[gpfsug-discuss] Migration to separate metadata and data disks

[Marc A Kaplan]

I believe the OP left out a step. 

I am not saying this is a good idea, but ...
 One must change the replication factors marked in each inode for each 
file...

This could be done using an mmapplypolicy rule:

RULE 'one' MIGRATE FROM POOL 'yourdatapool' TO POOL 'yourdatapool' 
REPLICATE(1,1)

(repeat rule for each  POOL you have)

Put that (those) rules in a file and do a "one time" run 
like

mmapplypolicy yourfilesystem -P /path/to/rule -N nodelist-to-do-this-work 
-g /filesystem/bigtemp -I defer


Then try your restripe again.






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