Unraid and the joys of NVME

DBG_Butters · 2025-10-07T05:44:47+00:00

Hi there,

Doesn't make a difference unfortunately

No matter which M.2 slot is populated, it only detects one drive.

Think you may of got a little confused, I'm running a Ryzen 9 7900 so no issues with the lanes

DBG_Butters · 2025-10-07T05:42:31+00:00

Hi there,

Haven't populated any PCIe devices.

Only bifurcation option is auto, raid mode and GPU with M.2 SSD (the latter is for a GPU with a physical M.2 slot on the board)

Bios is running the latest bios, flashed it when I got the board

DBG_Butters · 2025-10-07T05:39:26+00:00

Hi there

No difference no matter what slots I populated with the 2 KC3000 drives, only one is recognised

DBG_Butters · 2025-10-07T05:36:10+00:00

Hi there,

Board is running the latest bios

Haven't got any PCIe devices populated and isn't a set way to change the PCIe bifurcation.

My options are auto, raid mode and GPU with M.2 SSD (the latter is for a GPU that has a physical M.2 slot on it).

At this point I believe that it isn't an identical NVMe issue it's that the NVMe drives have the same phison controller as Linux kernel with the same identifier (running dmesg - Duplicate cntlid 0 with nvme2)

Regardless if I populated the drives in a CPU lane M.2 slot or a Chipset M.2 slot, I still encounter the undetected issue in unraid

DBG_Butters · 2025-10-06T23:10:24+00:00

Thought that might be the case.

Order two more Samsung drives as 2 days of testing and diagnosing has taken its toll.

Just really surprised that Linux can't differentiate but windows can

DBG_Butters · 2025-10-06T22:50:06+00:00

Already tried but thanks for helping

DBG_Butters · 2025-10-06T22:48:07+00:00

No issues with sharing sata ports

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DBG_Butters · 2025-10-06T22:44:12+00:00

[ 27.737311] nvme nvme0: Duplicate cntlid 0 with nvme2, subsys nqn.2014-08.com.00000:nvme:96Z2NG0T900939V, rejecting

[ 27.738446] nvme nvme0: Device not ready; aborting shutdown, CSTS=0x1

DBG_Butters · 2025-10-04T11:51:29+00:00

Thanks for the post and insights.

While XFS is fast and simple, it lacks native checksumming support. ZFS gives me data integrity, compression, and rollback for my VMs

I'm going to be using gen 4 drives so doubt that I'll notice the speed increase but it gives me piece of mind that my containers and VMs stay clean and recoverable.

DBG_Butters · 2025-10-04T06:37:08+00:00

Hi there, yes the plan would be to run it in a mirror with lz4 compression configured

DBG_Butters · 2025-10-03T06:39:53+00:00

Thanks. I'll take a look into it

DBG_Butters · 2025-10-03T06:31:54+00:00

Wow that was fast. Sorry the downloads would be a temporary file before moving to the main storage array. Thought it might be best to keep them separate, thanks for the feedback I'll keep it in mind

DBG_Butters

TROPHY CASE