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<h1 id="meg-to-merlin7-migration-guide">Meg to Merlin7 Migration Guide<a class="headerlink" href="#meg-to-merlin7-migration-guide" title="Permanent link"></a></h1>
<p>Welcome to the official documentation for migrating experiment data from <strong>MEG</strong> to <strong>Merlin7</strong>. Please follow the instructions carefully to ensure a smooth and secure transition.</p>
<hr>
<h2 id="directory-structure-changes">Directory Structure Changes<a class="headerlink" href="#directory-structure-changes" title="Permanent link"></a></h2>
<h3 id="meg-vs-merlin6-vs-merlin7">Meg vs Merlin6 vs Merlin7<a class="headerlink" href="#meg-vs-merlin6-vs-merlin7" title="Permanent link"></a></h3>
<table>
<thead>
<tr>
<th>Cluster</th>
<th style="text-align: left;">Home Directory</th>
<th style="text-align: left;">User Data Directory</th>
<th>Experiment data</th>
<th>Additional notes</th>
</tr>
</thead>
<tbody>
<tr>
<td>merlin6</td>
<td style="text-align: left;">/psi/home/<code>$USER</code></td>
<td style="text-align: left;">/data/user/<code>$USER</code></td>
<td>/data/experiments/meg</td>
<td>Symlink /meg</td>
</tr>
<tr>
<td>meg</td>
<td style="text-align: left;">/meg/home/<code>$USER</code></td>
<td style="text-align: left;">N/A</td>
<td>/meg</td>
<td></td>
</tr>
<tr>
<td>merlin7</td>
<td style="text-align: left;">/data/user/<code>$USER</code></td>
<td style="text-align: left;">/data/user/<code>$USER</code></td>
<td>/data/project/meg</td>
<td></td>
</tr>
</tbody>
</table>
<ul>
<li>The <strong>Merlin6 home and user data directores have been merged</strong> into the single new home directory <code>/data/user/$USER</code> on Merlin7.<ul>
<li>This is the same for the home directory in the meg cluster, which has to be merged into <code>/data/user/$USER</code> on Merlin7.</li>
<li>Users are responsible for moving the data.</li>
</ul>
</li>
<li>The <strong>experiment directory has been integrated into <code>/data/project/meg</code></strong>.</li>
</ul>
<h3 id="recommended-cleanup-actions">Recommended Cleanup Actions<a class="headerlink" href="#recommended-cleanup-actions" title="Permanent link"></a></h3>
<ul>
<li>Remove unused files and datasets.</li>
<li>Archive large, inactive data sets.</li>
</ul>
<h3 id="mandatory-actions">Mandatory Actions<a class="headerlink" href="#mandatory-actions" title="Permanent link"></a></h3>
<ul>
<li>Stop activity on Meg and Merlin6 when performing the last rsync.</li>
</ul>
<h2 id="migration-instructions">Migration Instructions<a class="headerlink" href="#migration-instructions" title="Permanent link"></a></h2>
<h3 id="preparation">Preparation<a class="headerlink" href="#preparation" title="Permanent link"></a></h3>
<p>A <code>experiment_migration.setup</code> migration script must be executed from <strong>any MeG node</strong> using the account that will perform the migration.</p>
<h4 id="when-using-the-local-root-account">When using the local <code>root</code> account<a class="headerlink" href="#when-using-the-local-root-account" title="Permanent link"></a></h4>
<ul>
<li>The script <strong>must be executed after every reboot</strong> of the destination nodes.</li>
<li><strong>Reason:</strong> On Merlin7, the home directory for the <code>root</code> user resides on ephemeral storage (no physical disk).</li>
</ul>
<p>After a reboot, this directory is cleaned, so <strong>SSH keys need to be redeployed</strong> before running the migration again.</p>
<h4 id="when-using-a-psi-active-directory-ad-account">When using a PSI Active Directory (AD) account<a class="headerlink" href="#when-using-a-psi-active-directory-ad-account" title="Permanent link"></a></h4>
<ul>
<li>Applicable accounts include, for example:<ul>
<li><code>gac-meg2_data</code></li>
<li><code>gac-meg2</code></li>
</ul>
</li>
<li>The script only needs to be executed <strong>once</strong>, provided that:<ul>
<li>The home directory for the AD account is located on a shared storage area.</li>
<li>This shared storage is accessible from the node executing the transfer.</li>
</ul>
</li>
<li><strong>Reason:</strong> On Merlin7, these accounts have their home directories on persistent shared storage, so the SSH keys remain available across reboots.</li>
</ul>
<p>To run it:</p>
<div class="language-bash highlight"><span class="filename">Bash</span><pre><span></span><code><span id="__span-0-1"><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a>experiment_migration.setup
</span></code></pre></div>
