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I have a cluster with two filesystems and I need to migrate a fileset from one to the other.</div>
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I would normally do this with tar and rsync but I decided to experiment with AFM following</div>
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the document below. In my test setup I'm finding that hardlinks are not preserved by the migration.</div>
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Is that expected or am I doing something wrong?</div>
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I'm using gpfs-5.0.5.4.</div>
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Thanks.</div>
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--Mike<br>
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<div>--<br>
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<div>Michael J. Dugan<br>
Manager of Systems Programming and Administration<br>
Research Computing Services | IS&T | Boston University<br>
617-358-0030<br>
dugan@bu.edu<br>
http://www.bu.edu/tech<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> gpfsug-discuss-bounces@spectrumscale.org <gpfsug-discuss-bounces@spectrumscale.org> on behalf of Venkateswara R Puvvada <vpuvvada@in.ibm.com><br>
<b>Sent:</b> Monday, November 23, 2020 9:41 PM<br>
<b>To:</b> gpfsug main discussion list <gpfsug-discuss@spectrumscale.org><br>
<b>Cc:</b> gpfsug-discuss-bounces@spectrumscale.org <gpfsug-discuss-bounces@spectrumscale.org><br>
<b>Subject:</b> Re: [gpfsug-discuss] Migrate/syncronize data from Isilon to Scale over NFS?</font>
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<div><font size="2" face="sans-serif">AFM provides near zero downtime for migration. As of today, AFM migration does not support ACLs or other EAs migration from non scale (GPFS) source.</font><br>
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<a href="https://www.ibm.com/support/knowledgecenter/STXKQY_5.1.0/com.ibm.spectrum.scale.v5r10.doc/bl1ins_uc_migrationusingafmmigrationenhancements.htm"><font size="2" face="sans-serif" color="blue">https://www.ibm.com/support/knowledgecenter/STXKQY_5.1.0/com.ibm.spectrum.scale.v5r10.doc/bl1ins_uc_migrationusingafmmigrationenhancements.htm</font></a><br>
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<font size="2" face="sans-serif">~Venkat (vpuvvada@in.ibm.com)</font><br>
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<font size="1" face="sans-serif" color="#5f5f5f">From: </font><font size="1" face="sans-serif">"Frederick Stock" <stockf@us.ibm.com></font><br>
<font size="1" face="sans-serif" color="#5f5f5f">To: </font><font size="1" face="sans-serif">gpfsug-discuss@spectrumscale.org</font><br>
<font size="1" face="sans-serif" color="#5f5f5f">Cc: </font><font size="1" face="sans-serif">gpfsug-discuss@spectrumscale.org</font><br>
<font size="1" face="sans-serif" color="#5f5f5f">Date: </font><font size="1" face="sans-serif">11/17/2020 03:14 AM</font><br>
<font size="1" face="sans-serif" color="#5f5f5f">Subject: </font><font size="1" face="sans-serif">[EXTERNAL] Re: [gpfsug-discuss] Migrate/syncronize data from Isilon to Scale over NFS?</font><br>
<font size="1" face="sans-serif" color="#5f5f5f">Sent by: </font><font size="1" face="sans-serif">gpfsug-discuss-bounces@spectrumscale.org</font><br>
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<font size="3" face="Arial">Have you considered using the AFM feature of Spectrum Scale? I doubt it will provide any speed improvement but it would allow for data to be accessed as it was being migrated.</font><br>
<font size="2" face="sans-serif"><br>
Fred<br>
__________________________________________________<br>
Fred Stock | IBM Pittsburgh Lab | 720-430-8821<br>
stockf@us.ibm.com</font><br>
<font size="3" face="Arial"> </font><br>
<font size="3" face="Arial"> </font><br>
<font size="3" face="Arial">----- Original message -----<br>
From: Andi Christiansen <andi@christiansen.xxx><br>
Sent by: gpfsug-discuss-bounces@spectrumscale.org<br>
To: "gpfsug-discuss@spectrumscale.org" <gpfsug-discuss@spectrumscale.org><br>
Cc:<br>
Subject: [EXTERNAL] [gpfsug-discuss] Migrate/syncronize data from Isilon to Scale over NFS?<br>
Date: Mon, Nov 16, 2020 2:44 PM<br>
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<font size="3" face="Arial">Hi all,</font><br>
<font size="3" face="Arial"> </font><br>
<font size="3" face="Arial">i have got a case where a customer wants 700TB migrated from isilon to Scale and the only way for him is exporting the same directory on NFS from two different nodes...</font><br>
<font size="3" face="Arial"> </font><br>
<font size="3" face="Arial">as of now we are using multiple rsync processes on different parts of folders within the main directory. this is really slow and will take forever.. right now 14 rsync processes spread across 3 nodes fetching from 2..
</font><br>
<font size="3" face="Arial"> </font><br>
<font size="3" face="Arial">does anyone know of a way to speed it up? right now we see from 1Gbit to 3Gbit if we are lucky(total bandwidth) and there is a total of 30Gbit from scale nodes and 20Gbits from isilon so we should be able to reach just under 20Gbit...</font><br>
<font size="3" face="Arial"> </font><br>
<font size="3" face="Arial"> </font><br>
<font size="3" face="Arial">if anyone have any ideas they are welcome! <br>
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Thanks in advance </font><br>
<font size="3" face="Arial">Andi Christiansen</font><br>
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