Some help please Folks,
I am trying to find a way to re-organise my storage pool. It currently consists of 3x3TB disks. The disks are reporting 94.3% full and I need a lot more space. What I wish to do is change it to 2x3TB + 2x4TB with parity.
I have an idea how to do this and I need advice before I will attempt it.
As I said, I have a single Storage Space in a Storage Pool consisting of 3x3TB disks. It is non parity, non mirrored, thinly provisioned. I cannot therefore remove a disk.
Will this work.
1) Add 2x4TB disks to the Storage Pool.
2) Create a new Storage Space with parity. I need advice on the best options. I will be going from 9TB to 14TB in total and wish to maximize the usable space. I just need to be able to remove one disk.
3) Move all of my data from the original Storage Space to the new. I am assuming that, as I move the data across it will free up space on the original Storage Space and make it available to the new one.
4) This will leave the original storage space empty.
5) I delete the original Storage Space.
5) Because I now have parity, I can remove one of the 3TB disks.
Will it work?
I am running windows 8.1.
I have noticed that, even though I have 3 disks in my Storage Pool each marked as 2.72TB, which you would think would give you 8.16TB, in reality I only have 7.72TB. I am losing .44TB. I wonder why.
Dave