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 <[email protected]>
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