[gpfsug-discuss] gpfsug-discuss mmxcp

[Marc A Kaplan]

Basically yes. If you can't find the scripts in 4.2 samples... You can 
copy them over from 5.x to the 4.2 system...  Should work except perhaps 
for some of the more esoteric find conditionals...



From:   "Edward Boyd" <eboyd at us.ibm.com>
To:     gpfsug-discuss at spectrumscale.org
Date:   03/06/2019 10:42 AM
Subject:        Re: [gpfsug-discuss] gpfsug-discuss mmxcp
Sent by:        gpfsug-discuss-bounces at spectrumscale.org



Curious if this command would be suitable for migration from Scale 4.2 
file system to 5.x file system?  What is lost or left behind?

Edward L. Boyd ( Ed ), Client Technical Specialist
IBM Systems Storage Solutions
US Federal
407-271-9210 Office / Cell / Office / Text
eboyd at us.ibm.com email

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Today's Topics:

   1. Re: Migrating billions of files? mmfind ... mmxcp (Marc A Kaplan)


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Message: 1
Date: Wed, 6 Mar 2019 10:01:57 -0500
From: "Marc A Kaplan" <makaplan at us.ibm.com>
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Cc: gpfsug-discuss-bounces at spectrumscale.org
Subject: Re: [gpfsug-discuss] Migrating billions of files? mmfind ...
mmxcp
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mmxcp may be in samples/ilm  if not, perhaps we can put it on an approved 
file sharing service ...


   + mmxcp script, for use with mmfind ... -xargs mmxcp ...
      Which makes parallelized file copy relatively easy and super fast!

Usage: /gh/bin/mmxcp -t target -p strip_count source_pathname1 
source_pathname2 ...

 Run "cp" in a  mmfind ... -xarg ... pipeline, e.g.

  mmfind -polFlags '-N all -g /gpfs/tmp' /gpfs/source -gpfsWeight 
DIRECTORY_HASH -xargs mmxcp -t /target -p 2

 Options:
  -t target_path : Copy files to this path.
  -p strip_count : Remove this many directory names from the pathnames of 
the source files.
  -a  : pass -a to cp
  -v  : pass -v to cp




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