Re: 6Gb of invisible files, or what?

From: Oliver Elphick (olly_at_lfix.co.uk)
Date: 09/14/05

  • Next message: Kai Grossjohann: "Re: setting up environment variables" 
    To: Angelo Bertolli <angelo@freeshell.org>
Date: Wed, 14 Sep 2005 09:18:15 +0100

    On Tue, 2005-09-13 at 11:52 -0400, Angelo Bertolli wrote:
    > Juha Pahkala wrote:
    >
    > > Angelo Bertolli wrote:
    > > No, actually Oliver was 100% correct, I somehow had some dvb
    > > recordings under one of my nfs mount points and they took up the space
    > > that didn't show up using du.
    >
    > Ok, I guess I don't understand why df would report such high disk
    > usage. Does it have something to do with nfs caching data locally or
    > something?

    df reports from the device what space is available and what is used. du
    examines the filesystem. When another filesystem is mounted on a
    mountpoint, the portion of the original filesystem below the mount point
    is concealed by the newly mounted filesystem. The two utilities are
    answering different questions.

    Because of the different ways they work, du cannot answer the question
    "How much space is left?" and df cannot answer the question "How much of
    the used space is visible in the filesystem?" 

    -- 
Oliver Elphick                                          olly@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
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                 ========================================
   Do you want to know God?   http://www.lfix.co.uk/knowing_god.html
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  • Next message: Kai Grossjohann: "Re: setting up environment variables"

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