1) Computer jargon 
In computers spindling is the allocation of different files (e.g., the data files and index files of a database) on different hard disks. This practice usually reduces contention for read or write resources, thus increasing the system`s performance. The word comes from spindle, the axis on which the hard disks spin. ...
• (p. pr. & vb. n.) of Spindle • (a.) Long and slender, or disproportionately tall and slender; as, a spindling tree; a spindling boy.
Spin'dling adjective Long and slender, or disproportionately tall and slender; as, a spindling tree; a spindling boy.