Seagate Technology (NASDAQ:STX) is one of the largest hard disk manufacturers in the world, and has always had the cash flow to make a dividend favorite among investors. But a lot of analysts are beginning to speculate that any company will face increasing headwinds as demand in the PC market declines. In this video, Motley Fool analyst Jim Mueller gives investors three key metrics they need to follow closely to know if Seagate is a company to stick with -- or not.