ext4 error io failure

[bidh]

Hello everyone,

I installed Proxmox last year on a Ugreen DXP 4800 Pro with 2 NVME SSD WD SN700 (of different sizes, I got what I could grab), I used the ext4 filesystem.
I kept my Proxmox install as basic as possible, I only added a NUT server.

My data (on 4 Toshiba HDDs) is managed by a Truenas VM.
I do backups on a PBS VM installed on a Synology NAS.

So far my experience have been smooth.
Until today when pve crashed with this error, I could not login remotely or use commands directly on the NAS.
I had to unplug the device to be able to reboot in my Proxmox USB key.


Apparently a problem occurred on pve-swap.I checked the SMART data after a long check, no errors were found.


So I tried to reboot as normal and the system booted up fine, no more errors ?!



Thank you for reading.

 

[bidh]

I looked around and found a thread about IO error on swap device.
https://forum.proxmox.com/threads/p...ad-error-on-swap-device-ext4-fs-error.181724/

I kept checking the NVMEs but couldn't find anything more than a warning about "using unchecked data buffer".

Oct 21 18:55:46 pve smartd[1059]: Device: /dev/nvme0, opened
Oct 21 18:55:46 pve smartd[1059]: Device: /dev/nvme0, WD Red SN700 500GB, S/N:252483802041, FW:111150WD, 500 GB
Oct 21 18:55:46 pve kernel: nvme nvme0: using unchecked data buffer
Oct 21 18:55:46 pve smartd[1059]: Device: /dev/nvme0, is SMART capable. Adding to "monitor" list.
Oct 21 18:55:46 pve smartd[1059]: Device: /dev/nvme0, state read from /var/lib/smartmontools/smartd.WD_Red_SN700_500GB-252483802041.nvme.state
Oct 21 18:55:46 pve smartd[1059]: Device: /dev/nvme1, opened
Oct 21 18:55:46 pve smartd[1059]: Device: /dev/nvme1, WD Red SN700 1000GB, S/N:25463A802244, FW:111150WD, 1.00 TB
Oct 21 18:55:46 pve smartd[1059]: Device: /dev/nvme1, is SMART capable. Adding to "monitor" list.
Oct 21 18:55:46 pve smartd[1059]: Device: /dev/nvme1, state read from /var/lib/smartmontools/smartd.WD_Red_SN700_1000GB-25463A802244.nvme.state

I am not quite sure where to dig.

apparently unchecked data buffer is not to worry about.