This read-create FcList is a bitmap describing which zones with IDs 6145 through 8192, identified by zoneIndex in the zoneTable, belong to this zone set on this VSAN, with a '1' bit marking membership and the zero-length string as the default. It lets management software determine zone set membership in this higher ID range efficiently. For example, an admin managing a very large zoning configuration relies on this bitmap segment to confirm zones numbered in the 6145-8192 range are correctly assigned to the intended zone set.