storage freezes , kvm , fsck needed to boot Title to be fixed later

RobFantini

Famous Member
May 24, 2012
2,009
102
133
Boston,Mass
we are running into what looks like a storage bug. I know that we have to supply quite a bit more information then will be in this 1ST post.

yesterday our most important order entry system had these symptoms:

1- could ssh in
2- could not access data files . we use cisam data base and the files would ls but could not be read or written
3- logs and dmesg showed no clues as to an issue.
4- rebooting the kvm did not fix
5- at pve console the kvm was at:
stuck at initramfs [spelling?]
note on console to run
fsck /dev/sda1
then boot and OK.

after boot /var/log/syslog showed no issues or clues from before the time of reboot. it looked strangely normal

I have seen a few other systems stuck during reboot and having the ' need to do fsck ' on console. by the way it is great to have that info ].

the next time this happens I will gather more information . what kind of information would help drill down on this bug or configuration issue?
 
two days after the issue we made this change:

most kvm's used write-back cache mode.

changed to No cache default. done 10/22/21 11:45

no issues since then.

PS: storm expected after writing that last line.
 

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