The maximum file size that can be transferred using the NI Linux Real-Time WebDAV server is 2 GB and it is not possible to increase it.If you need to transfer the files and are not able to split or make the file smaller, you should look at using other transfer protocols such as SFTP/FTP.
National Instruments recommends not logging data into large files. Having smaller data files increases reliability, enhances transfer times, and improves organization. Some other techniques you can try include:
Collaborate with other users in our discussion forums
A valid service agreement may be required, and support options vary by country.