How worldwide name assignments work
Worldwide names are created sequentially in ONTAP. However, because of the way ONTAP assigns them, they might appear to be assigned in a non-sequential order.
Each adapter has a pre-configured WWPN and WWNN, but ONTAP does not use these pre-configured values. Instead, ONTAP assigns its own WWPNs or WWNNs, based on the MAC addresses of the onboard Ethernet ports.
The worldwide names might appear to be non-sequential when assigned for the following reasons:
Worldwide names are assigned across all the nodes and storage virtual machines (SVMs) in the cluster.
Freed worldwide names are recycled and added back to the pool of available names.
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