What Happens to ProxySG Logging, When Uploading Them to a Remote

What happens to ProxySG logging, when uploading them to a remote FTP server becomes impossible?

A) When there is no more space for logging, ProxySG switches on dynamic bypass for TCP connections - stops intercepting traffic
B) When there is no more space for logging, ProxySG will process policy, but will ignore any logging-related policies or configuration settings
C) ProxySG erases old logs but continues writing the more recent ones
D) Either logging stops or older log files are erased - depending on the ProxySG configuration