Storage Array Capacity license criteria
Licensing is based on the raw capacity of storage arrays, for arrays that have been polled within the last 30 days. This capacity is the total capacity of all the physical disks in the storage array. If arrays are provisioning storage to other arrays and we are capturing data from the source arrays, to avoid double-counting of capacity, only the capacity of the source arrays (not the recipient arrays) is counted toward licensing.
The above description applies to most storage arrays, with the exceptions listed in the Vendor-specific capacity license criteria section.
The following vendor-specific descriptions list how raw capacity is calculated for certain specific vendors.
EMC Symmetrix Arrays:
Sum of the capacity of all physical disks from all array groups--no spares. : When viewing raw capacity in EMC Control Center, disk group 0 (hot spares) is not included in the total capacity calculation--accounting for the difference between the EMC and Capacity Manager reported capacity values.
EMC CLARiiON Arrays:
Sum of the capacity of all physical disks from all array groups--including spares (drives that are not allocated to an array group).
HDS Arrays:
Sum of capacity of all PDEVs from all array groups. Capacity Manager assumes that all PDEVs are part of an array group, so PDEVs that are marked as--Not included in an array group--are included in the capacity calculation. That is, no disks are treated as spares.
NetApp Arrays:
Sum of the capacity of all physical disks in the filer/array. For NetApp vFilers and V-Series, this represents only internal raw capacity and does not include vFiler capacity or gateway external capacity.