Here is a similar post, it also contains links to another post on the subject of replacing predictive failure drives. [URL]
Hello, A couple days ago I rebooted my PowerEdge R710.  After reboot, one of the hard drives in my RAID 5  3-drive array was blinking amber.  In Dell Open Manage, it showed that the hard drive was in predictive failure state.  Today (2 days later), I logged into Open Manage and now there is a 2nd hard drive shown in predictive failure state.  I just ordered 2 new Dell branded hard drives, but now I'm a little uneasy and think there will be more to this than just replacing the hard drives.  I also noticed that the Perc H700 firmware is out of date Can you please give me some guidance on how to resolve my issue?   Thank you in advance.
PERC H700 2 RAID 5 drives predictive failure