The whole system goes read-only

[Blackworm]

Hello,

I have installed promox 8.2.4 on my server. All my hardware is new except for an SSD hard disk that I had used to install a proxmix 7.x.x version.

I'm running 4/5 VMs and 8 lxc containers.

It happens quite randomly, I haven't found the trigger yet, but the system goes completely read-only. I've run tests on my SSD disks (with smartctl): no problems reported. I've also run fsck on my file systems to no avail, everything was within the norm.

When the server goes into read-only mode, a simple reboot returns it to a normal state (no data loss).

In this read-only state, error messages appear on the tty (see image). These include errors with the MMP block. However, I can't work out whether these errors are the cause or consequence of another problem.

I hope you can help me

 

[gfngfn256]

What make/type SSD is that /root EXT4-fs directory on. Also what MB are you using.

 

[Blackworm]

My root directory is on a SATA SSD (Crucial CT250MX500SSD1) and I am using a Gigabyte B650M D3HP Motherboard

 

[alexskysilk]

read what you attached closer. your disk is bad.

 

[gfngfn256]

Assuming your SSD isn't full/filling up (check with df -h), & assuming you have already checked the RAM, what I would do (in order):

1. Try installing on a different SSD - yours maybe bad.
2. Try updating the MB BIOS - it is pretty new.
3. Try using an older kernel.

 

[Blackworm]

As you can see my RAM and disk are not full.

$ df -h
Filesystem            Size  Used Avail Use% Mounted on
udev                   16G     0   16G   0% /dev
tmpfs                 3.1G  1.9M  3.1G   1% /run
/dev/mapper/pve-root   67G   15G   49G  23% /
tmpfs                  16G   46M   16G   1% /dev/shm
tmpfs                 5.0M     0  5.0M   0% /run/lock
efivarfs              128K   54K   70K  44% /sys/firmware/efi/efivars
/dev/sdb2            1022M   12M 1011M   2% /boot/efi
/dev/fuse             128M   36K  128M   1% /etc/pve
tmpfs                 3.1G     0  3.1G   0% /run/user/1000

$ free -h
               total        used        free      shared  buff/cache   available
Mem:            30Gi       9.7Gi        19Gi        64Mi       2.0Gi        20Gi
Swap:          8.0Gi          0B       8.0Gi

I will try to update my motherboard, and then use an older kernel. And yes, I think I must test with a new SSD.

Thank you both for your feedback

 

[gfngfn256]

As you can see my RAM and disk are not full.

I meant check the RAM integrity. See here for an easy to read explanation. Maybe use something like memtest86.