When uploading access logs, which type of upload uses the least disk space on the ProxySG?

Continuous upload is the correct answer because it allows for real-time transmission of access logs collected by the ProxySG without storing large volumes of data on the device itself first. By continuously streaming log data to an external storage solution, the ProxySG minimizes the need for extensive local storage, as the logs are processed and transmitted in smaller, more manageable increments.

This method is efficient in terms of disk space because it avoids the bulk accumulation of log files that might occur with other upload methods, particularly manual or static uploads, which can involve collecting and storing all data locally before transferring it. Periodical uploads can also require significant disk space since they batch logs over a certain period before sending, leading to higher disk usage during that time.

Hence, continuous upload is designed to optimize storage requirements while ensuring timely accessibility of log data for analysis or archiving.