http://sysunconfig.net/aixtips/df_du_diff_out.txt
that is for AIX but found some light there. Mohammad Salaque ---------------------------------- I just want to live while i'm alive >From: Mojahedul Hoque Abul Hasanat <[EMAIL PROTECTED]> >Reply-To: [email protected] >To: [email protected] >Subject: Re: [bdlug] Re: different commands, different results >Date: Fri, 16 Dec 2005 15:38:53 +0600 > >Emon, > >You are very obervant :) Your first case is interesting. > >Okay, here is my dab at explanation: > >Your first case: > >$ df -h /boot >Filesystem Size Used Avail Use% Mounted on >/dev/hda6 48M 37M 11M 78% /boot >$ du -hs /boot >4.2M /boot > >This is interesting. It's not a normal case. I think you have a file >which is being used by a process, but you have unlinked the file, i.e. >deleted it. Until that process exits, the space taken up by the file >will not be releases and the process will be able to use the file, >until it closes it. This is a well defined behaviour in Unix. > >To test the theory, if you know the process, kill it. Otherwise, >reboot and see if this resolves the issue. > >Now your second case: > >$ df -h /opt >Filesystem Size Used Avail Use% Mounted on >/dev/hda8 1.2G 676M 470M 60% /opt >$ du -hs /opt >698M /opt > >Hmm, more interesting, I can't explain it :) Generally, du should >show a bit smaller number than df. That's because du does not count >the file system overheads. The "bit" is 5-10%, not like your first >example. > >Anyone to the rescue? > >-- >Mojahed ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/hYOolB/TM --------------------------------------------------------------------~-> To unsubscribe send a blank mail to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/bdlug/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
