Unified Communications Diagnostics 8.5

Table 8. Exchange 2010 subsystem panel.
Component	Description
Exchange Services	Indicates the sum of CPU utilization for all of the Exchange 2010 services running on this server.
System Disk	Shows the percentage of disk usage for the Windows system disk on this Exchange 2010 server.
CPU Usage	Shows the amount of CPU used on this Exchange 2010 server.
System Memory	Shows the amount of physical memory (RAM) Windows is using. Physical memory usage can normally remain close to the total amount of physical memory installed on the system unless the amount of physical memory exceeds the amount of virtual memory that Windows is using. Windows normally keeps some physical memory available for immediate use.
Ping Time	Indicates the amount of time it takes the computer running the Diagnostic Console to ping the target server.
Top CPU Consumer	Identifies the process that is consuming the most CPU on this Exchange 2010 server.
Top Memory Consumer	Identifies the process that is consuming the most memory on this Exchange 2010 server.

Message Flows

The Exchange 2010 Diagnostic Console contains the following message flows that show the amount of information being sent to various components in your Exchange 2010 environment.

Table 9. Exchange 2010 message flows.
Message Flow	Description
Msgs Submitted/sec	Indicates the rate of messages being submitted per second to this Exchange 2010 transport queues.
Msgs Received/sec	Indicates the rate of messages received by SMTP Receive connector on this Exchange 2010 server.
MAPI Msgs Submitted/sec	Indicates the rate that messages are submitted to the Information Store on the Exchange server by MAPI clients (connected with Outlook).
OWA Msgs Received/sec	Indicates the rate that bytes are received by Exchange server from OWA clients.
ActiveSync Bytes Received/sec	Indicates the rate that bytes are received by Exchange this server from ActiveSync mobile devices.
POP3/IMAP4 Bytes Received/sec	Indicates the number of bytes per second received from POP3 and IMAP4 clients.
Msgs Sent/sec	Indicates the number of messages sent per second to the transport.
Msgs Delivered/sec	Indicates the rate of messages delivered to all recipients with mailboxes on this Exchange 2010 server.
Bytes Received/sec	Indicates the number of bytes received per second from all RPC clients on this Exchange 2010 server information store. RPC clients includes all internal Exchange system components.
Bytes Sent/sec	Indicates the number of bytes sent per second to all RPC clients from this Exchange 2010 server information store. RPC clients includes all internal Exchange system component.
Bytes Read/sec	Indicates the rate at which data is being read from the disk, network, and device subsystems of the Windows server running Exchange. The data is primarily being read from the disk subsystem.
Bytes Written/sec	Indicates the rate at which data is being written to the disk, network, and device subsystems of the Windows server running Exchange. The data is primarily being written to the disk subsystem.
Msgs Queued/sec	Indicates the number of messages queued for delivery per second on this Exchange 2010 server.
Msgs Sent/sec	Indicates the number of outbound messages sent per second by the SMTP send connectors on this transport server.

Drilldowns

Each drilldown page contains displays that provide you with specific information about the components of your system. Drilldowns mainly use two different types of displays — tables and charts. Drilldowns have the following features:

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They can be configured to show all or some of the metrics associated with components.

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You can access further information about displays in drilldowns by moving the mouse over the displays, or by clicking or right-clicking on them.

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You can copy the data shown in drilldowns to other applications or save it to a file.

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You can view a brief description of a drilldown by hovering your mouse over a component, such as a button, dataflow, status ball, or Toolbar button.

To view a drilldown

Right-click a component in a panel and select Show Details.

Table 10. Exchange 2010 drilldowns.

Drilldown

Associated charts/tabs

Active Directory Servers

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Active Directory Servers — shows information about the Active Directory servers in use by this Exchange 2010 server. Exchange 2010 stores all configuration and recipient information in the Active Directory directory service database. All Exchange 2010 roles use Active Directory except the Edge role, which does not have access to Active Directory. The Edge role uses Active Directory Application Mode (ADAM) to store schema and configuration information.

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Active Directory Servers Details — shows information about the currently selected Active Directory. Exchange 2010 stores all configuration and recipient information in the Active Directory directory service database. All Exchange 2010 roles use Active Directory except the Edge role which does not have access to Active Directory. The Edge role uses ADAM to store schema and configuration information.

DNS Servers

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DNS Servers — shows information about the DNS servers in use by this Exchange 2010 server. The Exchange 2010 server uses the DNS server that is configured in the IP properties of the network adapter to locate domain controllers and global catalog servers, other Exchange servers, and remote domains. DNS lookup settings can be specified on the Hub Transport server, which override the settings on the network adapter to route messages.

