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Dell EMC OpenManage Enterprise Version 3.5 User's Guide

Create a device discovery job

NOTE To perform any tasks on OpenManage Enterprise, you must have necessary user privileges. See Role-based OpenManage Enterprise user privileges.

To discover a device:

  1. Click Monitor > Discovery > Create.
  2. In the Create Discovery Job dialog box, a default job name is populated. To change it, enter the discovery job name.
    By default, the dialog box enables you to define properties of similar devices at a time.
    • To include more devices or ranges to the current discovery job, click Add. Another set of the following fields is displayed where you can specify the device properties: Type, IP/Hostname/Range, and Settings.
      WARNING A maximum of 8,000 devices can be managed by OpenManage Enterprise. Hence, do not specify large networks that have devices more than the maximum number of devices supported by OpenManage Enterprise. It may cause the system to abruptly stop responding.
      NOTE When discovering a large number of devices, avoid creating multiple discovery jobs using individual IP address and instead use IP range of the devices.
    • To discover devices by importing ranges from the .csv file. See Specify multiple devices by importing data from the .csv file.
    • To exclude certain devices, remove devices from being excluded, or to view the list of devices excluded from being discovered, see Globally excluding device(s) from discovery results.
  3. From the Device Type drop-down menu, to discover:
  4. In the IP/Hostname/Range box, enter the IP address, host name, or the range of IP address to be discovered or included. For more information about the data you can enter in this field, click the i symbol.
    NOTE
    • The range size is limited to 16,385 (0x4001).
    • IPv6 and IPv6 CIDR formats too are supported.
  5. In the Settings section, enter the username and password of the protocol that is used for discovering the ranges.
  6. Click Additional Settings, to select a different protocol, and change the settings.
  7. In the Scheduling Discovery Job section, run the job immediately or schedule for a later point of time. See Schedule job field definitions.
  8. Select Enable trap reception from discovered iDRAC servers and MX7000 chassis to enable the OpenManage Enterprise receive the incoming traps from the discovered servers and MX7000 chassis.
    NOTE Enabling this setting will enable alerts on the iDRAC (if disabled), and set an alert destination for the OpenManage Enterprise server's IP address. If there are specific alerts that need to be enabled, you must configure these on the iDRAC by enabling the appropriate alert filers and SNMP traps. For more information, see the iDRAC User's Guide.
  9. Select Set Community String for trap destination from Application Settings. This option is available only for the discovered iDRAC servers and MX7000 chassis.
  10. Select the Email when complete check box, and then enter the email address that must receive notification about the discovery job status. If the email is not configured, the Go to SMTP Settings link is displayed. Click the link, and configure the SMTP settings. See Configure SMTP, SNMP, and Syslog alerts. If you select this but do not configure SMTP, the Finish button is not displayed to continue the task.
  11. Click Finish. The Finish button is not displayed if the fields are incorrectly or incompletely filled.
    A discovery job is created and run. The status is displayed on the Job Details page.
During device discovery, the user account that is specified for the discovery range is verified against all available privileges that are enabled on a remote device. If the user authentication passes, the device is automatically onboarded or the device can be onboarded later with different user credentials. See Onboarding devices.
NOTE During CMC discovery, the servers, and IOM and storage modules (configured with IP and SNMP set to "public" as community string), residing on CMC are also discovered and are onboarded. If you enable trap reception during CMC discovery, the OpenManage Enterprise is set as the trap destination on all the servers and not on the chassis.
NOTE During CMC discovery, FN I/O Aggregators in Programmable MUX (PMUX) mode are not discovered.

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