I'm confused.

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.

enter image description here

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.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.