February 10, 20251 yr Hi I have an cwwk mini nas box, which comes with 4 x nvme slots. I have just purchased 4x WD Red nvme NAS drives and plan to install unraid on it. I have watched several YT videos and read some of the installation set ups/guides but am a tad confused with the general set up (never used unraid) I would like encryption to keep my data secure, its for general storage of documents, movies/music, pictures and downloads and family back ups. The data will be backed up regularly with a portable hard drive and the data is not critical if it gets lost, so not really concerned about back up more about using the full space available to all the 4 x nvme drives. I have read since its an all NVME drive setup, I should use an ZFS pool, is this the best method? Since its not an unraid array, can I skip the parity and cache drive and stick with the ZFS pool with 4x nvmes? Are there any other recommendations to use with an all nvme setup unraid setup? thanks
February 10, 20251 yr Community Expert I would create a single ZFS pool with for devices, raidz1 or striped mirrors, the latter if IOPS are more important than total storage space.
February 10, 20251 yr Author Solution 1 hour ago, JorgeB said: I would create a single ZFS pool with for devices, raidz1 or striped mirrors, the latter if IOPS are more important than total storage space. Thanks, so just for an example if I tried raidz1 I would have to use 1 NVME drive for an parity drive and than have 3 NVMEs left for storage? I am wondering how the speed difference would be in general usage between the ZFS pool vs the RaidZ1, but I guess I can set them both up and give them a bit of testing and find out copying some large video files over maybe with nvmes the speed difference might not be much difference.
February 10, 20251 yr Community Expert 5 minutes ago, HectorG said: so just for an example if I tried raidz1 I would have to use 1 NVME drive for an parity drive and than have 3 NVMEs left for storage? Basically correct, there's no dedicated parity, but would have the space of 3 devices, assuming you mean a zfs raidz1 pool 6 minutes ago, HectorG said: I am wondering how the speed difference would be in general usage between the ZFS pool vs the RaidZ1 Both are zfs pools, raidz1 is good for sustained transfers, but not so good for IOPS, it will have the same IOPS as a single NVMe device, if you wanted to use it with a VM, database, etc, striped mirrors would be better for that.
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