unrecognized other space?

[yangqi]

 See the attached photos, the other space size is growing. Every single drive is hidden in the explorer, I only deal with the pool. And I am sure there are no other files outside the hidden drivepool folder on each drive. Any one know what are these other files?

 

Never mind, I think I figured out. It's the virtual disk that is mounted in the vm, drivepool probably couldn't identify it while it is being used.

[Christopher (Drashna)]

Anything outside of the pool (like just on the drives) is marked as other. Also, stuff used by the OS (such as shadow copies for Previous Versions/System Restore), or in the recycle bin is marked as "Other".

 

Additionally, depending on file sizes and sector sizes, there usually is some discrepancy between the actual amount of data on the disks, versus how much space is used up on the disks. Usually this isn't much, but as the pool grows in size, this can add up.