Usb drive randomly unmounts

stecca · 2024-12-04 21:02:09

I have a usb ssd, randomly it unmounts, sometimes is under load, sometimes is unutilized. Every time it disconnects then seemingly reconnects right after, and every time it changes label.

If i do cat /sys/module/usbcore/parameters/autosuspend it is set to -1, so it's not power save.

lsblk
sda      8:0    0  10.9T  0 disk /mnt/data2
sdb      8:16   0 465.8G  0 disk 
├─sdb1   8:17   0     1G  0 part /boot
├─sdb2   8:18   0 460.7G  0 part /
└─sdb3   8:19   0     2M  0 part 
sdc      8:32   0  10.9T  0 disk /mnt/parity1
sdf      8:80   0   1.8T  0 disk 
└─sdf1   8:81   0   1.8T  0 part /mnt/data1
zram0  254:0    0     4G  0 disk [SWAP]

mpan · 2024-12-04 21:26:36

If that happened during idle only, I’d say it’s power saving.⁽¹⁾ However, it also drops off under load. First, check with a different cable and port.

If not, two questions:

Did you check the same port with another device?
Did you check the same USB-attached SSD on another computer (not just another port)?

It’s possible that it fails due to insufficient power being delivered, or the device itself malfunctioning — in particular under load or noise.

Also please post journal output from the time the issue happens. That may provide us with some hints.
____
⁽¹⁾ Regardless of usbcore’s autosuspend.

Last edited by mpan (2024-12-04 21:27:00)

stecca · 2024-12-04 21:54:12

i used it in another pc for years without problems, i will try with different ports

seth · 2024-12-05 06:04:54

x-ref, https://bbs.archlinux.org/viewtopic.php?id=301073

mpan · 2024-12-05 14:21:09

Yeah, hence I wait for the journal output.

Arch Linux

#1 2024-12-04 21:02:09

Usb drive randomly unmounts

#2 2024-12-04 21:26:36

Re: Usb drive randomly unmounts

#3 2024-12-04 21:54:12

Re: Usb drive randomly unmounts

#4 2024-12-05 06:04:54

Re: Usb drive randomly unmounts

#5 2024-12-05 14:21:09

Re: Usb drive randomly unmounts

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