IBM TotalStorage SAN Volume Controller Installation Manual page 113

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W
worldwide node name (WWNN)
An identifier for an object that is globally unique. WWNNs are used by Fibre
Channel and other standards.
worldwide port name (WWPN)
A unique 64-bit identifier associated with a fibre-channel adapter port. The
WWPN is assigned in an implementation- and protocol-independent
manner.
83
Glossary

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