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    SubjectRe: NFS Filesystem Size Limit?
    Thanks for the info!

    On Mon, 18 Dec 2006, Trond Myklebust wrote:

    > On Mon, 2006-12-18 at 14:21 -0500, Justin Piszcz wrote:
    > > I have a question I could not quickly find on Google/mailing lists--
    > >
    > > Say I have some sort of global filesystem or NFS which is 200TB.
    > >
    > > Is there a limit either:
    > >
    > > A) In the Linux kernel
    > > or
    > > B) In the NFS spec
    > >
    > > That would limit the client as to what it could see via NFS or global
    > > filesystem?
    >
    > No.
    >
    > > Or could both 2.4 and 2.6 kernels 'see' the 200TB global filesystem over
    > > NFS or global filesystem?
    >
    > 'df' may or may not report the filesystem size correctly (depends on
    > whether you have VFS support for 64-bit filesystems enabled, and whether
    > or not you are using NFSv3 or above), but you should be able to store
    > 200TB worth or data on it irrespective of that.
    >
    > The one thing that may be limited is the size of individual files. The
    > NFSv2 protocol limits file sizes to 2GB, whereas NFSv3 and v4 should
    > allow you to read and write full 64-bit sized files.
    > Note though, that on most 32-bit hardware, the Linux VM design limits
    > you to 44-bit file sizes (due to the 32-bit page table + 4k page size).
    >
    > Cheers
    > Trond
    >
    -
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