9 Microsoft Exchange Server Metrics

Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft. It is commonly used by organizations and businesses that need to manage and store emails for multiple people. Enterprise Manager Grid Control allows you to discover and monitor Microsoft Exchange Servers that are in your environment

This chapter provides descriptions for all Microsoft Exchange Server metric categories, and tables list and describe associated metrics for each category.

DSAccess Domain Controllers Reachability Metrics

This category provides reachability metrics for DSAccess Domain Controllers.

Default Collection Interval — Every 5 minutes

Table 9-1 DSAccess Domain Controllers Reachability Metrics

Metric	Description
IsFast	When True, shows the domain controller response time has been less than two seconds.
IsInSync	Shows if the domain controller is synchronized with the Global Catalog server and with the Configuration domain controller.
IsUp	Shows whether the domain controller was available the last time Exchange attempted to access it.

Exchange - Cluster Resource State Metrics

This category provides metrics about Microsoft Exchange Cluster resource.

Default Collection Interval — Every 5 minutes

Table 9-2 Exchange - Cluster Resource State Metrics

Metric	Description
State	Shows the current state of the cluster resource.

Exchange - Connectors Status Metrics

This category provides connectors status metrics.

Default Collection Interval — Every 5 minutes

Table 9-3 Exchange - Connectors Status Metrics

Metric	Description
GroupDN	Shows the distinguished Name (DN) in Active Directory of the routing group.
Is Up	Shows that the Exchange Connector is operating normally.
Name	Shows the name of the Exchange Connector.

Exchange - Directory Service Flags Metrics

This category provides metrics related to directory service flags.

Default Collection Interval — Every 10 minutes

Table 9-4 Exchange - Directory Service Flags Metrics

Metric	Description
Critical-Data Flag	Shows 1 if the Domain Controller contains the Exchange server account, 0 otherwise.
GC-Capable Flag	Shows 1 if the Domain Controller is also a Global Catalog Server, 0 otherwise.
Is-Synchronized Flag	Shows 1 if the Domain Controller is synchronized.
Netlogon Flag	Shows 1 when DsGetDcName to the DC succeeds, indicating that NetLogon service is running, 0 otherwise.
OS Version Flag	Shows 1 when the DC satisfies DSAccess OS/Service Pack requirements, 0 otherwise.
SACL-Right Flag	Shows 1 if the Exchange server has a SeSecurityPrivilege on the Domain Controller, 0 otherwise.

Exchange - Directory Service Performance Metrics

This category provides directory service performance metrics.

Default Collection Interval — Every 10 minutes

Table 9-5 Exchange - Directory Service Performance Metrics

Metric	Description
LDAP Read Time(in ms)	Shows the time (in ms) taken to send an LDAP read request to the specified Domain Controller and receive a response.
LDAP Read calls Per Second	Shows the number of Depth 0 LDAP search calls made by this process per second.
LDAP Search Calls Per Second	Shows the number of Depth 1 or 2 LDAP Search calls made by this process per second.
LDAP Search Time(in ms)	Shows the time (in ms) taken to send an LDAP search request and receive a response.

Exchange - Links Performance Metrics

This category provides metrics links performance metrics.

Default Collection Interval — Every 10 minutes

Table 9-6 Exchange - Links Performance Metrics

Metric	Description
Global Stop	Shows whether the virtual server for the link is in disabled mode. If True, the virtual server is disabled.
Increasing-Time(milliseconds)	Shows the time (in milliseconds) that the number of messages waiting to be transferred by the link has been increasing.
Number Of Messages	Shows the number of messages that are waiting for transmission across the link.
Oldest Message	Shows the date and time when the oldest message, which is still waiting to be transmitted, was received into the link.
Size Of Queue(Bytes)	Shows the total size of the messages in the link (in bytes).
Size Of Queue(MB)	Shows the total size of the messages in the link (in megabytes).
State Active	Shows if the link is active. If True, then it is active.
State Frozen	Shows whether the link is currently frozen.
State Ready	Shows if the link is ready to accept new messages. If True, then is it ready.
State Remote	Shows if the destination for messages in this link is on a remote server.
State Retry	Shows if the link is retrying a transmission that was unsuccessful. If True, then it is retrying.
State Scheduled	When True, shows that the link is scheduled for periodic activation, as compared with asynchronous, on-demand activation.

