Western Digital4TB 3.5 Inch SATA III, 7200 RPM, 64 MB Cache Enterprise Hard Drive (Western Digital4000FYYZ)

I had enough scares with consumer grade drives... Had failures of green drives... in testing... complete junk... only put on a green drive stuff your ok losing !!!I opted for this drive WD4000FYYZ actually quite a few of them... in a RAID they are very very quick... if you use raid 5 (minimum 3 drives) You will lose only one drives capacity to parity (3 X 4Tb drive will ONLY = 8Tb of RAID 5 storage actually less after formatting) BUT the loss of capacity is in exchange for the safety and security of SINGLE DRIVE FAILURE fault tolerance... meaning one drive can fail and the integrity of your information is maintained... at $300 per drive that is a hefty price to pay... but so is the price of data recovery service... and its expensive to have a hospital to restart your heart when you think all your data is lost... forever... with that in mind these drives look more and more attractive... also if you RAID "consider" if you have a controller card failure or power supply failure that's also an issue... for maximum safety... you need redundancy of those items as well to limit your overall exposure from potential data loss emanating from failures of these sources as well...Can your data ever be 100% safe... NO... but you can limit the possibility of loss to a very low acceptable level... burn your most critical information to optical disk or buy another HDD and put in a safety deposit box just in case your house burns down or floods... also a great enclosure like the QNAP Pro Series or equivalent since that is just as important as the quality of the drives... themselvesGreen Drives - are junk, take my word... spin the wheel and take your chancesRed Drives - I have no experience with so I offer no opinionBlack Caviar Drives - I have had many and can not recall a failure... EVER... better Price per MB of storage than Enterprise Class with excellent reliability... it would be far safer IMO to Mirror 2 of these drives then have 1 Enterprise Class Drive that's something to consider in your pockets are not bottomless !!!Enterprise Class - when only the best is good enoughBackground former Senior Systems Engineer with EMC Corporation so I am probably dispensing reasonable information... I hope I helped someone from losing information that's not easy to replace... Good Luck...

I must say that I love the packaging this HDD came in that's very securely protected from damage. This drive is new as it was never used that is evident by the packaging. However, it is not recently manufactured though because the manufactured date shows 2015 on the label. Nevertheless, it is still new as it has not been used before.In using it, on the other hand, at first I didn't know or understood loading it in Linux that HDDs over 2TB is not supported in Linux where partitioning is concerned. I am using Linux Mint 19 Cinnamon and it apparently doesn't seem to have support for using drives greater in storage size than 2TB so no GPT partition style support except MBR partition style. So when I saw that the drive was somehow automatically divided into 4 preset partitions that could not be removed, resized or addition ones able to be created I thought that something was wrong with the drive itself. But when I decided to see what would happen when using it in Windows Disk Management Console a prompt came up asking what partition style that I would like to initialize the disk with either MBR or GPT.Not too familiar with the difference or benefits of one vs the other I decided to do a little research on the difference and benefits of using MBR vs GPT partition styles. As it turns out once you are using HDDs with a storage capacity greater than 2TB you must use GPT partition style to initialize the drive and great your partitions. MBR only supports less than 2TB and up to 4 partitions on the drive so that is why when I connected the drive in Linux and it showed only 4 preset partitions and prevented me from editing, deleting or creating additional partitions then I understood what was the problem.It wasn't the drive that was the problem but Linux OS doesn't support GPT except MBR. Whether or not this can be mitigated to switch to GPT to initialize a HDD with storage capacity greater than 2TB is not necessary for me right now. However, once I used Windows to setup the drive with GPT partition style I was able to create the partitions I wanted with no problems and everything now works great now.