<div class="socmaildefaultfont" dir="ltr" style="font-family:Arial, Helvetica, sans-serif;font-size:12pt" ><div dir="ltr" >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.</div>
<div dir="ltr" ><div class="socmaildefaultfont" dir="ltr" style="font-family:Arial, Helvetica, sans-serif;font-size:10.5pt" ><div dir="ltr" ><br><font size="2" face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif" ><span style="font-size:1.143em;" >Fred<br>__________________________________________________<br>Fred Stock | IBM Pittsburgh Lab | 720-430-8821<br>stockf@us.ibm.com</span></font></div></div></div>
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<blockquote data-history-content-modified="1" dir="ltr" style="border-left:solid #aaaaaa 2px; margin-left:5px; padding-left:5px; direction:ltr; margin-right:0px" >----- Original message -----<br>From: "J. Eric Wonderley" <eric.wonderley@vt.edu><br>Sent by: gpfsug-discuss-bounces@spectrumscale.org<br>To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org><br>Cc:<br>Subject: [EXTERNAL] [gpfsug-discuss] gpfs filesets question<br>Date: Thu, Apr 16, 2020 12:32 PM<br>
<div dir="ltr" >I have filesets setup in a filesystem...looks like:
<div><div><div data-smartmail="gmail_signature" dir="ltr" ><div dir="ltr" ><div dir="ltr" >[root@cl005 ~]# mmlsfileset home -L<br>Filesets in file system 'home':<br>Name Id RootInode ParentId Created InodeSpace MaxInodes AllocInodes Comment<br>root 0 3 -- Tue Jun 30 07:54:09 2015 0 402653184 320946176 root fileset<br>hess 1 543733376 0 Tue Jun 13 14:56:13 2017 0 0 0<br>predictHPC 2 1171116 0 Thu Jan 5 15:16:56 2017 0 0 0<br>HYCCSIM 3 544258049 0 Wed Jun 14 10:00:41 2017 0 0 0<br>socialdet 4 544258050 0 Wed Jun 14 10:01:02 2017 0 0 0<br>arc 5 1171073 0 Thu Jan 5 15:07:09 2017 0 0 0<br>arcadm 6 1171074 0 Thu Jan 5 15:07:10 2017 0 0 0 </div>
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<div>I 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.</div></div></div></div></div></div>
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