How to find cause of main file system going to read only mode

Posted by user606521 on Server Fault See other posts from Server Fault or by user606521
Published on 2013-10-22T07:59:02Z Indexed on 2013/10/22 9:59 UTC
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Filed under:

linux

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ubuntu

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filesystems

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ubuntu-12.04

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read-only

Ubuntu 12.04

File system goes to readonly mode frequently. First of all I have read this question file system is going into read only mode frequently already. But I have to know if it's not caused by something else than dying hard drive. This is server provided by my client and I am just runing there some node.js workers + one node.js server and I am using mongodb.

From time to time (every 20-50h) system suddenly makes filesystem read only, mongodb process fails (due read-only fs) and my node workers/server (which are started by forever) are just killed.

Here is the log from dmesg - I can see there some errors and messages that FS is going to read-only, and there is also some JOURNAL error but I would like to find cause of those errors..

http://speedy.sh/Ux2VV/dmesg.log.txt

edit

smartctl -t long /dev/sda
smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.5.0-23-generic] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

SMART support is: Unavailable - device lacks SMART capability.
A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.

What I am doing wrong? Same is for sda2.

Morover now when I type any command that not exists in shell I get this:

Sorry, command-not-found has crashed! Please file a bug report at:
https://bugs.launchpad.net/command-not-found/+filebug
Please include the following information with the report:

© Server Fault or respective owner

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