Storage Boards Cleanup
To make it easier to find information about HPE Storage products and solutions, we are doing spring cleaning. This includes consolidation of some older boards, and a simpler structure that more accurately reflects how people use HPE Storage.
Disk Arrays
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ACU and unused space

Alfredo_20
Occasional Advisor

ACU and unused space

I added two 146GB disks to an existing array with a logical disk of 69.8GB (RAID 1-0 obtained from two 72GB HDs).
Now I see in ACU an unused space of 138GB, but if I try to extend the logical disk with ACU wizard I can obtain max 138GB (always in RAID 1-0).
Why cannot I obtain the size of 69+138GB as I expected from 2x72+2x146 HDs?
And if ACU doesn't permit mirroring on different sized disks without wasting extra space (refered to the smallest disk in array), how can I remove the new disks from array (they are still "unused") ad adding them to a new array?
Thanks for support and best regards
Alfredo Premi