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Unified Communications Diagnostics 8.6.3 - User Guide

About Unified Communications Diagnostics Getting Started Using the Management Console Introducing Management Console health tests Health tests available from the Exchange organization node
About the Exchange-based health tests Exchange Server Health Test Prerequisites for Exchange Delivery Health Tests Exchange Internal Server Delivery Health Test Exchange Internal Mailbox Delivery Health Test Exchange External Message Delivery Health Test Exchange Modern Message Delivery Health Test Exchange Storage Health Test Exchange Queue Health Test Internal Outlook Web Access (OWA) Availability Health Test External Outlook Web Access (OWA) Availability Health Test Exchange Replication Health Test Exchange System Health Test Active Directory Account Lockout Health Test Exchange Online Connectivity Health Test Exchange Online Mailbox Logon Health Test Exchange Online Message Delivery Health Test Office 365 Subscription Health Test BlackBerry Server Health Test BlackBerry Message Delivery Health Test Creating test mailboxes for Exchange Adding health sets for Exchange System health tests Configuring Exchange impersonation for the Modern Message Delivery health test Registering UC Diagnostics with the Microsoft Azure portal
Health tests available from the Lync/Skype for Business Environment Resolving Problems with Native Tools Launching the Diagnostic Console from the Management Console Launching UC Analytics from the Management Console Diagnosing Problems using the Diagnostic Console UC Diagnostics: Exchange 2007 Diagnostic Console (Plug In) UC Diagnostics: Exchange 2010 Diagnostic Console (Plug In) UC Diagnostics: Exchange 2013 Diagnostic Console (Plug In) UC Diagnostics: Exchange 2016 Diagnostic Console (Plug In) UC Diagnostics: BlackBerry Diagnostic Console (Plug In) UC Diagnostics: OCS Diagnostic Console (Plug In) UC Diagnostics: Lync 2013 or Skype for Business 2015 Diagnostic Console (Plug In) Reporting Using Web Reports Counters with Non-Zero Alarm Values

Information Store Panel

The Information Store panel displays key operational metrics for the information store on this Exchange 2010 server. This information includes:

 
Table 7. Exchange 2010 information store panel.
Component
Description

Average message delivery time(sec)

Indicates the average time in milliseconds 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 ten messages.

Clients with RPC (Remote Procedure Calls) latency > 2 sec

Indicates the number of client reported Remote Procedure Calls (RPCs) with a latency greater than two seconds. The most commonly used RPC protocol is MAPI, and a high RPC latency can cause MAPI clients such as Microsoft Outlook to hang and stop responding when users send email, receive email, or use calendar functionality such as creating or viewing appointments.

Average mailbox database size

Indicates the average size of the mailbox database.

Total Logons

Indicates the total number of logons to the information store on this Exchange 2010 server. This includes end-user client connections and system processes that are currently logged-on to any storage group in the local information store. There can be multiple logons per connection for most client applications. As a result, it is possible to see the number of client logons exceed the number of mailboxes on a server.

Average client RPC latency (ms)

Shows the average time (in milliseconds) that it takes the server to respond to RPC connected clients. The average is for the past 1024 packets. The most commonly used RPC protocol is MAPI. A high RPC latency can cause MAPI clients such as Microsoft Outlook to hang and stop responding when users send email, receive email, or use any type of calendar functionality such as creating or viewing appointments.

Mailbox Stores

Shows the percentage of disk space consumed by the mailbox stores on this server. This also shows how much of the server disk consumption is attributable to mailbox store consumption versus other data.

Public Folders

Shows the percentage of public store disk space consumption on this server. This allows you to assess how much of the server disk consumption is attributable to public store data versus other data.

Transaction Logs

Shows the total percentage of disk space consumed by the transaction logs on this server. It can be used to quickly assess how much server disk consumption is attributable to transaction log data versus other data on the Exchange server.

Send Queue

Shows the number of messages in the send queue of the information store. This queue holds all outgoing messages from the information store.

RPC Latency (ms)

Shows the database RPC latency of the Information store. The data is averaged over the past 1024 packets.

DAG Name

Shows the Database Accessibility Group (DAG) name. DAG allows you to replicate your database where your mail is stored across any number of servers.

Store Memory

Shows the total physical memory of the store process.

Mailbox Count

Shows the total number of mailboxes that reside in all mailbox stores and public folders.

OS/Subsystem Panel

The Subsystem panel displays components that represent the health of important subsystem features. This information includes:

 
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:

•
They can be configured to show all or some of the metrics associated with components.
•
You can access further information about displays in drilldowns by moving the mouse over the displays, or by clicking or right-clicking on them.
•
You can copy the data shown in drilldowns to other applications or save it to a file.
•
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
•
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.
•
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
•
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
•
Inbound Connections — shows the total number of inbound SMTP connections established by other SMTP hosts to this Exchange server
•
Outbound Connections — shows the current number of outbound SMTP connections to other SMTP hosts
•
Inbound Connectors — shows the number of SMTP Receive connectors on this Exchange 2010 server that are required to accept mail from other SMTP servers
•
Outbound Connectors — shows the number of SMTP Send connectors on this Exchange 2010 server that are required to handle connections to other SMTP servers
•
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
•
Transport Queues — shows the number of messages in the transport queues on this Exchange 2010 server

Clients
•
MAPI — indicates the number of MAPI connections to this Exchange 2010 server. The Mailbox role provides MAPI access to Microsoft Outlook clients.
•
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.
•
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.
•
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.
•
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.
•
Outlook Anywhere — shows the number of unique users currently connected to this Exchange 2010 server via RPC/HTTP.

Information Store
•
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.
•
Total Logons — indicates the number of clients (including system processes) currently logged to any storage group in the information store.
•
Clients with RPC Latency > 2 sec – indicates the number of client reported RPCs (Remote Procedure Calls) with a latency greater than two seconds.
•
Average Client RPC Latency — shows the average time (in milliseconds) that it takes the server to respond to RPC connected clients.

Exchange Mailbox Databases
•
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.
•
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.
•
Database Mount Status — shows the mount status of the mailbox stores on the server. Mailboxes contained in unmounted mailbox stores cannot receive incoming messages.
•
Exchange Mailbox Database List — shows information such as status, Database Name, Logons Currently Hosted, and Database Path for Exchange 2010 servers.

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

Subsystem
•
CPU Usage — indicates the processor CPU usage on this Exchange 2010 server.
•
System Memory — shows the amount of physical memory (RAM) Windows is using.
•
System Disk — shows the amount of used and free space on the Windows system disk on this Exchange 2010 server.
•
Ping Time — shows the ping time (in milliseconds) from the UC Diagnostics client to the Exchange 2010 server.

Processes
•
Process Name — indicates the image name of the application itself.
•
CPU Usage — indicates the percentage of CPU time that the program is currently consuming. This is an instantaneous result.
•
Physical Memory — indicates the current size of the working set of the process.
•
Virtual Memory — indicates current memory allocated to this process that cannot be shared with other processes.
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