PRTG Manual: SNMP Dell Hardware Sensor

Dell OpenManage Server Administrator

This sensor requires the Dell OpenManage Server Administrator (OMSA) tool to be installed on the target system. Make sure that you enable SNMP in the OMSA.

For more information, see the Knowledge Base: What do I need to monitor Dell servers?

Category

Select the performance counters that you want to monitor. PRTG creates one SNMP Custom Advanced sensor or SNMP Custom Table sensor with up to 10 channels for each category that you select. If your selection results in more than 10 channels, PRTG creates the corresponding amount of SNMP Custom Advanced sensors or SNMP Custom Table sensors.

Select the counters that you want to monitor with caution. We recommend that you select only a few counters in this dialog. Use the search in the table header to filter for specific counters. Selecting too many counters might result in thousands of sensors or the sensor creation is canceled.

Enable check boxes in front of the respective lines to select the items. Use the check box in the table header to select all items or to cancel the selection. In large tables, use the search function in the upper-right corner.

Sensor Name

Enter a name to identify the sensor. By default, PRTG shows this name in the device tree, as well as in alarms, logs, notifications, reports, maps, libraries, and tickets.

If the name contains angle brackets (<>), PRTG replaces them with braces ({}) for security reasons. For more information, see the Knowledge Base: What security features does PRTG include?

Parent Tags

Shows tags that the sensor inherits from its parent device, parent group, and parent probe.

This setting is for your information only. You cannot change it.

Tags

Enter one or more tags. Confirm each tag with the Spacebar key, a comma, or the Enter key. You can use tags to group objects and use tag-filtered views later on. Tags are not case-sensitive. Tags are automatically inherited.

It is not possible to enter tags with a leading plus (+) or minus (-) sign, nor tags with parentheses (()) or angle brackets (<>).

For performance reasons, it can take some minutes until you can filter for new tags that you added.

The sensor has the following default tags that are automatically predefined in the sensor's settings when you add the sensor:

• dell

Priority

Select a priority for the sensor. This setting determines the position of the sensor in lists. The highest priority is at the top of a list. Choose from the lowest priority () to the highest priority ().

Interface

Shows the name of the interface (performance counter) that this sensor monitors.

PRTG shows this value for reference purposes only. If you need to change this value, add the sensor anew.

Unit String

Define the unit of the numeric data that the sensor receives at the specified OID. Enter a string.

Multiplication

If you want to multiply the received data with a certain value, enter the multiplier. Enter an integer.

Division

If you want to divide the received data by a certain value, enter the divisor. Enter an integer.

If Value Changes

Define what the sensor does when its value changes:

• Ignore (default): Do nothing.

• Trigger 'change' notification: Send an internal message that indicates a change.
  In combination with a change trigger, you can use this to trigger a notification if a change occurs.

Primary Channel

Select a channel from the list to define it as the primary channel. In the device tree, the last value of the primary channel is always displayed below the sensor's name. The available options depend on what channels are available for this sensor.

You can set a different primary channel later by clicking below a channel gauge on the sensor's Overview tab.

Graph Type

Define how different channels are shown for this sensor:

• Show channels independently (default): Show a graph for each channel.
• Stack channels on top of each other: Stack channels on top of each other to create a multi-channel graph. This generates a graph that visualizes the different components of your total traffic.
  You cannot use this option in combination with manual Vertical Axis Scaling (available in the channel settings).

Stack Unit

This setting is only visible if you enable Stack channels on top of each other as Graph Type. Select a unit from the list. All channels with this unit are stacked on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so.

Downtime

In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status

[Performance Counter]

The value returned by a specific Dell hardware OID, for example

• Data about the system management software
• Data about system status
• Information about chassis and BIOS
• Various hardware parameters
• Other valuable data