Arch Linux

wrongturn

Member

Registered: 2021-10-17

Posts: 10

Running hdparm -I on my NVMe drives only prints the device name

Hi. I'm trying to get TRIM working on my hard drive by following the steps in https://wiki.archlinux.org/title/Solid_state_drive#TRIM, but I noticed some strange results trying to run hdparm to query information about the drive. I currently have two drives installed on my system, nvme0n1 is a WD Black SN850 NVMe that I use for Arch, and nvme1n1 is a Samsung 970 EVO NVMe drive that I use for dual booting with Windows.

The output from lsblk looks normal and seems to indicate TRIM support on both drives.

# lsblk --discard

NAME            DISC-ALN DISC-GRAN DISC-MAX DISC-ZERO
nvme0n1                0      512B       2T         0
├─nvme0n1p1            0      512B       2T         0
└─nvme0n1p2            0      512B       2T         0
  └─cryptsystem        0        0B       0B         0
nvme1n1                0      512B       2T         0
├─nvme1n1p1            0      512B       2T         0
├─nvme1n1p2            0      512B       2T         0
├─nvme1n1p3            0      512B       2T         0
└─nvme1n1p4            0      512B       2T         0

But running hdparm on both drives just prints out the device names

# hdparm -I /dev/nvme0n1

/dev/nvme0n1:

# hdparm -I /dev/nvme1n1

/dev/nvme1n1:

I have not found any other threads related to this issue with hdparm. So I'm wondering if it's safe or not to enable TRIM on /dev/nvme0n1? I would also appreciate suggestions for how to get hdparm to display information about my drives. The drives work fine otherwise.

Slithery

Administrator

From: Norfolk, UK

Registered: 2013-12-01

Posts: 5,776

Re: Running hdparm -I on my NVMe drives only prints the device name

Are these drives connected directly to the motherboard or is there some sort of bridge device inbetween?

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Closing -- for deletion; Banning -- for muppetry. - jasonwryan

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wrongturn

Member

Registered: 2021-10-17

Posts: 10

Re: Running hdparm -I on my NVMe drives only prints the device name

They're connected to the slots on the motherboard, as shown on https://www.msi.com/Motherboard/MAG-B550-TOMAHAWK

wrongturn

Member

Registered: 2021-10-17

Posts: 10

Re: Running hdparm -I on my NVMe drives only prints the device name

Did some more digging into this and noticed that hdparm has a verbose option. Running hdparm on nvme0n1 gave the message:

HDIO_DRIVE_CMD(identify) failed: Inappropriate ioctl for device

Googling the message revealed this answer https://superuser.com/a/1412510. Basically hdparm is built for ATA devices, and it does not support NVMe drives. To get similar functionality for NVMe drives, the nvme-cli tool should be used as detailed in https://wiki.archlinux.org/title/Solid_state_drive/NVMe.

Last edited by wrongturn (2022-04-02 23:54:55)