This article describes the Performance Monitor counters associated with
the Microsoft Exchange information store.
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For information about the counters that appear for each object associated
with the information store, see the appropriate section below. For
additional information, click the appropriate counter in Performance
Monitor, and then click Explain.
MSExchangeIS Private and MSExchangeIS Public
Average Time for Delivery:
The average time between the submission of a message to the information
store and submission to the message transfer agent (MTA) for the last 10
messages.
Average Time for Local Delivery:
The average time between the submission of a message to the information
store and delivery to all local recipients (recipients on the same server
as the sender) for the last 10 messages.
Categorization Count:
The number of categorizations that exist in the information store.
Categorizations are created when you create a filtered view or perform a
search. When the information store must maintain a large number of
categorizations, performance can be affected.
Folder Count:
The number of folders that exist in the information store.
Folder Opens/Sec:
The rate that requests to open folders are submitted to the information
store.
Logon Active Count:
The number of clients that performed an action related to the information
store in the last 10 minutes.
Logon Count:
The number of clients (including system processes) currently logged on to
the information store.
Logon Peak:
The maximum number of people that were logged on to the information store
at one time since it was started.
Message Opens/Sec:
The rate that requests to open messages are submitted to the information
store.
Message Recipients Delivered:
The total number of recipients that messages have been delivered to since
the information store was started.
Message Recipients Delivered/Min:
The rate that recipients receive messages.
Messages Delivered:
The total number of messages delivered to the information store since it
was started.
Messages Delivered/Min:
The rate that messages are delivered to the information store.
Messages Sent/Min:
The rate that messages are sent to other storage providers via the
message transfer agent (MTA).
Messages Submitted:
MSExchangeIS Private: The total number of messages submitted to the
information store (including messages submitted from gateways) since it
was started.
MSExchangeIS Public: The total number of messages submitted to the
information store since it was started. The only processes that submit
messages to the public information store are public folder rules and
public folder replication messages.
Messages Submitted/Min:
The rate that messages are submitted to the information store.
Receive Queue Size:
The number of messages in the receive queue.
Send Queue Size:
The number of messages in the send queue.
Single Instance Ratio:
The ratio between the total number of message references and the total
number of messages stored in the information store. This ratio indicates
the amount of storage saved by single instance storage.
MSExchangeIS
Connection Count:
The number of different client processes connected to the information
store. This number does not indicate how many individual people are
logged on. To determine how many people are logged on, select the User
Count counter.
RPC Requests:
The number of client requests that are currently being processed by the
information store.
RPC Requests Peak:
The maximum number of client requests that were processed simultaneously
by the information store since it was started.
Read Bytes RPC Clients/Sec:
The rate that bytes are read from RPC clients.
RPC Operations/Sec:
The rate of RPC operations.
RPC Packets/Sec:
The rate of RPC packets.
User Count:
The number of people connected to the information store.
Write Bytes RPC Clients/Sec
The rate that bytes are written to RPC clients.
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