The Shared Insight Cache tool improves scan performance in virtualized environments by not scanning files that a Symantec Endpoint Protection client has determined are clean. When the client scans a file for threats and determines it is clean, the client submits information about the file to Shared Insight Cache. When any another client subsequently attempts to scan the same file, that client can query Shared Insight Cache to determine if the file is clean. If the file is clean, the client does not scan that particular file. If the file is not clean, the client scans the file for viruses and submits those results to Shared Insight Cache.

Shared Insight Cache is a Web service that runs independently of the client. However, you must configure Symantec Endpoint Protection Manager to specify the location of Shared Insight Cache so that your clients can communicate with it. Shared Insight Cache communicates with the clients through HTTP or HTTPS. The client's HTTP connection is maintained until the scan is finished.

For more information about how to configure Symantec Endpoint Protection Manager to communicate with Shared Insight Cache, see Symantec Endpoint Protection and Symantec Network Access Control Implementation Guide.

See System requirements for Shared Insight Cache

See How Shared Insight Cache works

See Configuring your clients to communicate with Shared Insight Cache