SATA and IDE come in many different price points -- green(cheapest), blue, and black label (better quality), but generally are expected to be shut down/cool off on a somewhat regular basis.
Even though they are not built specifically for server use, I know people who have bought black label SATA drives in their servers just fine ...
I would NEVER use a green label HDD in a server, as they have power-saving technology that spins down the drive whenever it has been idle for 30 or 60 seconds, and all that wear and tear on the drive - not to mention the delays it will cause in accessing your data.
Blue label HDDs are the most common retail level drives. My experience is that there is no real guarantee how these drives will last. I have clients with 1-2 year old laptops that need new hard drives, while I have some Hitachi and WD Blues that are 5-6 years old and still running strong ... YMMV
Black label HDDs are the favorite of gamers and custom builders, and are built for more demanding consumers, but are still not intended for servers running 24/7.
SAS drives -- the successor of SCSI -- are commercial grade drives that are better built with better bearings and heat dispersion, and intended for server use ....
Sure you will pay more for them, but they will most likely outlast any SATA drive.
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