From: Dan Stromberg Subject: df inconsistent from one OS to another Date: Fri, 22 Oct 2004 18:05:46 -0700 Sender: nfs-admin@lists.sourceforge.net Message-ID: <1098493546.3601.720.camel@tesuji.nac.uci.edu> Mime-Version: 1.0 Content-Type: text/plain Cc: Dan Stromberg Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list2.sourceforge.net with esmtp (Exim 4.30) id 1CLALu-0003IK-3g for nfs@lists.sourceforge.net; Fri, 22 Oct 2004 18:05:50 -0700 Received: from dcs.nac.uci.edu ([128.200.34.32] ident=root) by sc8-sf-mx1.sourceforge.net with esmtp (TLSv1:AES256-SHA:256) (Exim 4.41) id 1CLALt-00025H-D3 for nfs@lists.sourceforge.net; Fri, 22 Oct 2004 18:05:50 -0700 To: Linux NFS Mailing List Errors-To: nfs-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: Discussion of NFS under Linux development, interoperability, and testing. List-Post: List-Help: List-Subscribe: , List-Archive: We have an RHEL 3 system, which is NFS exporting a Lustre filesystem, to an AIX 5.1 system. But I'm getting the following inconsistent results: AIX 5.1: esmf04m-root> df -k /mnt/lustre Filesystem 1024-blocks Free %Used Iused %Iused Mounted on esmft2:/mnt/lustre 125082071680 123453448000 2% 24757 1% /mnt/lustre RHEL 3: [root@esmft2 lustre]# df /mnt/lustre Filesystem 1K-blocks Used Available Use% Mounted on config 22002856592 508400840 20376770744 3% /mnt/lustre [root@esmft2 lustre]# Based on the number of disks aggregated into the underlying lustre filesystem, we believe that the df on the RHEL 3 system is correct. I prowled around in the python os and vfstat modules, and determined that the AIX system believes that the filesystem's fundamental block size is 32768, while the RHEL 3 system believes the filesystem's fundamental block size is 8192. While these numbers differ by a factor of 4, dividing the AIX number by 4 does not give the hoped-for result. Does anyone have any guesses (or better :) as to what might be causing this inconsistency? Thanks! -- Dan Stromberg DCS/NACS/UCI ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs