SUMMARY-2: df displays wrong numbers

Dear sun-managers,

a couple of weeks ago I asked a question about df displaying wrong
numbers for a 300GB filesystem.

After posting my first summary (which did not contain a solution for
the problem) I recieved a couple of additional comments. One of them
came from Albert White which contained the solution for the problem:

Quoting from his mail: "Not sure if its applicable but bugid 
  "4278679 df -k gives incorrect output in SEVM 2.6 in case of fs 
  size > 200GB" is fixed in 106541-12."

Last week we upgraded the machine to the current Solaris 7 patchcluster
(which contains 106541-23) and the problem went away. It seems that
one may be hit by bug 4278679 even if one is not using the Sun Enterprise 
Volume Manager.

Thanks again to all who offered their help,

Jan-Olaf

> Original question:
> 
> ===========================================================================
> Dear sun-managers,
> 
> after one of our servers started reporting "file system full" errors
> whereas all our monitoring tools told us that there were still some
> 15Gb free I noticed some strange problem:
> 
> For that file system the df-output seems to be wrong. Used+avail
> capacity is about 15Gb more than the total space in that file system
> (see df output below). So when "used" equaled "kbytes" the machine
> started reporting "file system full". "avail" still showed 15Gb free.
> 
> Does anyone know what might be the cause of this problem? I have 
> two other identical machines, where the df output is correct (the only
> difference there is that the file systems on those machines only
> have 150Gb capacity).
> 
> The machine is a Ultra-60 running Solaris 7 with kernel patch 106541-11
> and a patch cluster which contained that kernel patch. The file
> system in question is mounted with the "logging" option. 
> 
> Thanks a lot for any help to fix the problem. As usual I will post
> a summary.
> 
> Jan-Olaf
> 
> df-output:
> 
> bash# df -k /export/raid
> Filesystem            kbytes    used   avail capacity  Mounted on
> /dev/dsk/c2t0d0s6    275823048 261513716 29676700    90%    /export/raid
> 
> Format shows the following:
> 
> partition> print
> Current partition table (original):
> Total disk cylinders available: 35773 + 2 (reserved cylinders)
> 
> Part      Tag    Flag     Cylinders         Size            Blocks
>   0 unassigned    wm       0                0         (0/0/0)             0
>   1 unassigned    wu       0                0         (0/0/0)             0
>   2     backup    wu       0 - 35772      279.48GB    (35773/0/0) 586104832
>   3 unassigned    wm       0                0         (0/0/0)             0
>   4 unassigned    wm       0                0         (0/0/0)             0
>   5 unassigned    wm       0                0         (0/0/0)             0
>   6        usr    wm       0 - 35772      279.48GB    (35773/0/0) 586104832
>   7 unassigned    wm       0                0         (0/0/0)             0
> ===========================================================================
-- 
Jan-Olaf Droese                    | Lahmeyer International GmbH
email: jan-olaf.droese@lahmeyer.de | Friedberger Stra_e 173
phone: +49-6101-55-1611            | 61118 Bad Vilbel
fax:   +49-6101-55-1623            | Germany
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