February 15, 20233 yr I'm new to UNRAID. My setup is 4x4TB HDD (No cache) 1 Parity 3x4TB Disk for storage Since UnRAID works differently, by looking at the screenshot does it look like my setup is protected same as a RAID5? Edited February 15, 20233 yr by thericeking
February 15, 20233 yr 58 minutes ago, thericeking said: I'm new to UNRAID. My setup is 4x4TB HDD (No cache) 1 Parity 3x4TB Disk for storage Since UnRAID works differently, by looking at the screenshot does it look like my setup is protected same as a RAID5? Looks fine, if any 1 drive fails the data will remain available and you can rebuild the array similar to raid 5. Unraid is not backup, ensure you have a backup for any irreplaceable data.
February 15, 20233 yr Keep this in mind... files are written as a whole on a single drive(while also having the parity drive) so if you lost 2 disks... you would still have access to the files on the remaining disks... A suggestion that I tell everyone. When looking at your shares and what write method to use... I suggest using the 'fill-up' choice... Files will be written on disk 1 till it's full then it will go to the next... decreases wear on the other disks and you dont have to wait for 3 disks to spin up... Edited February 15, 20233 yr by mathomas3
February 15, 20233 yr I probably would have chosen xfs for the array disks, but supposedly btrfs has some benefits. Just be sure you don't fill them too full. Default Highwater allocation will work just as well or better than Fillup for most purposes. Most Free is the least efficient. In any case, be sure to set Minimum Free for each of your User Shares to larger than the largest file you will write to the share, so Unraid will choose another disk when a disk gets too full.
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