Scan on ingest
Pro
- Easy to implement
Con
- New viruses won't be recognized
Recurring batch scan
Pro
- Easy to implement
- Runs when the servers are idle
Con
- Scans unused files
- Stresses local fileservers and uses bandwith for external resources
Scan on access
Pro
- Only scans what needs scanning
Con
- Hard to implement
- Non-trivial realtime processing requirements