PRTG Manual: WMI Volume v2 Sensor

Credentials

This sensor requires credentials for Windows systems.

Access rights

The user account that connects to the target system must be a member of the Remote Management Users group and have the required permissions for the WMI namespace root\CIMv2.

• WMI namespace root\CIMv2 and subnamespaces permissions: Enable Account and Remote Enable. You can configure these permissions in the Windows Management console.

For more information, see the Knowledge Base: How can I use a non-administrator Windows account for WMI monitoring via the WSMan protocol?

Windows Compatibility Options

This sensor uses only WSMan Port and Connection Security from the Windows Compatibility Options.

Add Sensor dialog

The name and description of the volume in the Add Sensor dialog appear in the language of the device's Windows installation.

Meta-scan

This sensor uses the meta-scan feature. After sensor creation, some settings might appear for reference purposes only.

IPv6

This sensor supports IPv6.

Performance impact

This sensor has a low performance impact.

Limits

This sensor has predefined limits for one or several metrics.

Volume Name

Shows the volume name at the time of discovery.

Volume Label

Shows the volume label at the time of discovery.

Drive Type

Shows the drive type at the time of discovery.

File System

Shows the file system at the time of discovery.

Drive Letter

Shows the drive letter at the time of discovery.

Device ID

Shows the volume globally unique identifier (GUID) path at the time of discovery.

If the device ID changes after sensor creation, the sensor might enter the Down status. You might need to manually change this setting. Click the lock icon to edit this setting. We strongly recommend that you only change it if the Paessler support team explicitly asks you to do so.
Wrong usage can result in incorrect monitoring data.

Primary Channel

Select a channel from the list to define it as the primary channel. In the device tree, PRTG displays the last value of the primary channel 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 this sensor shows different channels:

• 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 select Stack channels on top of each other above.

Select a unit from the list. PRTG stacks all channels with this unit 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.

Result Handling

Define what PRTG does with the sensor result:

• Discard result (default): Do not store the sensor result.
• Store result: Store the sensor result and the last response in the \Logs\sensors subfolder of the PRTG data directory on the probe system. The file name is Result of Sensor [ID].log. This setting is for debugging purposes. PRTG overwrites this file with each scanning interval.

This option is not available when the sensor runs on the hosted probe of a PRTG Hosted Monitor instance.

In a cluster, PRTG stores the result in the PRTG data directory of the master node.

Free Bytes

The free bytes

Free Bytes %

The free bytes (%)

This channel has default limits:

• Lower warning limit: 25%

• Lower error limit: 10%

This channel is the primary channel by default.

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.