Is there a way to see how much data has been written to a disk in a day?
... Other than comparing the amount of spaced used with the day prior... (This is a FIFO buffer)
This might work on a virutal machine although I think the counters are for the period that the VM has been "Up".
On a regular disk you may be able to script the data using the "Win32_PerfRawData_PerfDisk_PhysicalDisk" class for a short period but I don't see any easy way to get a total for a "day". I 'm not sure you could even do a comparison of space used since some data may be removed during the day rendering the comparison to the previous day invalid.
This might work if you're interested in the amount of data written by a process:
That would work out pretty well. Thanks, Zippo.