How does discovery gets data from all devices?

[VIshnu Nagaraja]

Hi Everyone

Does discovery gets data through mid server from all devices at a single stretch or its goes through each IP one by one?

[Community Alums]

Hi @VIshnu Nagarajan ,

You have to provide the IPs in a discovery schedule and those IPs should be reachable from MID server.

Discovery process

• Scanning

  Discovery sends a probed called Shazzam to the network to see if commonly used ports are open and if these ports can respond to queries. For example, if Shazzam finds a device that responds on port 135, Discovery knows that it is a Windows server.

• Classification

  If Discovery finds devices or computers, it sends additional probes to find the type of device or the operating system on the device. For example, Discovery sends the WMI probe to a Windows machine to detect the Windows 2012 operating system. Then Discovery uses records called classifiers, which specify the trigger probe or probes that run during the next two phases. If you are using patterns, the classifier specifies a trigger probe that in turn launches a pattern.

• Identification

  Discovery tries to gather more information about the device and then tries to determine if a CI for the device exists in the CMDB. Discovery then uses additional probes, sensors, and identifiers to update existing CIs in the CMDB or create new ones. Identifiers, also known as identification rules, specify the attributes that the probes look at when reconciling data with the CIs in the CMDB. If you are using patterns, Discovery uses the appropriate identification rule for the CI type specified in the pattern.

• Exploration

  The identifier launches additional probes configured in the classifier. These probes are especially designed as exploration probes to gather additional information about the device, like the applications running it, and additional attributes, such as memory, network cards, and drivers. Discovery then creates relationships between applications and devices and between applications. If you are using patterns, the operations in the pattern perform the exploration of the CI.

Mark my answer correct & Helpful, if Applicable.

Thanks,
Sandeep

[Community Alums]

Hi @VIshnu Nagarajan ,

Any update to this ?Any follow-up required? if not

Kindly mark the answer as Correct & Helpful both such that others can get help.

Thanks,
Sandeep

[mrudula gunturu]

what if there is a Serail number that need to be getting through the discovery. how can we get the serial number.

[suvro]

When you create a discovery, you get to select batch size of shazzam probe. Based on that configuration that many IP batches are processed together. Otherwise it goes one by one IP