I discovered today that our 1u server at work is running two of the above drives or to be precise – WD10EARX. These are green spec drives which I believe run at 5.4K RPM? The two other drives are proper HP 1TB 7.2K RPM drives.
I know the HP drives are mirrored, but I’ve read that the WD Green are not suitable for RAID arrays. Is it possible that they are simply individual drives which don’t have a large role to play and work effectively as they are? It’s been on for almost 3 years, so clearly they work ok?