Hi everybody,
I am facing with this error as a result of the dmesg command:
EXT4-fs (dm-0): error count: 13
EXT4-fs (dm-0): initial error at 1394540112: ext4_journal_start_sb:296
EXT4-fs (dm-0): last error at 1397148650: ext4_journal_start_sb:296
It's in the production environment of one of our customers, a very important server hosting a Oracle Database 11.2.0.3.0 on Oracle Linux: 2.6.39-400.215.7.el6uek.x86_64 #1 SMP Fri Aug 8 20:51:11 PDT 2014 x86_64 x86_64 x86_64 GNU/Linux.
This error message repeats itself over and over as a result of the dmesg command. I have noticed lots of IO wait's by measuring CPU activity and initially thought that it could be related. I'm afraid that it could result in data loss.
I have searched all over the web but haven't found any answer so far. Could anyone please help me resolve this issue? Although some good sugestions were made below, need more contribution.