Cisco Cisco Email Security Appliance X1050 ユーザーガイド

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Cisco IronPort AsyncOS 7.1 for Email Daily Management Guide
OL-22160-02
Chapter 2      Using Email Security Monitor
Email Security Monitor Pages
Note
If a message is released from the quarantine into the work queue, the “average 
time in work queue” metric ignores this time. This prevents double-counting and 
distorted statistics due to extended time spent in a quarantine.
The report also shows the volume of messages in the work queue over a specified 
time period, and it shows the maximum messages in the work queue over the same 
time period. 
Occasional spikes in the Workqueue graphs are normal and expected. If the spikes 
occur with increasing frequency and are maintained over a long period of time, 
this may indicate a capacity issue. When reviewing the work queue page, you may 
want to measure the frequency of work queue backups, and take note of work 
queue backups that exceed 10,000 messages.