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Being Windows Server-based, WSS has an edge over other NAS platforms; virus scanning software can run directly on WSS and it will allow using whatever virus scanning software a company has standardized on.
Conversely, non-Windows platforms need to pass off virus scanning requests to dedicated virus scanning servers from CA, McAfee Inc., Symantec Corp. or Trend Micro Inc. For instance, Trend Micro offers ServerProtect for Network Appliance Filers and Server Protect for EMC Celerra; both are purpose-built products, optimized for the needs of the two respective NAS platforms. The NAS and one or more antivirus scanning servers typically communicate via trusted CIFS connections. The NAS system will initiate scans on files that are created, changed and opened for read-access, and that haven't been marked as scanned since the last virus definition update. The scanning server also informs the NAS platform when new virus definitions are applied.
This was first published in September 2007