your disks need a good fsck.. boot into the rescue disk and fsck them.. that should fix them up On 10/10/06, Atul Tyagi <tyagi.atul@xxxxxxxxx> wrote:
Thanks but do u have explaination for dummies. This sounded greek to me :-) On 10/10/06, Manuel Arostegui Ramirez <manuel@xxxxxxxxxxxxxx> wrote: > > El Martes, 10 de Octubre de 2006 15:58, Atul Tyagi escribió: > > Hi All, > > > > I am facing a little problem. I guess its more of a conceptual problem > > rather than a OS issue. > > > > One of my software raid partiton /dev/md4 is about 30 GB. I had put a > file > > of about 18GB in that jus for few mins and then deleted that. Now even > > after about 6 hrs. My RHEL4 system gives me weird output. following are > the > > outputs that might help you understand. > > > > df -h > > === > > > > [root@pingu ~]# df -h > > Filesystem Size Used Avail Use% Mounted on > > /dev/md0 5.0G 2.7G 2.1G 56% / > > /dev/md1 99M 17M 78M 18% /boot > > none 1014M 0 1014M 0% /dev/shm > > /dev/md2 5.0G 190M 4.5G 4% /var > > /dev/md4 30G 22G 5.9G 79% /usr/local/test > > > > du -hs > > ===== > > [root@pingu ~]# du -hs /usr/local/test > > 2.7G /usr/local/test > > > > Can some one please clear my doubt and explain why there is a such a > hugh > > difference in both the commands. Disk usage shown by df -h is 22G where > as > > du shows 2.7G. > > > > Would appriciate any pointer to this problem. > > > > Thanks, > > > > Atul > > quote from: http://www.acersupport.com/ess/articles/articles/14.cfm > > You may often see a difference in the output of the two commands "du" and > "df". For example, a df -t is executed on a system and it comes back with > the > following: > > (/dev/root ): 216000 blocks 41950 i-nodes > total: 260460 blocks 43392 i-nodes > > If you subtract the total blocks free from the total available you get: > 44460. > The command du -s (from the root directory) shows: 39130. This is a > discrepancy of 5300 blocks. However, there is a big difference in how > these > two utilities work. The df command takes a look at the freelist and gives > a > picture of how many blocks are available for use. The du command takes a > snapshot of the blocks in use by a file or directory, BUT, neither does it > count the blocks used by the directory entries themselves, nor does it > count > the blocks used by special files (ie. device files, named pipes, etc.). > > So, if you want to get an approximation of what is in use from looking at > the > df -t output you need to perform one more step. > > Perform the subtraction to determine the number of i-nodes in use and then > multiply that by 4. When you add that value to the one you got previously > you > will get an approximation of the total blocks in use. This will still not > match exactly! > > The general point is that things aren't always as they seem at first > glance. > There are many utilities in UNIX. Determine what it is that you really > want > to know and then use the appropriate tool. > > -- > Manuel Arostegui Ramirez. > > Electronic Mail is not secure, may not be read every day, and should not > be used for urgent or sensitive issues. > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subjectunsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
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