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September 2004

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Subject:
problem with large filesystems and 'df'
From:
Eric Wu <[log in to unmask]>
Reply To:
Eric Wu <[log in to unmask]>
Date:
Thu, 16 Sep 2004 15:29:34 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (61 lines) 
Hello all,

I am having a problem recognizing an NFS mounted 3.2 TB bluearc NAS.
df is showing the wrong size with SL install, but only on i386.

My experiments show:

1. Stock i386 SL 3.02 kernel shows a 1.3 TB filesystem size
2. Stock x86_64 SL 3.02 kernel shows correct filesystem size
3. SL 3.0 rolling kernel shows a completely wrong filesystem size.
4. Stock i386 RH 7.3 kernel on top of SL 3.02 shows correct filesystem size
5. RH 7.3 (with customizations)with i386 custom 2.6 kernel also shows 1.3
TB filesystem size
6. Fedora core 2 x86_64 shows correct filesystem size.
7. Suse 9.1 i386 shows correct filesystem size.

I do not have a "true" RHEL kernel to test out.

Any ideas?

Thanks

Eric


Filesystem            Size  Used Avail Use% Mounted on
/dev/hda4              33G   29G  2.7G  92% /
/dev/hda1             251M   28M  210M  12% /boot
none                  125M     0  125M   0% /dev/shm
bluearc:/u10          3.3T   11G  3.3T   1% /mnt/tmp
[root@eshell03 mnt]# ls
cdrom  floppy  tmp
[root@eshell03 mnt]# uname -a
Linux eshell03.bbn.com 2.4.20-28.7 #1 Thu Dec 18 11:23:36 EST 2003 i686
i686 i386 GNU/Linux
[root@eshell03 mnt]#



[root@eshell03 mnt]# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/hda4             34058976  29555020   2773756  92% /
/dev/hda1               256667     28466    214949  12% /boot
none                    125852         0    125852   0% /dev/shm
d4mhome:/export/u10/home
                      165126420  63886748  92851736  41% /net/d4m/home
bluearc:/u10         1367366624  10787348 1356579276   1% /mnt/tmp

[root@eshell03 mnt]# uname -a
Linux eshell03.bbn.com 2.4.21-15.0.2.ELsmp #1 SMP Fri Jun 18 11:25:02 CDT
2004 i686 i686 i386

Filesystem            Size  Used Avail Use% Mounted on
/dev/hda4              33G   29G  2.7G  92% /
/dev/hda1             251M   34M  205M  15% /boot
none                  123M     0  123M   0% /dev/shm
bluearc:/u10             1     1     1   0% /mnt/tmp
[root@eshell03 mnt]# uname -a
Linux eshell03.bbn.com 2.4.21-20.ELsmp #1 SMP Thu Sep 2 16:47:25 CDT 2004
i686 i686 i386 GNU/Linux

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