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Active Administrator 8.7 - User Guide

Active Administrator Overview User Provisioning Certificates Security & Delegation  Active Directory Health
Switching to Active Directory Health Using the Active Directory Health landing page Installing Active Directory Health Analyzer agents Using the Active Directory Health Analyzer agent configuration utility Excluding domain controllers Managing the Remediation Library Analyzing Active Directory health Analyzing Azure Active Directory Managing Active Directory Health Analyzer alerts Managing alert notifications Pushing alerts to System Center Operations Manager and SNMP managers Managing monitored domain controllers Managing data collectors Active Directory Health Templates Managing Active Directory Health Analyzer agents Using the Troubleshooter Recovering Active Directory Health data
Auditing & Alerting Group Policy Active Directory Recovery Active Directory Infrastructure DC Management DNS Management Configuration
Using the Configuration landing page Managing tasks Defining role-based access Setting email server options Configuring SCOM and SNMP Settings Setting notification options Setting Active Template options Setting agent installation options Setting recovery options Setting GPO history options Setting certificate configuration Setting service monitoring policy Managing archive databases Migrating data to another database Setting a preferred domain controller Setting up workstation logon auditing Managing configuration settings Setting user options Managing the Active Directory server
Diagnostic Console Alerts Appendix
Domain controller alerts
Active Directory Certificate Services service is not running Active Directory Domain Services is not running Active Directory Web Services service is not running Consecutive replication failures DC cache hits DC DIT disk space DC DIT log file disk space DC LDAP load DC LDAP response too slow DC Memory Usage DC properties dropped DC RID pool low DC SMB connections DC SYSVOL disk space DC time sync lost Detected NO_CLIENT_SITE record DFS Replication service not running DFS service is not running DFSR conflict area disk space DFSR conflict files generated DFSR RDC not enabled DFSR sharing violation DFSR staged file age DFSR staging area disk space DFSR USN records accepted DFSRS CPU load DFSRS unresponsive DFSRS virtual memory DFSRS working set DNS Client Service is not running Domain controller CPU load Domain controller page faults Domain controller unresponsive File Replication Service is not running File replication (NTFRS) staging space free in kilobytes GC response too slow Group policy object inconsistent Hard disk drive Intersite Messaging Service is not running Invalid primary DNS domain controller address Invalid secondary DNS domain controller address KDC service is not running LSASS CPU load LSASS virtual memory LSASS working set Missing SRV DNS record for either the primary or secondary DNS server NETLOGON not shared NetLogon service is not running Orphaned group policy objects exist Physical memory Power supply Primary DNS resolver is not responding Secondary DNS resolver is not responding Security Accounts Manager Service is not running SRV record is not registered in DNS SYSVOL not shared W32Time service is not running Workstation Service is not running
Domain alerts Site alerts Forest alerts Azure Active Directory Connect alerts
Event Definitions PowerShell cmdlets

Using components

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Diagnostic Console > Using components

Using components

The components on the Diagnostic Console home page correspond to the elements of the domain controller that is being diagnosed. Components change color to alert you to specific performance problems.

To see an explanation of the performance, hold the cursor over the component to open a tool tip. To see a definition, click the component to open a help box. From the help box, you can open the associated drilldown to view the associated statistics in table and graph format. See Using drilldowns.

Each component has a right-click shortcut menu from where you can open a help box, show the history in a graph, view details (opens the associated drilldown), restore default settings, view metrics, and view properties.

The home page for the selected domain controller displays the following types of components:

Network components

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Diagnostic Console > Using components > Network components

Network components

To see a definition, click the component to open a help box. From the help box, you can open a drilldown to view the associated statistics. See Using drilldowns.

Table 123. Network components

Network component

Description

Connected Users

The number of clients connected to this server. It does not show users connected to other applications that may be running on this computer; for example, Microsoft® Exchange or SQL Server®. It only shows the users that have established a Microsoft networking connection to the system. This component opens the Network drilldown.