Exchange - Server State Metrics

This category provides information about the host running Microsoft Exchange Server.

Default Collection Interval — Every 5 minutes

Table 9-7 Exchange - Server State Metrics

Metric	Description
DN	Shows the Microsoft Active Directory distinguished name (DN) of the Exchange server object.
GUID	Shows the GUID of the Exchange Server object in Active Directory.
Group DN	Shows the DN of the Exchange Server routing group in Active Directory.
Group GUID	Shows the globally unique identifier (GUID) of the Exchange Server routing group in Active Directory.
Server Maintenance	Shows if the notifications set up in the Exchange Server System Manager Monitoring and Status page have been disabled.
Server State	Shows the current status of Microsoft Exchange Server.
Server State String	Shows the current state of the computer running Exchange Server.
Services State	Shows the current state of the monitoring services running on the Exchange Server host.
Services State String	Shows the current state of the monitoring services running on the Exchange Server host.

Exchange - Top Sized Mailboxes Metrics

This category provides metrics about the top sized mailboxes.

Default Collection Interval — Every 60 minutes

Table 9-8 Exchange - Top Sized Metrics

Metric	Description
Mailbox Display Name	Shows the name of the Mailbox.
Size (MB)	Shows the cumulative size of all of the messages in the Mailbox (in megabytes).
Size (bytes)	Shows the cumulative size of all of the messages in the Mailbox (in bytes).

Exchange - Top Sized Public Folders Metrics

This category provides metrics about the top sized public folders in the exchange server.

Default Collection Interval — Every 60 minutes

Table 9-9 Exchange - Top Sized Public Folders Metrics

Metric	Description
Name	Shows the name of the Public Folder.
Total Message Size	Shows the total size of the folder (in bytes).
Total Message Size (MB)	Shows the total size of the folder (in megabytes).

Exchange Core Processes Performance Metrics

This category provides exchange core processes performance metrics.

Default Collection Interval — Every 10 minutes

Table 9-10 Exchange Core Processes Performance Metrics

Metric	Description
CPU utilization(%)	Shows the percentage of elapsed time that all of process threads used the processor to execute instructions.
Virtual Bytes (MB)	Shows the current size (in megabytes) of the virtual address space the process is using.
Working Set (MB)	Shows the current size (in megabytes) of the Working Set of this process.

Exchange File System Driver Status Metrics

This category provides metrics related to exchange file system driver status.

Default Collection Interval — Every 10 minutes

Table 9-11 Exchange File System Driver Status Metrics

Metric	Description
Status	Shows the current status of the object.

Exchange Host Metrics

This category provides metrics about the host on which Microsoft Exchange Server is running.

Default Collection Interval — Every 10 minutes

Table 9-12 Exchange Host Metrics

Metric	Description
CPU Utilization (%)	Shows the total CPU utilization (in percentage) by all the processes running on the host.
Memory Utilization	Shows the total memory utilization (in megabytes) of all processes.
Memory Utilization (%)	Shows the percentage of main memory used by the processes running on the host.
Total Physical Memory	Shows the total main memory installed on the host.

Exchange Services Metrics

This category provides metrics related to information on the performance of Exchange Services.

Default Collection Interval — Every 5 minutes

Table 9-13 Exchange Services Metrics

Metric	Description
Caption	Shows a short textual description (one-line string) of the Service.
Description	Shows the description of the Service.
PathName	Shows the fully qualified path to the service binary file that implements the service.
ProcessId	Shows the process identifier of the service.
State	Shows the current state of the base service.
Status	Shows the current status of the object.

Information Store General Metrics

This category provides information store general metrics.

Default Collection Interval — Every 10 minutes

Table 9-14 information Store General Metrics

Metric	Description
Active Connection Count	Shows the number of connections that have shown some activity in the last 10 minutes.
Active User Count	Shows the number of user connections that have shown some activity in the last 10 minutes.
Connection Count	Shows the number of client processes connected to the information store.
RPC Averaged Latency	Shows the RPC latency (in milliseconds) averaged for the past 1024 packets.
RPC Operations Per second	Shows the rate at which the RPC operations occur.
User Count	Shows the number of users connected to the information store.
Virus Scan Files Quarantined Per Second	Shows the rate at which separate files are put into quarantine by virus scanner.
Virus Scan Files Scanned Per Second	Shows the rate at which separate files are processed by virus scanner.
Virus Scan Queue Length	Shows the current number of outstanding requests that are queued for virus scanning.

