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Active Administrator 8.6.2 - 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

Active Directory Domain Services is not running

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Alerts Appendix > Domain controller alerts > Active Directory Domain Services is not running

Active Directory Domain Services is not running

Indicates Active Directory® Domain Services is currently not running on the domain controller.

Data collector
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Category: Windows Services
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Name: Active Directory Domain Service
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Supported on: Windows Server 2016, Windows Server 2019, and Windows Server 2022
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Required permissions: When monitored locally or remotely, domain administrator privilege is required.
Description

The Directory Analyzer agent periodically checks to ensure Active Directory Domain Services is running.

The most typical cause of this alert is when a server administrator shuts down the Distributed File System (DFS) service and forgets to restart it.

Resolution

Use the Services MCC snap-in or another SCP application to restart Active Directory Domain Services.

Active Directory Web Services service is not running

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Alerts Appendix > Domain controller alerts > Active Directory Web Services service is not running

Active Directory Web Services service is not running

Indicates Active Directory® Web Services service is currently not running on the domain controller.

Data collector
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Category: Windows Services
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Name: Active Directory Web Services
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Supported on: Windows Server 2016, Windows Server 2019, and Windows Server 2022
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Required permissions: When monitored locally or remotely, domain administrator privilege is required.
Description

The Directory Analyzer agent periodically checks to ensure Active Directory Web Services is running.

Resolution

Use the Services MCC snap-in or another SCP application to restart Active Directory Web Services.

Consecutive replication failures

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Supported on: Windows Server 2016, Windows Server 2019, and Windows Server 2022
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Required permissions: When monitored locally and remotely, only domain user privilege is required. When monitored remotely, the target server must have WMI remote access enabled and the user must be a member of the Distributed COM Users group.
Description

The Directory Analyzer agent constantly monitors replication events on a server. When replication fails too many consecutive times, this alert is issued.

Resolution
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Check connectivity between the domain controller and the replication partner in question. Check to see that the link is reasonably clear, especially during replication (check the replication schedule for the connection).
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Make sure that each partner has adequate CPU and memory resources to ensure timely servicing of replication requests.
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Make sure that the link between partners is adequate for the amount of traffic carried during replication. For example, if thousands of objects are being replicated over a slower connection link, the link should be upgraded, or the replication topology reconsidered.

DC cache hits

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Alerts Appendix > Domain controller alerts > DC cache hits

DC cache hits

Indicates the performance of the server may be degraded because of too few cache read hits.

Data collector
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Category: Performance Counters
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Name: Cache copy read hits
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Supported on: Windows Server 2016, Windows Server 2019, and Windows Server 2022
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Required permissions: When monitored locally and remotely, only domain user privilege is required and the user must be a part of the Performance Logs User group.
Description

The Directory Analyzer agent monitors the cache copy read hits data collector on the domain controller. If the value of the data collector drops below the configured threshold for a period exceeding the configured duration, the agent sets this alert condition.

Resolution
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Reduced cache hits are due to excessive disk I/O or insufficient memory, or both. When the cache hit percentage drops, the system spends more time waiting for disk accesses to complete, and overall system throughput suffers enormously.
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If possible, try to reduce the number of applications running on the server that is generating disk I/O. If you are running several batch jobs on the server, running them one after the other, rather than all at the same time, may actually be faster.
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You can also try to reduce the number of users accessing the server by moving heavily-used files to other, less-loaded servers.
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