FBWF Disk Size Display Modes
5/10/2007
Configure FBWF to display either actual disk size or virtual disk size.
Displaying actual disk size shows the total capacity, used space, and free space of the underlying disk.
Displaying virtual disk size includes the size of the FBWF overlay cache in the calculation. In virtual disk size display, the total capacity is the sum of the actual used space and the maximum overlay cache size. Free disk space is reported as the available space in the overlay cache. Free disk space is calculated in the following way:
- If the paged pool is larger than the overlay cache, free disk space is calculated by subtracting the size of all cached data from the FBWF threshold value.
- If the paged pool is smaller than the overlay cache, free disk space is calculated by subtracting the size of the paged pool from the FBWF threshold value.