Product guide

storage to local storage. When you need to access a file on a volume managed by remote
storage, open the file as usual. If the data for the file is no longer cached on your local volume,
remote storage recalls the data from a tape library.
How scan deferral works
To improve performance, you can defer on-demand scan tasks when battery power is low or
during full-screen presentations. You can also allow the user to defer scheduled scans in one-hour
increments. The increments can last one hour, 24 hours, or the on-demand scan can be deferred
forever.
Each user deferral can last one hour. For example, if the Defer at most option is set at 2, the
user can defer the scan task two times or two hours. When the maximum specified number of
hours elapses, the scan continues. If the administrator allows unlimited deferrals by setting the
option to zero, the user can continue deferring the scan forever.
How system utilization works
The on-demand scanner uses the Windows Set Priority setting for the scan process and threads
priority. This lets the operating system set the amount of CPU time that the on-demand scanner
receives at any point in the scan process. The system utilization setting in the On-Demand Scan
Properties maps to the Windows Set Priority control.
Setting the system utilization for the scan to low provides improved performance for other
running applications. The low setting is useful for systems with end user activity in progress.
Conversely, by setting the system utilization to normal the scan completes faster. The normal
setting is useful for systems that have large volumes and very little end user activity.
The following table shows the VirusScan Enterprise and ePolicy Orchestrator default process
settings.
Windows Set Priority settingVirusScan Enterprise process setting
Low
Low
Below normal
Below normal — The ePolicy Orchestrator default
Normal
Normal — The VirusScan Enterprise 8.8 default
Configuring on-demand scan tasks
Configuring on-demand tasks depends on the user interface console you are using. These tasks
describe that process for each user interface console.
Tasks
ePolicy Orchestrator 4.5 or 4.6
ePolicy Orchestrator 4.0
VirusScan Console
Configuring on-demand scan tasks tabs
ePolicy Orchestrator 4.5 or 4.6
Configure the on-demand scan tasks with this user interface console.
Part II - Detection: Finding Threats
Scanning items on-demand
McAfee VirusScan Enterprise 8.8 Product Guide64