Re: newfs limits? 10TB filesystem max?

From: Claus Guttesen (cguttesen_at_yahoo.dk)
Date: 02/16/05

  • Next message: Don Lewis: "Re: where did all my memory go?" 
    Date: Wed, 16 Feb 2005 22:53:25 +0100 (CET)
To: Eric Anderson <anderson@centtech.com>, FreeBSD Current <freebsd-current@freebsd.org>

    > I've just built an enormous 10TB filesystem. When
    > trying to newfs the disk, it bombed with something
    > like "cannot allocate memory" after something like
    > 23xxxxxxxxx sectors.. I noticed disklabel complains
    > about disks with more than 2^32-1 sectors not being
    > supported..

    Aren't you supposed to use gpt(8) to define partitions
    larger than 2 TB?

    > Is newfs supposed to be able to work? I've used the
    > -s option to newfs to limit my filesystem size to
    > the max it would allow, which ends up being
    > 11350482546 1K blocks, which means I'm only losing a
    > couple GB, which is no sweat right now for me, but
    > if someone wanted a 20TB filesystem, they'd be
    > hosed.

    Then the question is whether newfs reads
    gpt-partitioned disks? From newfs(8):

    Before running newfs the disk must be labeled using
    bsdlabel(8).

    How did you create such a huge partition? Your
    question is quite interesting, I'm at a
    storage-solution which supports LUN's larger than 2.2
    TB.

    regards
    Claus

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  • Next message: Don Lewis: "Re: where did all my memory go?"

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