We are using a TSQL script to back up our database every night, and in this scrip it uses -DelBkUps 1DAYS to remove the old disk copy of the backup. However we are running out of disk space at the moment and I would like to change this to something like -DelBkUps 0.5DAYS
The documentation here http://msdn.microsoft.com/en-us/library/ms162827.aspx says that i should use time_span but gives me no examples of what is acceptable in this field.
Can some one here help me find acceptable documentation, or give me an example of how I would set the time_span to a number of hours instead of days?