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Unified Communications Diagnostics 8.4.1 - 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
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

Transport Panel

The Transport panel groups components that identify the status of the various transport queues on this Exchange 2010 server. This information includes:

Unreachable Queue

Shows the number of messages in the transport unreachable queue on this Exchange 2010 server. The Unreachable Queue contains any messages that cannot be routed to their final destination.

Poison Queue

Shows the number of potentially harmful messages on this Exchange 2010 server. Messages that contain content that might be damaging to the Exchange Server system are by default delivered to this Poison Queue and suspended. If messages in this queue are deemed not harmful, message delivery can be resumed, and the message enters the Submission Queue.

Mailbox Delivery Queue

Represents the number of items in the Transport Mailbox Delivery Queue on this Exchange server. The mailbox delivery queue holds messages that are being delivered to mailbox recipients whose mailbox data is stored on a Mailbox server role located in the same site as this Transport server. The next hop for a message in this queue is the distinguished name of the destination mailbox store.

LDAP Search Time (ms)

Shows LDAP Search Time (in milliseconds) for the transport to send an LDAP search request to Active Directory, and receive a response on this Exchange 2010 server. Exchange 2010 uses Active Directory (AD) as a repository for mailbox and mail routing configuration data. Exchange 2010 servers issue LDAP queries against Active Directory to retrieve message routing data.

Transport-Out Panel

The Transport-Out panel groups components that represent current outbound activity from the Exchange 2010 server. This information includes:

Connections

Shows the current number of outbound SMTP connections to other SMTP hosts. The number of connections represents the sum of all SMTP outbound connections from SMTP Send Connectors on this Exchange 2010 server to all remote SMTP domains.

Connectors

Shows the number of SMTP Send connectors on this Exchange 2010 server that can service connections to other SMTP servers.

Remote Delivery Queue

Shows the number of messages in the transport that are queued for delivery to a remote server using SMTP. The Exchange 2010 Hub and Edge roles can have multiple remote delivery queues. Each queue contains messages with recipients that share the same remote server destination.

On a Hub role server, the destination servers are within the same Exchange Organization as this Exchange server, but in a different AD Site.

For the Edge role, the destination servers are external to the Organization, and handle message delivery for external SMTP domains.

Clientsl Pane

The Clients panel groups components that represent current client connections and associated latency to this Exchange 2010 server. This information includes:

MAPI

Indicates the number of MAPI user connections to this Exchange 2010 server. The Mailbox role provides MAPI access for Microsoft Outlook clients, and enables these types of connections.

OWA

Indicates the number of current unique OWA users logged on to this Exchange 2010 server. The Client Access role provides OWA to allow you to access his or her mailbox from a web browser and have full access to all the information in the mailbox including task lists, calendar information, mail items, public folders, UNC shares (\\servername\share) and SharePoint documents. This value is decremented when a you log off your OWA session or the session times out.

ActiveSync

Shows the number of current secure HTTP connections (HTTPS) that are established from Windows Mobile-based or Exchange ActiveSync-enabled mobile devices and this Exchange server. ActiveSync is a push orientated protocol. Data such as user messages, schedules, contact information and tasks are synchronized over the HTTPS connection.

Outlook Anywhere

Shows the number of unique users currently connected to this Exchange 2010 server via RPC/HTTP. The Outlook Anywhere feature, formerly known as RPC over HTTP, lets clients that use Microsoft Office Outlook to connect to their Exchange servers from outside the corporate network or over the Internet using the RPC over HTTP Windows networking component.

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.

Latency (ms) (for MAPI)

Shows the average latency for MAPI clients connected with Outlook to this Exchange 2010 server providing the Mailbox role.

Latency (ms) (for OWA)

Shows the average latency for OWA clients on the Exchange 2010 server.

Latency (ms) (for ActiveSync)

Shows the average latency for ActiveSync clients on the Exchange 2010 server.

Latency (ms) (for POP3)

Shows the average latency for POP3 clients on the Exchange 2010 server.

Latency (ms) (for IMAP4)

Shows the average latency for IMAP4 clients on the Exchange 2010 server.

Information Store Panel

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

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.

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