[Ocfs2-users] File data inconsistency

[Jeff Bachtel]

All md5sum operations are performed AFTER the cp from a twice-verified
good source ISO to the ocfs filesystem in question has completed.

vpr-app-02:~ # md5sum /ocfs/xen/openSUSE-10.2-GM-DVD-i386.iso 
4a46f8afaab565709d6e98151f84ef54 /ocfs/xen/openSUSE-10.2-GM-DVD-i386.iso
vpr-app-02:~ # md5sum /ocfs/xen/openSUSE-10.2-GM-DVD-i386.iso 
bbcf65151b785dd3cab626144b8d44db /ocfs/xen/openSUSE-10.2-GM-DVD-i386.iso
vpr-app-02:~ # sync
 (an unnecessary sync, but it amused me)
vpr-app-02:~ # md5sum /ocfs/xen/openSUSE-10.2-GM-DVD-i386.iso 
773c5acbcb251eb0ab77e1daa091fa83 /ocfs/xen/openSUSE-10.2-GM-DVD-i386.iso
vpr-app-02:~ # md5sum /ocfs/xen/openSUSE-10.2-GM-DVD-i386.iso 
7f3e9877497edda5315a5c7d20cf3c1c /ocfs/xen/openSUSE-10.2-GM-DVD-i386.iso

On the source system:
vpr-app-01:~ # md5sum openSUSE-10.2-GM-DVD-i386.iso 
cee25aee186181d3ac1d0f6b28a19a17  openSUSE-10.2-GM-DVD-i386.iso
 (this is a good md5 sum, as verified from the opensuse.org site)
vpr-app-01:~ # md5sum /ocfs/xen/openSUSE-10.2-GM-DVD-i386.iso 
a8b9c90555e6649363948758de4daddd /ocfs/xen/openSUSE-10.2-GM-DVD-i386.iso


vpr-app-01:~ # ls -al openSUSE-10.2-GM-DVD-i386.iso /ocfs/xen/openSUSE-10.2-GM-DVD-i386.iso 
-rw-r--r-- 1 root root 3881041920 Jun 26 00:44 /ocfs/xen/openSUSE-10.2-GM-DVD-i386.iso
-rw-r--r-- 1 root root 3881041920 Mar 14 12:22 openSUSE-10.2-GM-DVD-i386.iso

Can anyone explain Schroedinger's filesystem to me? It's making Xen
domU installs difficult, and giving me errors when backing up
databases stored on ocfs2 shares.

Thanks,

Jeff Bachtel

(systems in question are patched OpenSuSE 10.2:

vpr-app-01:~ # rpm -qa | grep linux
linux-kernel-headers-2.6.18.2-3
util-linux-2.12r-61
vpr-app-01:~ # rpm -qa | grep ocfs
ocfs2-tools-1.2.2-11
ocfs2console-1.2.2-11
ocfs2-tools-devel-1.2.2-11 )