PRTG Manual: Exchange Database DAG (PowerShell) Sensor

The Exchange Database DAG (PowerShell) sensor monitors the Database Availability Group (DAG) status of a database on an Exchange server via Remote PowerShell.

Exchange Database DAG (PowerShell) Sensor

Exchange Database DAG (PowerShell) Sensor

i_square_cyanFor a detailed list and descriptions of the channels that this sensor can show, see section Channel List.

Sensor in Other Languages

  • Dutch: Exchange Database DAG (PowerShell)
  • French: Exchange base de données DAG (PowerShell)
  • German: Exchange-Datenbank DAG (PowerShell)
  • Japanese: Exchange データベース DAG(PowerShell)
  • Portuguese: Banco de dados DAG Exchange (PowerShell)
  • Russian: DAG базы данных Exchange (PowerShell)
  • Simplified Chinese: Exchange 数据库 DAG (PowerShell)
  • Spanish: Base de datos DAG Exchange (PowerShell)

Remarks

  • This sensor has a high performance impact. Use it with care. We recommend that you use no more than 200 sensors of this sensor type on each probe.
  • The parent device for this sensor must be the Exchange server (version 2010 or higher) that hosts the database that you want to monitor.
  • The Exchange server must be part of a valid DAG. See also the Knowledge Base: Why doesn't PRTG show available databases when adding the Exchange Database DAG (PowerShell) sensor?
  • This sensor requires Remote PowerShell and Remote Exchange Management Shell on the target servers and PowerShell on the probe system.
  • This sensor requires credentials for Windows systems in the settings of the parent device.
  • This sensor requires Exchange user account permissions.
  • This sensor requires the fully qualified domain name (FQDN) of the Exchange server in the settings of the parent device.
  • This sensor requires Microsoft .NET 4.7.2 or later on the probe system.
  • Make sure that the Exchange database is mounted on the target device. Otherwise, you might not be able to properly add the sensor.
  • This sensor only supports the IPv4 protocol.

i_podYou cannot add this sensor to the hosted probe of a PRTG Hosted Monitor instance. If you want to use this sensor, add it to a remote probe device.

Detailed Requirements

Requirement

Description

Remote PowerShell and Remote Exchange Management Shell

This sensor uses PowerShell commands. To monitor Exchange servers with this sensor, you must enable Remote PowerShell and Remote Exchange Management Shell on the target servers that you want to monitor. Also ensure you have installed PowerShell 2.0 or later on the probe system.

i_round_blueIn larger environments, the default memory limit for the remote shell might be insufficient. This might result in the error message The WSMan provider host process did not return a proper response. In this case, increase the memory limit for Remote PowerShell.

i_square_cyanFor more information, see the Knowledge Base: How do I enable and use remote commands in Windows PowerShell? and How can I increase memory for Remote PowerShell?

Exchange user account permissions

This sensor requires a user account that must be either in the Exchange management role group View-Only Organization Management or be in a group with the following assigned management roles:

  • Monitoring
  • View-Only Configuration
  • View-Only Recipients

FQDN

To connect to Exchange servers, this sensor needs the FQDN. In the device settings of the Exchange server, provide the FQDN instead of the IP address.

i_square_cyanFor more information, see the Knowledge Base: I have problems with the PowerShell Exchange sensors, what can I do?

.NET 4.7.2 or later

This sensor requires .NET 4.7.2 or later to be installed on the probe system (on every cluster node, if on a cluster probe).

i_round_redIf the framework is missing, you cannot create this sensor.

i_square_cyanFor more information, see the Knowledge Base: Which .NET version does PRTG require?

Add Sensor

The Add Sensor dialog appears when you manually add a new sensor to a device. It only shows the settings that are required to create the sensor. You can change nearly all settings on the sensor's Settings tab after creation.

i_round_blueThe settings that you select in the Add Sensor dialog are valid for all sensors that you create when you finish the dialog.

Sensor Settings

Setting

Description

Databases

Select the databases that you want to monitor. PRTG creates one sensor for each database that you select.

i_round_blueEnable 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.

Basic Sensor Settings

Click the Settings tab of a sensor to change its settings.

