Hi, received a message from the reseller. No malfunctioning of the drive. The fan and drive noise are normal. Well I need a storage solution. Any opinion on another thunderbolt drive with 4tb which I can use with FCP X. Or is the g-raid the drive to buy despite the noise.
The OWC Mercury Elite Pro Dual seemed a little quiter to me and you can buy the empty case or pre-configured with drives. The CalDigit T3 is quieter still (probably the quietest multi-drive enclosure on the market) but they only sell it with drives; however you can use 2 drives in RAID 0 or 1 and then use the 3rd drive for backup.
I've got a 4th-Gen 2TB G-RAID with USB2/eSATA/FW800 interfaces that's almost 4 years old, and it's as noisy as it has been bulletproof for me. I connect via an eSATA cable with a USB3 converter. It's as noisy now as the day I bought it! The throughput has been great, and constant since Day 1 too.
I stopped using my G-RAID for video work but still use it as a Photoshop scratch disk. I've moved on to a 2-disk custom RAID0 setup with 2 M500 SSDs for video and scratch - compared to my G-RAID it's much faster, much quieter and lighter, has a smaller power brick, and not much more expensive when I figured out the labor cost savings. I'll even use my LaCie Rugged 256GB SSD for short videos before lining up my G-RAID - so much less clutter and noise. But, that's just me.