High disk space utilization in /var/log partition by nginx_access.log
Article ID: 169391
SSL Visibility Appliance Software
This was initially addressed by SSLV-1955 in SV 126.96.36.199. If you are running a version older than SV 188.8.131.52, update to the latest SV version.
If the problem happens in SV 184.108.40.206 or newer versions, a Technical Case should be opened with Symantec Support for further investigation.