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Re: [h5md-user] attribute modification_time

From: Peter Colberg
Subject: Re: [h5md-user] attribute modification_time
Date: Wed, 29 May 2013 11:46:44 -0400
User-agent: Mutt/1.5.21 (2010-09-15)

On Wed, May 29, 2013 at 05:36:09PM +0200, Felix Höfling wrote:
> Just some examples:
> A user may decide to continue a simulation and to append the results
> to the same file.
> One may want to delete some unneeded data groups after a while (data
> that should not have been written in the first place).

Copy. Always copy.

It is the same rule as with data on a filesystem. When moving large
collections of files, never move file by file, but always copy
everything first, and only then remove the old. With HDF5, the
filesystem becomes the HDF5 file and the files become the groups
and datasets.


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