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The Clients panel groups components that represent current client connections and associated latency to this Exchange 2007 server. This information includes:
MAPI
Indicates the number of MAPI user connections to this Exchange 2007 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 2007 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 2007 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 2007 server via RPC/HTTP. In Microsoft Exchange Server 2007, 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 2007 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 2007 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 2007 server providing the Mailbox role.
Latency (ms) (for OWA)
Shows the average latency for OWA clients on the Exchange 2007 server.
Latency (ms) (for ActiveSync)
Shows the average latency for ActiveSync clients on the Exchange 2007 server.
Latency (ms) (for POP3)
Shows the average latency for POP3 clients on the Exchange 2007 server.
Latency (ms) (for IMAP4)
Shows the average latency for IMAP4 clients on the Exchange 2007 server.
The Information Store panel displays key operational metrics for the information store on this Exchange server. This information includes:
Average message delivery time(sec)
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 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 2007 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.
Receive Queue
Shows the number of messages in the receive queue of the information store. These messages are waiting to be processed by the information store.
Storage Groups
Shows the number of storage groups installed on the Exchange 2007 server.
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.
The OS/ Subsystem panel displays components that represent the health of important subsystem features. This information includes:
Exchange Services
Indicates the sum of CPU utilization for all of the Exchange 2007 services running on this server.
System Disk
Shows the percentage of disk usage for the Windows system disk on this Exchange 2007 server.
CPU Usage
Shows the amount of CPU used on this Exchange 2007 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 2007 server.
Top Memory Consumer
Identifies the process that is consuming the most memory on this Exchange 2007 server.
The Exchange 2007 Diagnostic Console contains the following message flows that show the amount of information being sent to various components in your Exchange 2007 environment.
Msgs Submitted/sec
Indicates the rate of messages being submitted per second to this Exchange 2007 transport queues.
Msgs Received/sec
Indicates the rate of messages received by SMTP Receive connector on this Exchange 2007 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 2007 server.
Bytes Received/sec
Indicates the number of bytes received per second from all RPC clients on this Exchange 2007 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 2007 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 2007 server.
Indicates the number of outbound messages sent per second by the SMTP send connectors on this transport server..
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