Re: [nfsv4] New version of sparse draft (draft-hildebrand-nfsv4-read-sparse-01.txt)

"J. Bruce Fields" <bfields@fieldses.org> Thu, 30 September 2010 17:58 UTC

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Date: Thu, 30 Sep 2010 13:59:27 -0400
To: Dean Hildebrand <seattleplus@gmail.com>
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From: "J. Bruce Fields" <bfields@fieldses.org>
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Subject: Re: [nfsv4] New version of sparse draft (draft-hildebrand-nfsv4-read-sparse-01.txt)
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On Wed, Sep 29, 2010 at 04:41:09PM -0700, Dean Hildebrand wrote:
>  Hello,
> 
> I uploaded a new version of our internet draft "Simple and Efficient
> Read Support for Sparse Files".
> 
> http://www.ietf.org/id/draft-hildebrand-nfsv4-read-sparse-01.txt
> 
> Please have a look and give us any feedback.
> 
> The main changes are:
> 1) Added section regarding pNFS (which basically states that there
> are no real changes to how pNFS works)
> 2) Added example sparse read message flow
> 3) Added statement to the effect that if a client sends a read
> request for a chunk that ends in zeroes, the server can return a
> short read (thanks to Benny)
> 4) I didn't change the return value.  There was a suggestion to use
> a flag instead of overloaded the length parameter, but I'm not sure
> what this gives us (although it might be more clear in the doc)

How will the client take advantage of the data_length field?

--b.