When adding a parity drive, the hard drive must be the same size or bigger than any other data drive in your array. You can add up to 2 parity drives. If you have more than 6 data drives connected, I would recommend having 2 parity drives set up. Like that, if 2 drives happen to...
UnRAID utilizes a parity-based system that allows users to add drives of varying sizes to their array without any loss of data. This feature is especially beneficial for users who need to expand their storage capacity over time, as it eliminates the need to purchase expensive, high-capacity dr...
When I decided to build a NAS many years ago, I wanted a system which would give me maximum flexibility with drive configurations. One of Unraid’s major advantages is that you can mix and match different drive sizes into an array. Unraid allows me to expand or even shrink my storage cap...
which is where you’ll see the “array” of drives you have. Assign your largest drive as the parity, and all other drives below that. If you have a cache drive (which we recommend using anSSDfor), that section is below the standard array settings. ...
Just like in the previous case, the program can’t build the array automatically, and it displays a parity disk with an unallocated area and a disk with the file system, while one disk from this array is lost. In the end, you have a drive containing some data that can be ...
Still encountered the exact same issue with the WebGUI not accessable which means I can't restart my Array. The only thing I haven't done is replace my USB drive and start with a fresh copy. This is slightly frustating as I don't see anything wrong with the network as I can see ...
In retrospect I should have known something was wrong when Unraid reported the array being stopped, but I still saw lots of disk activity on the SSD drive bay lights. I suspect the BTRFS rebuild was still ongoing, or mounted, even if Unraid reported the array being stopped. No problem, I...
you start writing directly to the NVME drive and your speed drops to whatever the write speed is of the drive. Sometimes this work can be offloaded into the RAM of your server, which really helps. I have no idea if unRAID supports this but if it does having “too much” RAM isn’t...
Spin down all drives in the array You can choose to forcefully spin down all drives. If there's an active session, no worries - they may experience a temporary interruption, but the drive needed will automatically spin back up: for dev in /dev/sd?; do /usr/local/sbin/emcmd cmdSpin...
etc. I am no expert on drive design & manufacture but it seems that you do get what you pay for here. That said, it does seem to be counter intuitive to want to try and save money on power by spinning down the drives if they are going to cost me $300 a month to repla...