Hello,
we were adding some disks to existing aggregate and got this error message:
Cannot add specified disks to the aggregate because the new aggregate size would exceed the system limit. Limit: 400.00 TB.
I found this old article on how to calculate max disk per aggregate: https://library.netapp.com/ecmdocs/ECMP1196986/html/GUID-F47A5CA3-D2F7-4D72-829B-2D1C7F68BC7E.html
It says: "For calculating how many disks you can put into an aggregate before you exceed its maximum size, you use the right-sized, or usable capacity of all data disks in that aggregate."
If I use the usable-size as reported by Ontap 9, our disks have a size of 2.42TB; there are currently 165 data drives on the aggregate, this result in 399.3TB (but the usable space is 359TB, because of WAFL overhead i suppose).
Do you agree with that?
Thank you
Lorenzo
