UnreachableDevices>192.168.255.255</UnreachableDevices>
              <UnreachableDevices>10.0.0.0</UnreachableDevices>
              <UnreachableDevices>169.254.0.0</UnreachableDevices>
              <UnreachableDevices>169.254.255.255</UnreachableDevices>
              <UnreachableDevices>172.16.0.0</UnreachableDevices>
         </UnreachableDevicesList>
         <NewAccessibleOnlyButDeletedDevicesCount>0</NewAccessibleOnlyButDeletedDevicesCount>
         <Item version="1.0.0">
              <CreateTime>Mon Sep 18 15:44:31 2017 -0400</CreateTime>
         </Item>
    </DiscoveryInstance>