8/8/2023 0 Comments Synology backup shared folder![]() ![]() The backup process for Synology is similar to the backup process for other systems. The resolution was to backup to an unencrypted folder. My directory structure was not deep and my file names were quite short so I suspect this to be a common problem. To my surprise, I saw the following: /var/log/messages:Oct 6 20:41:57 nas01 synolocalbkp: localbkp_copy_file.cpp:111 errno= Failed to open file my case the double encryption results in me hitting the character limit. Finally, I decided to SSH into the Synology and tail /var/log/messages. I looked all over for more detailed information including within Log Center, but I could not determine what was causing the failure. Upon running the backup job it failed less than a minute in with an unhelpful error message. When I first attempted to backup my encrypted folder I did it to another encrypted folder. I strongly recommend running a backup upon first creating it just to ensure it is working properly. If you want, you can run the job now or wait for the schedule to run if configured. Enter backup settings - keeping the defaults and entering a backup schedule is sufficient.Select applications to back up - this should be none.Select the secure folder to back up - my preference is one secure folder per backup destination, but this is not a hard requirement.Select Back up data to local shared folder and enter the shared folder information you created during step 1. ![]() Select either Local Backup Destination or Remote Backup Destination - for security reasons the Public Cloud Backup Destination should not be selected.Main Menu > Backup & Replication > Create > Data backup task.Create a shared folder - I recommend leaving this shared folder unencrypted.Note: The backup folder should at least be on a different set of disks, but ideally a separate Synology/backup device. Given that encrypted data that is backed up remains in encrypted form, you must backup an entire encrypted folder and the character limit is significantly more likely to be hit when backing up an encrypted folder to an encrypted folder, my recommendation would be to backup to an unencrypted folder. Before You StartĮncrypted folders can be backed up to an encrypted folder or they can be backed up to an unencrypted folder. Now that you have an encrypted folder, you may be wondering how to back it up.
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