Basic Sensor Settings

Basic Sensor Settings

Setting

Description

Sensor Name

Enter a name to identify the sensor.

Parent Tags

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

i_round_blueThis 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.

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

i_round_blueFor 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:

  • exchange
  • powershell
  • database
  • dag

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 (i_priority_1) to the highest priority (i_priority_5).

i_round_blueUsually, a sensor connects to the IP Address/DNS Name of the parent device. See the device settings for details. For some sensors, you can explicitly define the monitoring target in the sensor settings.

Sensor Settings

Sensor Settings

Sensor Settings

Setting

Description

Database

Shows the name of the database that this sensor monitors.

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

Result Handling

Define what PRTG does with the sensor result:

  • Discard result: Do not store the sensor result.
  • Store result: Store the last sensor result in the \Logs\sensors subfolder of the PRTG data directory on the probe system. The file names are Result of Sensor [ID].txt, Result of Sensor [ID].Data.txt, and Result of Sensor [ID].log. This setting is for debugging purposes. PRTG overwrites these files with each scanning interval.

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

Sensor Display

Sensor Display

Sensor Display

Setting

Description

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.

i_round_blueYou can set a different primary channel later by clicking b_channel_primary 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.
    i_round_redYou 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.

Inherited Settings

By default, all of these settings are inherited from objects that are higher in the hierarchy. We recommend that you change them centrally in the root group settings if necessary. To change a setting for this object only, click b_inherited_enabled under the corresponding setting name to disable the inheritance and to display its options.

i_square_cyanFor more information, see section Inheritance of Settings.

Scanning Interval

Scanning Interval

Scanning Interval

i_square_cyanFor more information, see section Root Group Settings, section Scanning Interval.

Schedules, Dependencies, and Maintenance Window

i_round_blueYou cannot interrupt the inheritance for schedules, dependencies, and maintenance windows. The corresponding settings from the parent objects are always active. However, you can define additional schedules, dependencies, and maintenance windows. They are active at the same time as the parent objects' settings.

Schedules, Dependencies, and Maintenance Window

Schedules, Dependencies, and Maintenance Window

i_square_cyanFor more information, see section Root Group Settings, section Schedules, Dependencies, and Maintenance Window.

Access Rights

Access Rights

Access Rights

i_square_cyanFor more information, see section Root Group Settings, section Access Rights.

Channel List

i_round_blueWhich channels the sensor actually shows might depend on the target device, the available components, and the sensor setup.

Channel

Description

Activation Suspended

If the activation is suspended

  • Up status: No
  • Warning status: Yes

Active Copy

The copy status

  • Up status: Active, Not Active
  • Warning status: Active But Not On The Preferred Server, Could Not Read Activation Preference, Not Active But This Is The Preferred Server

Content Index State

The content index state

  • Up status: Healthy, Not Supported In 2019
  • Warning status: Crawling
  • Down status: Error

Copy Queue Length

The number of items in the copy queue

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 in percent.

Log Copy Queue Increasing

If the log copy queue is increasing

  • Up status: No
  • Warning status: Yes

Log Replay Queue Increasing

If the log replay queue is increasing

  • Up status: No
  • Warning status: Yes

Replay Queue Length

The number of items in the replay queue

Single Page Restore

The number of single page restores

Status

The overall DAG status

  • Up status: Healthy, Mounted
  • Warning status: Disconnected and Healthy, Disconnected and Resynchronizing, Dismounting, Initializing, Mounting, Resynchronizing, Seeding, SeedingSource, SinglePageRestore, Suspended
  • Down status: Dismounted, Failed, Failed and Suspended, Service Down

i_round_blueThis channel is the primary channel by default.

More

i_square_blueKnowledge Base

Why doesn't PRTG show available databases when adding the Exchange Database DAG (PowerShell) sensor?

Where can I find more information about PowerShell sensors?

How can I monitor additional values of Exchange databases?

How do I enable and use remote commands in Windows PowerShell?

How can I increase memory for Remote PowerShell?

I have problems with the PowerShell Exchange sensors, what can I do?

Which .NET version does PRTG require?

What security features does PRTG include?

My PowerShell sensor returns an error message. What can I do?

I get the error "WinRM cannot process the request" when I try to use a PowerShell sensor