We are wanting to understand the virus scanning settings, for all file accesses and when files are opened for reading. When we have both of them enabled file access from the filers is slow (opening a mapped drive letter takes long and we see high CPU utilization, Protocol Latency ), on turning off “When files are opened for reading” the access is quick. Please can you provide us some guidance to these settings, what’s recommended.
We have both the settings enabled on all our shares. If we were to disable “When files are opened for reading” how does it impact our security posture? We are using McAfee Virus Scan for Storage and have four scanners serving one filer.
Using 8.x OnTap 7-Mode in case its needed. VSCAN options are already configured on the filer per the best practices guidance.