Do you have more than one GPFS storage pool in the system? If you do and they align with the filesets then that might explain why moving data from one fileset to another is causing increased IO operations.
Fred
__________________________________________________
Fred Stock | IBM Pittsburgh Lab | 720-430-8821
sto...@us.ibm.com
----- Original message -----
From: "J. Eric Wonderley" <eric.wonder...@vt.edu>
Sent by: gpfsug-discuss-boun...@spectrumscale.org
To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org>
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Subject: [EXTERNAL] [gpfsug-discuss] gpfs filesets question
Date: Thu, Apr 16, 2020 12:32 PM
I have filesets setup in a filesystem...looks like:[root@cl005 ~]# mmlsfileset home -L
Filesets in file system 'home':
Name Id RootInode ParentId Created InodeSpace MaxInodes AllocInodes Comment
root 0 3 -- Tue Jun 30 07:54:09 2015 0 402653184 320946176 root fileset
hess 1 543733376 0 Tue Jun 13 14:56:13 2017 0 0 0
predictHPC 2 1171116 0 Thu Jan 5 15:16:56 2017 0 0 0
HYCCSIM 3 544258049 0 Wed Jun 14 10:00:41 2017 0 0 0
socialdet 4 544258050 0 Wed Jun 14 10:01:02 2017 0 0 0
arc 5 1171073 0 Thu Jan 5 15:07:09 2017 0 0 0
arcadm 6 1171074 0 Thu Jan 5 15:07:10 2017 0 0 0I beleive these are dependent filesets. Dependent on the root fileset. Anyhow a user wants to move a large amount of data from one fileset to another. Would this be a metadata only operation? He has attempted to small amount of data and has noticed some thrasing._______________________________________________
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