The variable capillary force arising between the surfaces of a slider
and a textured magnetic disk is explored. Disk texture is modeled with
an ensemble of bumps having geometries characteristic of laser-textur
e. Lubricant redistribution is modeled dynamically while elastic defor
mation of bumps is described by Hertzian contact models. The results d
emonstrate a significant impact of geometry on capillary spreading and
on the subsequent net capillary force.