I am using the native Windows 7 Backup app to back up my data to a Seagate BlackArmor NAS 220 device configured as RAID 1. It had been working flawlessly for a few months, but suddenly I have started receiving the message:
The backup was not successful. The error is: A backup cannot be done to a remote shared folder which is not hosted on a volume formatted with NTFS. (0x807800B0).
I suspect that the root cause of the problem is not that the remote folder for the backup is not properly formatted, since it used to work before, and I have not made any changes to it. Also, I am using the NAS device for other things an it responds perfectly. Therefore I think that the error message is a red herring, and the real cause of the problem must be something else.
I looked in the Windows Event Log and "fault bucket" entry right after the backup error entry, with a lot of information that I don't know how to interpret. Any idea of what the problem may be? Thanks.