I have a "parity" Storage Space consisting of 4 x 3 TB drives in my Win10 file server (I think "parity" is roughly equivalent to RAID5).
This should give me roughly 9 TB of usable space, but I've only got 5.5 TB.
How do I get access to the rest? See attached screenshot.
I discovered that if I put 8.25 in the "Storage space size (maximum)" box (middle window of screenshot), then my available space on drive E: ("Raid5") increases proportionately.
But it seems Win10 will let me put in a number that represents more than n-1 drives worth of space - doesn't that kill the parity protection?
The reason I'm running Storage Spaces is to get protection against HDD failure - I don't want to do anything that breaks that.
It seems to even allow a number larger than the total of all 4 drives space - at what point do I lose protection against a drive failure?
I've looked online for documentation but everything I've found is about Windows 8 and/or Server - nothing that addresses these questions about Win10.