Sometimes my CloudStation takes forever to do something, that I think should be quite quick. Sometimes it says "Processing" and some file name, but I don't know if it is updating my client (downloading) or the server (uploading). I would like to look into what it is actually doing. Is there a log file that I can read?

I am interested in all the following:

  • log on Linux client
  • log on Windows client
  • log on Synology NAS

I have not been able to find anything like that.

  • I would check on their technical forums. – rrirower Oct 27 '14 at 12:42
  • Thanks for the hint. I did write there, and haven't gotten a reply. – Mads Skjern Nov 5 '14 at 18:36

On Windows you find the log files in C:\Users\<user>\AppData\Local\CloudStation\log

On your Synology NAS at least in DSM version 5.1-5004 in the main menu -> protocoll center (use the filter).

Under linux I don't know but probably in the /var/log folder.


In DSM in Cloudstation Settings, it is possible to set some options for logging.

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Apparently it uses a database for logging, and when looking around in the file system, the database is a PostgreSQL database, located in Volume1/@database. However, it is not possible for me to figure out this database. In particular, I would just like to know what files are being updated at a point in time.


On Linux clients the logs are in: ~/.CloudStation/log (~ is the user home directory) On the server the logs are in: /volume1/@cloudstation/log/


I believe it should be possible to see a log on Linux, but it is broken on my computer. Please comment if it works/does not for you.

There is a folder /opt/Synology/CloudStation/log. On my computer it only contains of file, launcher.debug which does not tell about what has been synced/uploaded/downloaded.

If right clicking in the Process Bar on the CloudStation icon, then choosing Settings, then "Download history", it is just an empty list.

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And then there is the small window, when clicking the CloudStation icon -> Recently modified files. It shows only file names, not the folder, no size, not whether downloaded or uploaded or synced, and it moves too fast. Pretty useless.

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To expand on Hans' answer above, ~/.CloudStation/log is also the location on MacOS / OSX. A useful command is: tail -f daemon.log | grep ERROR

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