Sadly to report I don't have very good experience with this new series ST4000VN000 from Seagate. I rescently obtained TS-869 PRO, and equiped it with 4 x ST4000VN000 in RAID 5 configuration.
After just little over 2 weeks that the drives were in the array, one of the drives has totaly failed, and TS-869 PRO management suggested drive replacement.
Interestingly I have had first FW 3.8.4, then upgraded it to FW 4.0.4 and now 4.0.5 FW, and neither of those 4.0.x FW versions activated the red light on the drive bay suggesting a fatal error in the system, (which was first discovered under 4.0.4 FW version), altough it was detected in the FW management.
I took the drive out of the bay and plugged it in the regular computer for testing purposes, to see if there is realy a drive failure in question since those latest 4.0.x FW are still not quite stable.
Sadly to report the drive couldn't even pass the short internal drive test in the Seagate Seatools testing tool, so I'm returning it.
I specificly requested from my local supplier these drives because I believed they were more stable and relieable than the ST4000DM000 series (which were 20 euros cheaper), even considered it for the RAID 0 configuration until i equip the system with additional 4 drives, lucky me I decided to do RAID 5 configuration from the beginning. Good thing is I got 3 years warranty on the drives from the local supplyer.
So I'm returning the drive tomorrow.
One thing that realy bothers me is the very sharp (his-)noise during the spin-up process of the drives when the TS-869 PRO wakens up from sleep mode. I can hardly even recall hearing such (his-)noise from any drives before since the first WD Caviar series. And those had some serious problems as I remember. Altough I can say that the drives are operating relatively quiet once they get to ther operating RPMs.
Well, to uderline my suspicions from noone else than the WD and their exeprice from some quote i picked up on the WD EZRX drive discussion in this forum, I can say that I don't have a good feeling about this drive series
ToreBK wrote: WD: "Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time".
I'll post updates after I replace the faulty drive and hopefully REBUILD my RAID array succesfully.