Kh_model, The issue here does appear to be compatibility. I am not showing that drive as being compatible in the 13th generation R930, as I don't show it listed as compatible with anything later than the 12th generation of Poweredge servers. If you private message me your svc tag I can verify some compatible drives for you.  Hope this helps.
I am in the process of learning how to configure a barebones PowerEdge R930 server. Now that memory and processors are installed and working with the latest bios and firmware, I have begun to focus on the task of adding hard drives. I have puchased a used Seagate ST91000640NS hdd and it is now installed on backplane at BayID 3, as device 0, with cable connection to PERC H730p Adapter. No other drives are currently installed. No operating system has yet been installed.  The hdd has a SATA interface, with a 2.5 inch form factor, a capacity of 1T and it is an enterprise-quality hdd. I have observed a rapid flashing orange light for several minutes when the system first boots. After a few more minutes have passed, there is no longer an orange light flashing but instead there is a rapidly flashing green light. Should I take this as normal behavior? I have looked at LED light explanations online which seem to suggest that flashing green may indicate "rebuilding" or a drive that has not yet been detected. I am not sure how long I should wait for the status of the LED to change before taking additional actions. For example, I am not sure if I should replace the hdd immediately, or take another alternative action. Among possible alternative actions, I am not sure if I should upgrade the firmware for the hdd, or if I should wait until after an operating system has been installed, or if I should wait until after the H730p has had a driver and firmware update. If anyone can offer a common-sense suggestion, please know that your comments will be greatly appreciated. An ebay vendor stated that the ST91000640NS is compatible with R930, but I have now realized that no firmware seems to be available for this specific hdd when I search with my service tag from the R930 driver search page here on the Dell website. Besides firmware support, is there any other way to determine hdd compatibility between ST91000640NS and R930 server? Thank you to all in advance.    
SATA hdd initial installation displays rapidly flashing green light on 
PowerEdge R930 barebones