[gpfsug-discuss] Best way to migrate data : mmfind ... mmxcp

[Sven Oehme]

Marc, 

 

The issue with that is that you need multiple passes and things change in between, it also significant increases migration times. You will always miss something or you need to manually correct. The right thing is to have 1 tool that takes care of both, the bulk transfer and the additional attributes. 

 

Sven

 

 

From: <gpfsug-discuss-bounces at spectrumscale.org> on behalf of Marc A Kaplan <makaplan at us.ibm.com>
Reply-To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date: Monday, October 22, 2018 at 1:09 PM
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Subject: Re: [gpfsug-discuss] Best way to migrate data : mmfind ... mmxcp

 

Rather than hack rsync or cp ... I proposed a smallish utility that would copy those extended attributes and ACLs that cp -a just skips over.
This can be done using the documented GPFS APIs that were designed for backup and restore of files.
SMOP and then add it as an option to samples/ilm/mmxcp

Sorry I haven't gotten around to doing this ... Seems like a modest sized project...  Avoids boiling the ocean and reinventing or hacking rsync.

-- marc K
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