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pkovar's avatar
pkovar
Copper Contributor
Mar 17, 2026

Windows NVMe-oF Initiator connect error

Hi everyone,
I am trying to test the new Windows NVMe-oF Initiator within build 29550.1000 but I am not able to connect to a remote storage array - getting the error 
"IOCTL_NVMEOF_CONNECT_CONTROLLER failed with error code 0x1f" (see screenshot).
Any idea what does this error mean or what can be wrong?

 

general
storage
Winserv

1 Reply

  • pkovar's avatar
    pkovar
    Copper Contributor
    Mar 26, 2026

    Found the issue - by default admin queue size is set to 64, my array supports only 32.

    I have to specify admin queue size -as 32 when creating subsystem port

    -as [max admin queue size] - Maximum admin queue size