Is it 4TB in RAID 1 mode or 4TB in RAID 0 mode?
138193
4Tb in RAID 0 (striped) mode. It comes with 2x2Tb drives so only 2Tb in RAID 1 mode.
2029839
Its a RAID 0 (two drives splitting the data) with two 128gb SSD's creating a logical 256gb hard drive.
1621434
Depend what sizes of hard disk's you installed in this machine. 4 x 4TB = 16TB is the Max.
2250250
The one I bought has hardware raid. I have 4 * 1tb drives installed configured as RAID 5.
188306
yes, I have two of these boxes, & I set them to either raid 0 or leave it at the default which is JBOD. Currently, I buy a lot of Seagate Barracuda 4 terabyte drives, and swap them in and out of these boxes per my various jobs. I work off of the one box that I have at 16 terabytes raid 0, & I back up to the JBOD single drives. it all works fine, & I configure everything using Disk Utility.
1392670
Yes, the default is Synology Hybrid Raid (SHR) which is like RAID1 but more versatile.
415638
Yes, there are three options- Speed (Raid 0), Security (Raid 1), Capacity (JBOD) = Just a Bunch Of Drives or like you asked "two disks separately as two 2TB drives". https://www.lacie.com/us/products/product.htm?id=10573
1510555
That really feels like false advertising - and that is true of all the RAID mirror vendors - not just WD - really gives me a bad taste. If WD are gonna call it a Mirror 4TB then WD should include 2 X 4TB drives and not make us all look for the truth.
150378
Not clear to me why someone would say that? The 2TB model includes a 2 TB drive. 1 TB includes a 1TB drive, and zero means you have to add your own drive.
117365
that's not true, note I had to update the firmware to get that option of Non RAID. But i cant remember if it was the firmware vision it came with or not. But the firmware was available on the product site
1123021
I currently have a 3TB drive in it and it's working fine. I cannot comment on 4TB.
750550
The documentation is a bit unclear on this. In one place it says to use the same size drive, but in the "Replacing a Drive" section is says that you should use the same size or larger, but the extra capacity would be unused. Assuming you are using RAID1 then you should use the same size drives. The drives are SATA interface. I used two identical (same manufacturer, model and probably the same lot) 2TB drives in my configuration.
91781
Either is possible, it has two drives in it and can be used as Raid 1 or you can use them as Raid 0. From recollection it comes preconfigured to be used as Raid 0 - taking more advantage of the the thunderbolt interface.
1563056
I had compatibility issues when I went to the 4TB, some of the 4TB's want work well with the older 3TB, make sure you check the firmware on your 3TB and 4TB if you need them to run JBOD and RAID should never be mixed. I had 3TB in this device and tried a newer 3TB with a different firmware / version. Didn't work. Never would see the full size of the disk.
117366
No, I am using it in a non-raid setup. I did try to use it with a 2 TB drive as a 4th drive. It didn't work. I then put a 500 MB drive on it and it worked. I put the 2 TB directly on a standard sata port.
1895543
It's either/or. When you set the drive up you have the choice of using the RAID 1 or 0 configuration. If you decide to change your mind later, you'll end up losing everything you've stored on the drive. I stuck with the RAID 1 config to provide redundancy, even though it cut the capacity by half.
2258616
The description does say the unit is "2TB". That is the TOTAL of the two drives, so they are 1TB each. You will have 2TB usable storage in RAID 0 mode (performance), or 1TB usable in RAID 1 mode (mirroring/backup).