RH9: discrepancy between free disk space info: df vs. du, why?

From: Rade Trimceski (rtrimces_at_mtu.edu)
Date: 06/23/04

  • Next message: Khan: "Iptables: port 22 open only for my IP" 
    To: "redhat (list)" <redhat-list@redhat.com>
Date: Wed, 23 Jun 2004 02:08:55 -0400

    Hello all!

    I'm running RH9 on a Sony Vaio laptop. I use ext3 for file system and
    2.6.7 kernel. I'm having this puzzling problem with my free disk space.

    I run java based simulations which can generate pretty big files (900MB
    ~ 1.2GB). Lets say that I reboot the machine, using df -h I see that I
    have 1.4GB free disk space, and I leave it running for 4 days. In the
    course of 4 days I create and delete about 40 to 70 files. After
    deleting all the simulation related files (after 4 days of uptime) df-h
    reports only about 123MB free disk space. However if I run du on / I can
    deduce that the free space is indeed 1.4GB. If I reboot the machine df
    -h reports 1.4GB.

    My qeustion to you: what causes the discrepancy between what df and du
    report and how can I fix this without reboot? If I look at the df output
    where does my free disk space go when I delete all the files?

    I've tried to run updatedb to no avail of fixing this. I've also checked
    if /var or /tmp and other dirs get bigger and no directory seems to
    account for the "lost disk space". I'm suspecting this has something to
    do with the journaling capability of ext3. Has anyone experienced
    anything similar to this?

    If people don't have an answer but they have an idea on which list I can
    get help please let me know :).

    Thanks
    Rade 

    -- 
redhat-list mailing list
unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
https://www.redhat.com/mailman/listinfo/redhat-list
  • Next message: Khan: "Iptables: port 22 open only for my IP"

    Relevant Pages

    • Re: Incorrect Free Disk Space Reported On syst Hard Drive
      ... Windows help - www.rickrogers.org ... > free disk space was reported as 13.9gb, ... therefore 13.9gb should be available but syst still ... > reports 6gb available, can anyone help, i have tried ...
      (microsoft.public.windowsxp.basics)
    • Re: Incorrect Free Disk Space Reported On syst Hard Drive
      ... > Was recently creating a video file, ... > free disk space was reported as 13.9gb, ... therefore 13.9gb should be available but syst still ... > reports 6gb available, can anyone help, i have tried ...
      (microsoft.public.windowsxp.basics)
    • Win2k3 Bad Free Disk Space Report
      ... incorrectly reporting the amount of free disk space. ... directories it equals ~60 gb's. ... reports the correct amount of free space is disk defragrmenter. ...
      (microsoft.public.windows.server.general)
    • Incorrect Free Disk Space Reported On syst Hard Drive
      ... the operation i canx the process. ... free disk space was reported as 13.9gb, ... therefore 13.9gb should be available but syst still ... reports 6gb available, can anyone help, i have tried ...
      (microsoft.public.windowsxp.basics)