> # Domain Manager Persistent FcIds

> Field | Description
> --- | ---
> FcId | The FC ID assigned for this WWN on this VSAN. The third octet must be 0x00 if value of PersistencyNum is area.
> Mask | The number of FC IDs starting from PersistencyFcId which are assigned either statically or dynamically for this WWN on this VSAN. The value one means just one FC ID is assigned. The value area means all the FC IDs in the area that is specified in the second octet of FcId are assigned. Typically, 256 FC IDs are assigned for an area. This value cannot be changed if the value of Used is true.
> Used | Indicates if this FC ID is used or not.
> Assignment | The type of persistency of this FC ID.

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