Aug 20 (Reuters) - Windstream Holdings Inc WIN.O :
* Has hired RBC to advise on sale of its data storage business,aiming to raise $500 million-$750 million- Bloomberg citing sources
* Potential bidders for Windstream Holdings unit include private-equity players
ABRY Partners and GI Partners - Bloomberg citing sources
* Source: (http://bloom.bg/1K97JUO)
* Further company coverage WIN.O