FAQs | Cloud File Service (CFS)

Q1. When I upload a new version of a file, the file that was in the cold storage is moved to the hot storage?

File version management function, after uploading a new version, the original file will become the old version and placed in the original storage area without being moved. The latest version of the file is displayed in the folder file list. Older versions can be viewed by clicking on the version history in the directory to the right of the file.

Q2. Why can't I check the CFS usage information from the resource usage record in the Member Center?

CFS usage is only available to the administrator or creator. If your account is a user, you will not be able to view resource usage. You can ask the project's administrator to help you with queries or increase your permissions.

Q3. Can there be two files with the same file name in a folder?

This happens because the upload of the previous file is not yet complete, i.e. a file with the same file name has already been uploaded. Therefore, files that have not been uploaded have no version information, and files that have been re-uploaded are considered new. We recommend that when uploading a new version of a file from the web, make sure the file is already in the list before uploading. If you use the API, do not continuously upload files with the same file name to the same folder.

Q4. What's the maximum size limit for uploading a single file by CFS？

For better performance consideration, the maximum size of a single file uploaded is 4GB. If the file exceeds 4GB, please divide the file before uploading.

Q5. Does CFS support upload multiple files at once?

When you need to upload multiple files, we recommend you to use the SFTP access interface. The recommended number of files each time is within 2000, and each file size does not exceed 5MB. In the above circumstances, the estimated complete upload time is 1 hour. However, this result data is for reference only, because the upload speed is related to the personal network conditions and the performance of the local host.