ext3 filesystem going read-only for no apparent reason

Solution In Progress - Updated -

Issue

Initially once server bootup i could see /data is rw:

# cat /proc/mounts | grep /data
/dev/sdb1 /data ext3 rw,relatime,errors=continue,user_xattr,acl,barrier=1,data=ordered,usrquota 0 0

After sometime its changing to ro:

# cat /proc/mounts | grep /data
/dev/sdb1 /data ext3 ro,relatime,errors=continue,user_xattr,acl,barrier=1,data=ordered,usrquota 0 0

No logs showing any remounts

Environment

  • Red Hat Enterprise Linux 6.5
  • ext3

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