I have discovered what the issue is, the error I am getting from SQL is stating that the network path is no longer available. This in conjunction that I have just discovered that the interface is set to 100Mbps on our QNAP device that is running SATA disks ( http://www.wdc.com/global/products/specs/?driveID=610&language=1 ) in RAID5 and the from what I have read SQL Server seems really touchy about backing up onto network drives. Here is some information I have collected that might be useful to other people that run into this problem.
BackupIoRequest::ReportIoError: write failure on backup device ''. Operating system error 64(failed to retrieve text for this error. Reason: 15105).
The operating system returned the error '64(failed to retrieve text for this error. Reason: 15105)' while attempting 'SetEndOfFile' on ''.
The operating system returned the error '64(failed to retrieve text for this error. Reason: 15105)' while attempting 'FlushFileBuffers' on ''.
System Error 64 = The specified network name is no longer available
Here is a link to another form with people talking about this type of issue, a person posted a reg entire that I am going to try to resolve this issue as well as setting the interface to 1000Mbps
I have called Microsoft on this issue and found that the following does work: kgerde
navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanworkstation\parameters
Create a New DWORD value with the name: SessTimeout
set the value: 360 keep it Hexadecimal
(This value might not work for your backup but it was high enough for mine. If this doesn't work increase the value and try again.)
I hope this helps.