We are experiencing error messages on our FileMaker Server 13. For 10 days now we’ve been receiving an error 791 message that shows problems during a progressive backup:
Error during progressive backup of "Dokumente_Main", a newer copy will be used or made. Remote container directory could not be moved from "file:/E:/FMBackupProgressiv/IncrementalBackup_2014-11-17_2345/Databases/MainDev/ Dokumente_Main" to "filewin:/E:/FMBackupProgressiv/InProgress_FMS/Databases/MainDev/". (20402)
The event does not follow a regular pattern; in the past 8 days we experienced it between 1 and 6 times per day.
The event seems to not interfere with scheduled backups.
We already made sure that the virus scan software for these directories is disabled (referring to a similar problem: http://forums.filemaker.com/posts/a283051d21)
FileMaker Server: 18.104.22.1680
Server: Windows 2008 R2
Service Pack: Service Pack 1
Memory: 16384 MB
Backup Volume Capacity 1024 GB
Backup Volume Free Space 963 GB
We have a whole bunch of incremental backup folders now, see attached screenshot.