Sorry for any confusion.  MIGRATing a file does NOT change the replication 
factor, unless you explicitly use the keyword REPLICATE.

The default replication factor, as set/displayed by mm[ch|ls]fs -r only 
applies at file creation time, unless overriden by a policy SET POOL ... 
REPLICATE(x) rule.





From:   Stephen Ulmer <[email protected]>
To:     gpfsug main discussion list <[email protected]>
Date:   06/23/2017 01:55 PM
Subject:        Re: [gpfsug-discuss] Replication settings when running 
mmapplypolicy
Sent by:        [email protected]




On Jun 23, 2017, at 12:58 PM, Marc A Kaplan <[email protected]> wrote:

I believe that is correct.  If not, let us know!

To recap...  when running mmapplypolicy with rules like:

... MIGRATE ... REPLICATE(x) ...  

will change the replication factor to x, for each file selected by this 
rule and chosen for execution.

... MIGRATE ...  /* no REPLICATE keyword */

will not mess with the replication factor



I think I detect an impedance mismatch...

By "not mess with the replication factor" do you mean that after the move:
the file will have the default replication factor for the file system
the file will retain a replication factor previously set on the file

You told Kevin that he was correct and I think he meant the first one, but 
I read what you said as the second one.

Liberty,

-- 
Stephen

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