This object identifies the Pairwise role of the Zone/Zone alias
member.
If hpnicfFcZsZoneMemberFormat is 'aliasName', the value of this
object can only be 'none'.
If hpnicfFcZsZoneMemberFormat is not 'aliasName', the value of
this object can't be 'none', and the default value is 'both'
(including both 'initiator' and 'target' role).
This object can be modified while the value of the
hpnicfFcZsZoneMemberRowStatus object is 'active'.
The Pairwise role of a port member takes effect only when the
hpnicfFcZsZonePairwiseEnable of the Zone to which the port member
belongs is set to 'true'.