Transport In/Transport/Transport Out

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Inbound Connections — shows the total number of inbound SMTP connections established by other SMTP hosts to this Exchange server

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Outbound Connections — shows the current number of outbound SMTP connections to other SMTP hosts

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Inbound Connectors — shows the number of SMTP Receive connectors on this Exchange 2010 server that are required to accept mail from other SMTP servers

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Outbound Connectors — shows the number of SMTP Send connectors on this Exchange 2010 server that are required to handle connections to other SMTP servers

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LDAP Search Time — shows LDAP Search Time (in ms) that is taken to send an LDAP search request and receive a response on this Exchange 2010 server

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Transport Queues — shows the number of messages in the transport queues on this Exchange 2010 server

Clients

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MAPI — indicates the number of MAPI connections to this Exchange 2010 server. The Mailbox role provides MAPI access to Microsoft Outlook clients.

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OWA — indicates the number of OWA connections to this Exchange 2010 server. The Client Access role provides OWA to allow a you to access to your mailbox information through a web browser.

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ActiveSync — shows the number of ActiveSync connections to this Exchange 2010 server. The Client Access role uses ActiveSync to allow mailbox access from mobile devices.

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POP3 — shows the number of POP3 connections to this Exchange 2010 server. The Client Access role provides POP3 access to mailbox data for clients that rely on this protocol.

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IMAP4 — shows the number of IMAP4 connections to this Exchange 2010 server. The Client Access role provides IMAP4 access to mailbox data for clients that rely on this protocol.

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Outlook Anywhere — shows the number of unique users currently connected to this Exchange 2010 server via RPC/HTTP.

Information Store

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Average Message Delivery Time — indicates the average time in seconds between the submission of a message to the mailbox store and the delivery to all local recipients (recipients on the same server) for the last 10 messages.

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Total Logons — indicates the number of clients (including system processes) currently logged to any storage group in the information store.

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Clients with RPC Latency > 2 sec – indicates the number of client reported RPCs (Remote Procedure Calls) with a latency greater than two seconds.

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Average Client RPC Latency — shows the average time (in milliseconds) that it takes the server to respond to RPC connected clients.

Exchange Mailbox Databases

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Transaction Log Free Space — shows the amount of free space on the transaction log disk with the least amount of free space on the server. There should be enough free disk space to accommodate foreseeable future growth in the transaction logs. If circular logging is turned off on the transaction logs, there should be enough free space to accommodate at least 25% of the current transaction log size.

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Database Free Space — shows the amount of free space on the store disk with the least amount of free space on the server. There should be enough free disk space to accommodate foreseeable future growth in the mailbox store(s) and to defragment any store on this server.

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Database Mount Status — shows the mount status of the mailbox stores on the server. Mailboxes contained in unmounted mailbox stores cannot receive incoming messages.

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Exchange Mailbox Database List — shows information such as status, Database Name, Logons Currently Hosted, and Database Path for Exchange 2010 servers.

Exchange Services

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Exchange Services List — lists the Exchange services that are running on this Exchange 2010 server. Both required and optional services for the roles installed on this Exchange server are listed, along with their service status.

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Service Details — shows the CPU and memory usage of the currently selected Exchange 2010 service.

Subsystem

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CPU Usage — indicates the processor CPU usage on this Exchange 2010 server.

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System Memory — shows the amount of physical memory (RAM) Windows is using.

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System Disk — shows the amount of used and free space on the Windows system disk on this Exchange 2010 server.

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Ping Time — shows the ping time (in milliseconds) from the UC Diagnostics client to the Exchange 2010 server.

Processes

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Process Name — indicates the image name of the application itself.

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CPU Usage — indicates the percentage of CPU time that the program is currently consuming. This is an instantaneous result.

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Physical Memory — indicates the current size of the working set of the process.

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Virtual Memory — indicates current memory allocated to this process that cannot be shared with other processes.

Metrics

A metric is an individual piece of information that UC Diagnostics has collected about the performance of a system, such as perfmon counters. The information may be a numeric value (a number or percentage), a string of text, or some other piece of data.

To view the perfmon counters

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Right-click a component and select Metrics.

The perfmon counter is visible in the Metric help section in the General tab.

Every time that the UC Diagnostics window is refreshed, UC Diagnostics retrieves the latest value of the metric, which can then be displayed in a drilldown or on the home page.

The Metric editor allows you to view and edit the properties of UC Diagnostics metrics, including their thresholds and severities. You can open the Metric editor for a component or a drilldown by right-clicking on the component and choosing Metrics from the invoked shortcut menu.

When you open the Metric editor, the General tab is open by default. Several metrics contain data source descriptions for the metric. The data source descriptions use the following list of functions.

Table 11. Exchange 2010 metrics.
Function	Description
max(x)	the maximum of a set of values in list x
max(x,y)	the maximum of x and y
min(x)	the minimum of a set of values in list x
count(x)	the number of values in list x
sum(x)	the sum of a set of values in list x
if(x,y,z)	if x is true, then return y, otherwise, return z
snull(x)	if x could not be collected, then return true
avg(x)	the average of values in list x

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Unified Communications Diagnostics 8.5 - User Guide

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