| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Inbound_qsize
|
The number of
messages received from the Internet destined for this MS Exchange
Server
|
Number
|
This metric checks the inbound side of the MS Exchange server. A
consistently high queue size could indicate that the server is not
able to cope with the incoming traffic.
|
| Outbound_qsize
|
The number of
messages from this MS Exchange Server, that are queued to be delivered
to the Internet. A long outbound queue could result if the
Internet connection from the MS Exchange server is not available, does
not have sufficient bandwidth or the response is very slow.
|
Number
|
Typically, the outbound queue length should be short.
|
| Mts_in_qsize
|
The number of
messages awaiting final delivery in this MS Exchange Server |
Number
|
|
| Mts_out_qsize
|
The number of
messages waiting to be converted to Internet Mail format |
Number
|
|
| In_conns
|
The number of
current SMTP connections to the Internet Mail Service (IMS)
established by other SMTP hosts |
Number
|
|
| Out_conns
|
The number of
current SMTP connections the Internet Mail Service has established to
other SMTP hosts |
Number
|
|
| Conns_failed
|
The current
number of SMTP connection attempts made by the InternetMail Service to
other hosts, that have failed in the last measurement period
|
Number
|
A lot of failures can occur if the Exchange server is not able to
connect to remote server(s) over the Internet
|
| Conns_rejected
|
The current
number of SMTP connections from other hosts that the Internet Mail
Service has rejected during the last measurement period
|
Number
|
There may be many reasons why an Exchange server can reject
connections from other hosts. eg., based on access control
specifications, if the remote host's DNS name cannot be resolved.
|
| In_msgs
|
The current
number of Internet messages delivered into MS Exchange Server during
the last measurement period
|
Number
|
|
| Out_msgs
|
The current
number of outbound messages delivered to their destinations during the
last measurement period |
Number
|
|