Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

When having Ubuntu 11.10 idle, hard-disk is still doing "something" periodically for a very small time (I have 8GB RAM). I can hear the seeks every few seconds (iostat tells something like 20kB/s).

What process could cause that? I thought that's a Windows issue only.

share|improve this question
add comment

2 Answers 2

up vote 2 down vote accepted

Use iotop to look at what processes are doing I/O.

share|improve this answer
    
Have an idea what is COMMAND [jdb2/sda1-8]? –  James Dec 15 '11 at 13:43
    
[jdb2] is a kernel process responsible for writing the journal in your filesystem. Perhaps syslogd is doing writes, cron.log or something? –  Caesium Dec 15 '11 at 14:30
add comment

You need to put the computer into power save mode:

sudo pm-powersave true

Less frequent writes to the disk means if you crash you can lose more work though.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.