Zimbra Collaboration Suite 7.0
Zimbra Collaboration Suite 7.0
Administrator's Guide
Open Source Edition


Monitoring Zimbra Servers > Server Performance Statistics

Server Performance Statistics
If the Zimbra-logger package is installed on a Zimbra mailbox server. Server Statistics shows bar graphs of the message count, message volume, anti-spam, and anti-virus activity. The information is displayed for the last 48 hours, and 30, 60, and 365 days.
When Server Statistics is selected in the Navigation pane, consolidated statistics for all mailbox servers is displayed. Selecting a specific server in the expanded view shows statistics for that server only. Server specific information also includes disk usage, session information, and mailbox quota details.
The following tabs display system-wide information:
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Message Count counts message transactions. A transaction is defined as either the SMTP receipt of a message per person (by Postfix) or a LMTP delivery of it (by mailboxd) per person. For example, if a message is sent to three people, six transactions are displayed. Three for SMTP to Postfix and three for LMTP to mailboxd. The message count is increased by six.
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Message Volume displays the aggregate size in bytes of transactions sent and received per hour and per day. Graphs show the total inbound data by volume in bytes.
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Anti-Spam/Anti-Virus Activity displays the number of messages that were checked for spam or viruses and the number of messages that were tagged as spam or deemed to contain a virus. The AS/AV count is increased by one per message scanned. One message sent to three people counts as only one message processed by AS/AV.
The Message Count and the Anti-spam/Anti-virus Activity graphs display a different message count because:
Outbound messages may not go through the Amavisd filter, as the system architecture might not require outbound messages to be checked.
Message are received and checked by Amavisd for spam and viruses before being delivered to all recipients in the message. The message count shows the number of recipients who received messages.
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Server-specific statistics also include the following tabs:
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Disk for a selected server displays the disk used and the disk space available. The information is displayed for the last hour, day, month, and year.
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Session displays information about the active Web client, administrator and IMAP sessions. You can see how many active sessions are opened, who is logged on, when the session was created and the last time the session was accessed.
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Mailbox Quota displays information about each account sorted by mailbox size in descending order. See Monitoring Mailbox Quotas.