Information Store Mailbox Stores Metrics

This category provides metrics related to information store mailbox stores.

Default Collection Interval — Every 10 minutes

Table 9-15 Information Store Mailbox Stores Metrics

Metric	Description
Average Delivery Time	Shows the average time (in milliseconds) between the submission to the mailbox store and the delivery to all local recipients for the last 10 messages.
Local Delivery Rate	Shows the rate at which messages are delivered locally.
Messages Delivered Per Second	Shows the rate at which messages are delivered to all recipients.
Messages Submitted Per Second	Shows the rate at which clients submit messages.
Receive Queue Size	Shows the number of messages in the mailbox store's receive queue.
Send Queue Size	Shows the number of messages in the mailbox store's send queue.

Information Store Public Stores Metrics

This category provides metrics related to information store public stores metrics.

Default Collection Interval — Every 10 minutes

Table 9-16 Information Store Public Stores Metrics

Metric	Description
Average Delivery Time(ms)	Shows the average time (in milliseconds) between the submission to the public store and the delivery to all local recipients for the last 10 messages.
Messages Delivered Per Minute	Shows the rate at which messages are delivered to all recipients.
Messages Delivered Per Second	Shows the rate at which messages are delivered to all recipients.
Messages Submitted Per Minute	Shows the rate at which messages are submitted by clients.
Messages Submitted Per Second	Shows the rate at which messages are submitted by clients.
Receive Queue Size	Shows the number of messages in the public store's receive queue.
Send Queue Size	Shows the number of messages in the public store's send queue.

Logical Disk Performance Metrics

This category provides logical disk performance metrics.

Default Collection Interval — Every 10 minutes

Table 9-17 Logical Disk Performance Metrics

Metric	Description
Disk Reads Per Second	Shows the number of disk reads per second.
Disk Size(MB)	Shows the size of the logical disk.
Disk Writes Per Second	Shows the number of disk writes per second.
Free Space (%)	Shows the percentage of free Space on the disk.
Free Space (MB)	Shows the amount of free space on the logical disk in MB.

MTA Connections Metrics

This category provides metrics related to MTA Connections.

Default Collection Interval — Every 10 minutes

Table 9-18 MTA Connections Metrics

Metric	Description
Connector Index	Shows the unique index associated with a connector entity.
Current Inbound Connections	Shows the current number of inbound (remote initiated) associations with the entity.
Current Outbound Connections	Shows the current number of outbound (locally initiated) associations with the entity.
Messages Received Per Second	Shows the rate at which the messages are received from the connected entity.
Messages Sent Per Second	Shows the rate at which the messages are sent to the connected entity.
Size of OutBound Messages Queue	Shows the number of outstanding messages queued for transfer to the entity.

Response Metrics

This category provides status metrics for the Microsoft Exchange Server.

Default Collection Interval — Every 5 minutes

Table 9-19 Response Metrics

Metric	Description
Status	Shows the current status of Microsoft Exchange Server. The status can be Agent Unreachable, Under Blackout, Metric Collection Error, Up, Down, Partially Up, Agent Down, or Status Pending.

SMTP Server Metrics

This category provides SMTP server metrics.

Default Collection Interval — Every 10 minutes

Table 9-20 SMTP Server Metrics

Metric	Description
Inbound Connections Current	Shows the total number of connections currently inbound.
Local Queue Length	Shows the number of messages in the local queue.
Messages Received Per Second	Shows the rate at which inbound messages are being received.
Messages Sent Per Second	Shows the rate at which outbound messages are being sent.
Outbound Connections Current	Shows the number of connections currently outbound.
Remote Queue Length	Shows the number of messages in the remote queue.

Windows Event log - MS Exchange Error Events Metrics

This category provides metrics related to MS Exchange error events.

Default Collection Interval — Every 10 minutes

Table 9-21 Windows Event log - MS Exchange Error Events Metrics

Metric	Description
Description	Shows the event message as it appears in the NT Eventlog.
Record Number	Shows the event within the NT Eventlog logfile.
Windows Event Severity	Shows the severity of the windows event.