I/O Cmd (0x8)...I/O error


New Member
Feb 13, 2023
Problem...maybe: Soooo looking at the screenshot...is my M.2 failing or just junk to begin with? Or is this normal? Can you tell I'm new? From the terminal I am getting the error listed below (also in attachment)

nvme0n1: I/O Cmd(0x8) @ LBA 7992285696, 256 blocks, I/O Error (sct 0x0 / sc 0x80)
critical target error, dev nvme0n1, sector 7992285696 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 2

Prior to installing proxmox I wiped the M.2 from the bios. PVE appears to be working fine...but then again I don't have anything on it yet. No VMs, no containers, nadda. Thought I would ask if this thing is going to eat it before deploying a bunch of stuff on it. As always, Thanks for the help.

Proxmox PVE 8.1.3
CPU: AMD Ryzen Threadripper 2990WX 32-Core Processor
1xM.2 4TB hosting PVE 8.1.3
(unplugged) Storage: 1x 4TB Spinning Rust that was hosting Proxmox 7.2.3 before I installed the M.2 and a fresh install of PVE. The little gremlin inside started knocking on the drive shell wanting out I guess. Yeah, R/W head is hitting the drive case.
3x 12TB Spinning Rust TrueNAS Storage


  • NVME Crit Target Err.jpeg
    NVME Crit Target Err.jpeg
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  • NVME Stick.jpeg
    NVME Stick.jpeg
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What does SMART say about NVMe?

If you are of the opinion that it cannot be defective, it is always a good idea to take it out of the slot and clean the contacts.
Interesting update. I rebooted the machine and haven't had the problem since. I wonder what that was all about?


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