Hi,
I got the backup failed with error 665.
We have a scheduled weekly full backup job running through maintenance plan. We are using Sql 2008r2. Our backup server is windows 2008R2. There is plenty of space in the backup server but still my database full backup failed with the following error.
Executing the query "BACKUP DATABASE [Test] TO DISK = N'\\C:\fullbackup." failed with the following error: "Write on "\\C:\fullbackup\test_backup_2015_04_12_200003.bak" failed: 665(The requested operation could not be completed due to a file system limitation) BACKUP DATABASE is terminating abnormally.