The pace where you would increase teh device time out is located at
Windows 2003
Program FIles -> Omniback -> Config -> Server -> Options -> global
Windows 2008
ProgramData -> Omniback -> Config -> Server -> Options -> global
UNIX
/etc/opt/omni/server/options/global
Open the file in an editor, and find the line:
# SmWaitForDevice=WaitForInMinutes
# default: 60 minutes
Make a copy of the line, then, on one line remove the # sign and the 'space' that follows, and set the value to what you want to use, so, for example
SmWaitForDevice=120
# SmWaitForDevice=WaitForInMinutes
and save the file. This will increase the timeout for devices to 2 hours. At your earliest opportunity, stop and restart Data Protector