<p>This script will:</p>
<ul>
<li>Check that you have an account on Merlin7.</li>
<li>Configure and check that your environment is ready for transferring files via Slurm job.</li>
</ul>
<p>If there are issues, the script will:</p>
<ul>
<li>Print clear diagnostic output</li>
<li>Give you some hints to resolve the issue</li>
</ul>
<p>If you are stuck, email: <a href="mailto:merlin-admins@lists.psi.ch">merlin-admins@lists.psi.ch</a>/<a href="mailto:meg-admins@lists.psi.ch">meg-admins@lists.psi.ch</a></p>
<h3 id="migration-procedure">Migration Procedure<a class="headerlink" href="#migration-procedure" title="Permanent link"></a></h3>
<ol>
<li>
<p><strong>Run an initial sync</strong>, ideally within a <code>tmux</code> session</p>
<ul>
<li>This copies the bulk of the data from MeG to Merlin7.</li>
<li><strong>IMPORTANT: Do not modify the destination directories</strong></li>
<li>Please, before starting the transfer ensure that:<ul>
<li>The source and destination directories are correct.</li>
<li>The destination directories exist.</li>
</ul>
</li>
</ul>
</li>
<li>
<p><strong>Run additional syncs if needed</strong></p>
<ul>
<li>Subsequent syncs can be executed to transfer changes.</li>
<li>Ensure that <strong>only one sync for the same directory runs at a time</strong>.</li>
<li>Multiple syncs are often required since the first one may take several hours or even days.</li>
</ul>
</li>
<li>
<p>Schedule a date for the final migration:</p>
<ul>
<li>Any activity must be stopped on the source directory.</li>
<li>In the same way, no activity must be done on the destination until the migration is complete.</li>
</ul>
</li>
<li>
<p><strong>Perform a final sync with the <code>-E</code> option</strong> (if it applies)</p>
<ul>
<li>Use <code>-E</code> <strong>only if you need to delete files on the destination that were removed from the source.</strong></li>
<li>This ensures the destination becomes an exact mirror of the source.</li>
<li><strong>Never use <code>-E</code> after the destination has gone into production</strong>, as it will delete new data created there.</li>
</ul>
</li>
<li>
<p>Disable access on the source folder.</p>
</li>
<li>Enable access on the destination folder.<ul>
<li>At this point, <strong>no new syncs have to be performed.</strong></li>
</ul>
</li>
</ol>
<div class="admonition note">
<p class="admonition-title">Important</p>
<p>The <code>-E</code> option is destructive; handle with care.
Always verify that the destination is ready before triggering the final sync.
For optimal performance, use up to 12 threads with the -t option.</p>
</div>
<h4 id="running-the-migration-script">Running The Migration Script<a class="headerlink" href="#running-the-migration-script" title="Permanent link"></a></h4>
<p>The migration script is installed on the <code>meg-s-001</code> server at:
<code>/usr/local/bin/experiment_migration.bash</code></p>
<p>This script is primarily a <strong>wrapper</strong> around <code>fpsync</code>, providing additional logic for synchronizing MeG experiment data.</p>
<div class="language-bash highlight"><span class="filename">Bash</span><pre><span></span><code><span id="__span-1-1"><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a><span class="o">[</span>root@meg-s-001<span class="w"> </span>~<span class="o">]</span><span class="c1"># experiment_migration.bash --help</span>
</span><span id="__span-1-2"><a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a>Usage:<span class="w"> </span>/usr/local/bin/experiment_migration.bash<span class="w"> </span><span class="o">[</span>options<span class="o">]</span><span class="w"> </span>-p<span class="w"> </span>&lt;project_name&gt;
</span><span id="__span-1-3"><a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a>
</span><span id="__span-1-4"><a id="__codelineno-1-4" name="__codelineno-1-4" href="#__codelineno-1-4"></a>Options:
</span><span id="__span-1-5"><a id="__codelineno-1-5" name="__codelineno-1-5" href="#__codelineno-1-5"></a><span class="w"> </span>-t<span class="w"> </span><span class="p">|</span><span class="w"> </span>--threads<span class="w"> </span>N<span class="w"> </span>Number<span class="w"> </span>of<span class="w"> </span>parallel<span class="w"> </span>threads<span class="w"> </span><span class="o">(</span>default:<span class="w"> </span><span class="m">10</span><span class="o">)</span>.<span class="w"> </span>Recommended<span class="w"> </span><span class="m">12</span><span class="w"> </span>as<span class="w"> </span>max.
