Re: bin/19635: add -c for grand total to df(1), like du(1)does

[Brad Knowles]

At 12:41 PM +0200 2000/7/6, Sheldon Hearn wrote:

>  Filesystem              Size   Used  Avail Capacity  Mounted on
>  mfs:26                   87M    11K    80M     0%    /tmp
>  /dev/ad0s1f             1.2G   934M   241M    80%    /usr
>  /dev/ad0s1e             193M    92M    86M    52%    /var
>  /dev/ccd0c              1.8G   786M   900M    47%    /a
>  /dev/ad1s1e             1.3G   728M   474M    61%    /b
>  procfs                  4.0K   4.0K     0B   100%    /proc
>  rodent.ops:/home/ncvs   3.4G   3.1G    36M    99%    /usr/home/ncvs
>
>  In particular, I can't believe that 87M - 11K == 80M (I'd expect 86M or
>  87M).  Nor is it credible that 1.8G - 786 == 900M (I'd expect 1057M or
>  1G).

        You're ignoring the fact that "Size" is the total physical size 
of the device, while "Used", "Avail", and "Capacity" take into 
account the 10% (or whatever) overhead that is typically left 
unallocated for performance reasons.

        Thus, when "Capacity" shows that ~110% is used, and "Used" == 
"Size", then you are really and truly completely full on that device.

--
   These are my opinions -- not to be taken as official Skynet policy
======================================================================
Brad Knowles, <[EMAIL PROTECTED]>                || Belgacom Skynet SA/NV
Systems Architect, Mail/News/FTP/Proxy Admin || Rue Colonel Bourg, 124
Phone/Fax: +32-2-706.13.11/12.49             || B-1140 Brussels
http://www.skynet.be                         || Belgium


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