McAfee VIRUSSCAN ENTERPRISE User's Guide download pdf (Page 146)

Performance tab

Specify scan deferral and system utilization options to improve performance.

Option definitions

DefinitionOption

Select the scan deferral option:Scan deferral options

• Defer scan when using battery power— Postpone the scan when the system

is in use and using battery power.

• Defer scans during presentations— Postpone the scan while the system is in

presentation mode.

• User may defer scheduled scans — Allow the user to defer scheduled scans.

• Defer at most — Specify the length of time to defer the scan. Select between

one and 24 hours or select zero to defer the scan forever.

See

How scan deferral works

for more information.

Use the list, from ePolicy Orchestrator, or the slider, from the VirusScan Console, to set

the utilization schedule for the scan. Each task runs independently; unaware of the limits

for other tasks. The increments are:

System utilization

• Low

• Below normal —

The ePolicy Orchestrator default.

• Normal —

The VirusScan Enterprise 8.8 default.

Configure the sensitivity level you wish to use when determining if a detected sample

is malware. For all levels other than Disabled, fingerprints of samples, or

hashes

, are

Artemis (Heuristic

network check for

suspicious files) submitted to McAfee Labs to determine if they are malware. The benefit to you is that

detection may be made available as soon as McAfee Labs publishes the update, and

you would not have to wait for the next DAT release. The higher the sensitivity level

you choose, the higher the number of malware detections. However, by allowing more

detections, you may also get more false positive results. Choose from these sensitivity

levels:

• Disabled — No fingerprints or any data are submitted to McAfee Labs to

determine if they malware.

• Very Low —The detections and risk of false positives are the same as with

regular DATs. A detection is made available to VirusScan Enterprise when McAfee

Labs publishes it instead of waiting for the next DAT update.

• Low — This level is defined as between Very Low and Medium.

• Medium — Use this level when the regular risk of exposure to malware is greater

than the risk of a false positive. McAfee Labs proprietary, heuristic checks results

in detections that are likely to be malware. However, there is some risk that a

detection on a file that isn’t common may result in a false positive. McAfee Labs

checks that detections with this setting will not create a false positive on popular

applications and operating system files.

• High — This level is defined as between Medium and Very High.

• Very High —We recommend using this level only for email and for scanning

volumes and directories that support neither executing programs nor operating

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