</span><span id="__span-1-6"><a id="__codelineno-1-6" name="__codelineno-1-6" href="#__codelineno-1-6"></a><span class="w"> </span>-b<span class="w"> </span><span class="p">|</span><span class="w"> </span>--experiment-src-basedir<span class="w"> </span>DIR<span class="w"> </span>Experiment<span class="w"> </span>base<span class="w"> </span>directory<span class="w"> </span><span class="o">(</span>default:<span class="w"> </span>/meg<span class="o">)</span>
</span><span id="__span-1-7"><a id="__codelineno-1-7" name="__codelineno-1-7" href="#__codelineno-1-7"></a><span class="w"> </span>-S<span class="w"> </span><span class="p">|</span><span class="w"> </span>--space-source<span class="w"> </span>SPACE<span class="w"> </span>Source<span class="w"> </span>project<span class="w"> </span>space<span class="w"> </span>name<span class="w"> </span><span class="o">(</span>default:<span class="w"> </span>data1<span class="o">)</span>
</span><span id="__span-1-8"><a id="__codelineno-1-8" name="__codelineno-1-8" href="#__codelineno-1-8"></a><span class="w"> </span>-B<span class="w"> </span><span class="p">|</span><span class="w"> </span>--experiment-dst-basedir<span class="w"> </span>DIR<span class="w"> </span>Experiment<span class="w"> </span>base<span class="w"> </span>directory<span class="w"> </span><span class="o">(</span>default:<span class="w"> </span>/data/project/meg<span class="o">)</span>
</span><span id="__span-1-9"><a id="__codelineno-1-9" name="__codelineno-1-9" href="#__codelineno-1-9"></a><span class="w"> </span>-D<span class="w"> </span><span class="p">|</span><span class="w"> </span>--space-destination<span class="w"> </span>SPACE<span class="w"> </span>Destination<span class="w"> </span>project<span class="w"> </span>space<span class="w"> </span>name<span class="w"> </span><span class="o">(</span>default:<span class="w"> </span>data1<span class="o">)</span>
</span><span id="__span-1-10"><a id="__codelineno-1-10" name="__codelineno-1-10" href="#__codelineno-1-10"></a><span class="w"> </span>-p<span class="w"> </span><span class="p">|</span><span class="w"> </span>--project-name<span class="w"> </span>PRJ_NAME<span class="w"> </span>Mantadory<span class="w"> </span>field.<span class="w"> </span>MeG<span class="w"> </span>project<span class="w"> </span>name.<span class="w"> </span>Examples:
</span><span id="__span-1-11"><a id="__codelineno-1-11" name="__codelineno-1-11" href="#__codelineno-1-11"></a><span class="w"> </span>-<span class="w"> </span><span class="s1">'online'</span>
</span><span id="__span-1-12"><a id="__codelineno-1-12" name="__codelineno-1-12" href="#__codelineno-1-12"></a><span class="w"> </span>-<span class="w"> </span><span class="s1">'offline'</span>
</span><span id="__span-1-13"><a id="__codelineno-1-13" name="__codelineno-1-13" href="#__codelineno-1-13"></a><span class="w"> </span>-<span class="w"> </span><span class="s1">'shared'</span>
</span><span id="__span-1-14"><a id="__codelineno-1-14" name="__codelineno-1-14" href="#__codelineno-1-14"></a><span class="w"> </span>-F<span class="w"> </span><span class="p">|</span><span class="w"> </span>--force-destination-mkdir<span class="w"> </span>Create<span class="w"> </span>the<span class="w"> </span>destination<span class="w"> </span>parent<span class="w"> </span>directory<span class="w"> </span><span class="o">(</span>default:<span class="w"> </span><span class="nb">false</span><span class="o">)</span>
</span><span id="__span-1-15"><a id="__codelineno-1-15" name="__codelineno-1-15" href="#__codelineno-1-15"></a><span class="w"> </span>Example:<span class="w"> </span>mkdir<span class="w"> </span>-p<span class="w"> </span><span class="k">$(</span>dirname<span class="w"> </span>/data/project/meg/data1/PROJECT_NAME<span class="k">)</span>
