VSS ISSUE

for my customer the system state and shadow copy components of a remote machine are all running succussfully but on checking the writer status of the same machine most of them including the system state writer are at waiting for completion status. No other VSS providers. Customer asking how come they are successfull !!

 

The remote machine is a WIndows 2003 standard server.. When the writer status is at waiting for completion status, even now when I take a backup of system state it is successfull. What causes the system state backup to be successfull?