LDAP Client Sessions

The number of LDAP clients that have sessions with this domain controller. This component opens the LDAP drilldown.

Ping Time

The ping time, or average round trip time, from the computer where the Diagnostic Console is running to the connected domain controller. This component opens the Network drilldown.

LDAP Bind Time

The time it took for the last LDAP client to bind to this domain controller. This component opens the LDAP drilldown.

LDAP Search Time

The time taken for a simple LDAP search against the domain controller. The time taken to bind to LDAP is not included in this value, providing a better representation of LDAP search performance.

Theoretical Bandwidth

The level of network traffic graphed against a theoretical maximum bandwidth. The maximum bandwidth is calculated by totaling the capacity of all network devices reported by the operating system. This component opens the Network drilldown.

Dataflow components

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Diagnostic Console > Using components > Dataflow components

Dataflow components

Dataflows illustrate the rate at which data is moving through the system and change their speed and color to alert you to performance issues. You can display a dataflow as a flow and graph.

NOTE: Kerberos is the default authentication mechanism in most Active Directory® forests and is more secure than the older NTLM authentication. NTLM authentications are performed in many scenarios. Primarily, they are performed by programs that use LanMan APIs. However, they may also be performed when Kerberos is unavailable or when Kerberos authentication fails.

Table 124. Dataflow components

Dataflow component

Description

Authentications

The number of Kerberos and NTLM Authentications per second handled by the DC. This component should show activity over time. Prolonged periods of high usage or zero activity should be investigated. The PDC Emulator tends to show higher values for Kerberos authentication than other DCs as many older programs only authenticate with a PDC. Client programs can also ask for NTLM authentication as a preference over Kerberos.

Directory Searches

The number of search operations that have been requested by LDAP clients. This component opens the LDAP drilldown.

Directory Reads

The rate at which clients are reading data from the Active Directory Data Store. Global Catalog servers tend to have higher levels of directory activity than other domain controllers. This component opens the LSASS drilldown.

Directory Writes

The rate at which clients are writing data to the Active Directory Data Store. Global Catalogs tend to see higher levels of directory activity than other domain controllers. This component opens the LSASS drilldown.

DRA Inbound Kbytes

The number of kilobytes per second the server receives through replication. This component opens the Replication drilldown.

DRA Outbound Kbytes

The number of kilobytes per second that the server sends through replication. This component opens the Replication drilldown.

LSASS Kilobytes Read

The number of kilobytes per second that have been read from the Active Directory database by the LSASS process. The LSASS process is the part of Active Directory that is responsible for LDAP requests and for authentication requests. This component opens the LSASS drilldown.

LSASS Kilobytes Written

The number of kilobytes that have been written to the Active Directory database by the LSASS process. The LSASS process is the part of Active Directory that is responsible for LDAP requests and for authentication requests. This component opens the LSASS drilldown.

NTFRS/DFSR Kilobytes Read

The number of kilobytes that have been read from the Active Directory database by the NTFRS or DFSR process (depending on the type of replication service used). The process is the part of Active Directory that is responsible for file replication. This component opens the Activity tab on the Replication drilldown.

NTFRS/DFSR Kilobytes Written

The number of kilobytes that have been written to the Active Directory database by the NTFRS or DFSR process (depending on the type of replication service used). The process is the part of Active Directory responsible for file replication. This component opens the Activity tab on the Replication drilldown.

LSASS components

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LSASS components

To see a definition, click the component to open a help box. From the help box, you can open a drilldown to view the associated statistics. See Using drilldowns.

Table 125. LSASS Components

LSASS component

Description

CPU Usage

The total amount of CPU used by the LSASS process. This component opens the LSASS drilldown.

Memory Usage

The total amount of physical memory (RAM) available and the total amount used by the LSASS process. This component opens the All Processes tab on the Performance drilldown.

Replication Queue (DRA)

The number of directory synchronizations queued for this server but not yet processed. This component opens the Replication Queues drilldown.

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