Windows 10: Storage capacity monitoring

I have got my storage capacity loaded up to 95%. I acutely need to clean up it. In order to do it I need to understand what types of files are in my storage - to sort all those files by certain categories. What applications can I use to do it besides Microsoft Settings tools? Which of them are the most efficient for my purpose? Thank you in advance.

:)

 

Understanding Storage Spaces capacity descriptions

I have a Storage Spaces array in Windows 10 consisting of 7 SATA HDDs ranging from 3TB -> 8TB each (-edit- for completeness, those drive capacities are: {3, 4, 4, 4, 4, 8, 8}).

I'm trying to understand the Storage Spaces capacity values, shown below:





The section above the drive Name & Letter makes sense in isolation:

• 15 TB
  
  • defined size, with thin provisioning allowing it to exceed actual
    available capacity
    
• Using 14.6 TB pool capacity
  
  • the actual available configured capacity
    

And the 31.8 TB "Total pool capacity" makes complete sense as the sum of the actual disk capacity from each drive.

But...

1. Why is only 14.6 available?
   
   • I've defined my size as 15 TB
     
   • It says I have 17.2 TB available
     
2. What's the relationship here of the 22.5 TB "Including resiliency"?
   
3. What is my actual real max configurable usable capacity?
   
   • I expected to have around 20 TB (66% of 32) - so I'm guessing it's actually only 17.2, but then see question #1
     

 

Storage pool shows correct capacity, explorer does not

I have a storage pool with two 14TB disks. I recently added another 14TB disk to the pool, it shows the disk in the storage pool and the correct capacity is listed. In explorer and any other way to access the drive, it only shows the capacity of the two disks.

 

Blu-Ray Capacity Increased.

every step counts but not all are that memorable. eventually we will be cranking out 3 times the res of 1080p and we will need that kind of portable storage capacity.