A 1 minute log was generated using the following commands...
sudo -i echo 1 > /proc/sys/vm/block_dump # Start logging # Wait 1 minute echo 0 > /proc/sys/vm/block_dump # Stop logging exit
Results from /var/log/kern.log are attached. Noise/write occurs at jbd2 entries e.g.... Jul 20 00:15:35 edge kernel: [ 7281.741214] jbd2/sda5-8(347): WRITE block 68124096 on sda5
A 1 minute log was generated using the following commands...
sudo -i vm/block_ dump # Start logging vm/block_ dump # Stop logging
echo 1 > /proc/sys/
# Wait 1 minute
echo 0 > /proc/sys/
exit
Results from /var/log/kern.log are attached. Noise/write occurs at jbd2 entries e.g....
Jul 20 00:15:35 edge kernel: [ 7281.741214] jbd2/sda5-8(347): WRITE block 68124096 on sda5