</span><span id="__span-1-16"><a id="__codelineno-1-16" name="__codelineno-1-16" href="#__codelineno-1-16"></a><span class="w"> </span>Result:<span class="w"> </span>mkdir<span class="w"> </span>-p<span class="w"> </span>/data/project/meg/data1
</span><span id="__span-1-17"><a id="__codelineno-1-17" name="__codelineno-1-17" href="#__codelineno-1-17"></a><span class="w"> </span>-s<span class="w"> </span><span class="p">|</span><span class="w"> </span>--split<span class="w"> </span>N<span class="w"> </span>Number<span class="w"> </span>of<span class="w"> </span>files<span class="w"> </span>per<span class="w"> </span>split<span class="w"> </span><span class="o">(</span>default:<span class="w"> </span><span class="m">20000</span><span class="o">)</span>
</span><span id="__span-1-18"><a id="__codelineno-1-18" name="__codelineno-1-18" href="#__codelineno-1-18"></a><span class="w"> </span>-f<span class="w"> </span><span class="p">|</span><span class="w"> </span>--filesize<span class="w"> </span>SIZE<span class="w"> </span>File<span class="w"> </span>size<span class="w"> </span>threshold<span class="w"> </span><span class="o">(</span>default:<span class="w"> </span>100G<span class="o">)</span>
</span><span id="__span-1-19"><a id="__codelineno-1-19" name="__codelineno-1-19" href="#__codelineno-1-19"></a><span class="w"> </span>-r<span class="w"> </span><span class="p">|</span><span class="w"> </span>--runid<span class="w"> </span>ID<span class="w"> </span>Reuse<span class="w"> </span>an<span class="w"> </span>existing<span class="w"> </span>runid<span class="w"> </span>session
</span><span id="__span-1-20"><a id="__codelineno-1-20" name="__codelineno-1-20" href="#__codelineno-1-20"></a><span class="w"> </span>-l<span class="w"> </span><span class="p">|</span><span class="w"> </span>--list-runids<span class="w"> </span>List<span class="w"> </span>available<span class="w"> </span>runid<span class="w"> </span>sessions<span class="w"> </span>and<span class="w"> </span><span class="nb">exit</span>
</span><span id="__span-1-21"><a id="__codelineno-1-21" name="__codelineno-1-21" href="#__codelineno-1-21"></a><span class="w"> </span>-x<span class="w"> </span><span class="p">|</span><span class="w"> </span>--delete-runid<span class="w"> </span>Delete<span class="w"> </span>runid.<span class="w"> </span>Requires:<span class="w"> </span>-r<span class="w"> </span><span class="p">|</span><span class="w"> </span>--runid<span class="w"> </span>ID
</span><span id="__span-1-22"><a id="__codelineno-1-22" name="__codelineno-1-22" href="#__codelineno-1-22"></a><span class="w"> </span>-E<span class="w"> </span><span class="p">|</span><span class="w"> </span>--rsync-delete-option<span class="w"> </span><span class="o">[</span>WARNING<span class="o">]</span><span class="w"> </span>Use<span class="w"> </span>this<span class="w"> </span>to<span class="w"> </span>delete<span class="w"> </span>files<span class="w"> </span><span class="k">in</span><span class="w"> </span>the<span class="w"> </span>destination
</span><span id="__span-1-23"><a id="__codelineno-1-23" name="__codelineno-1-23" href="#__codelineno-1-23"></a><span class="w"> </span>which<span class="w"> </span>are<span class="w"> </span>not<span class="w"> </span>present<span class="w"> </span><span class="k">in</span><span class="w"> </span>the<span class="w"> </span><span class="nb">source</span><span class="w"> </span>any<span class="w"> </span>more.
</span><span id="__span-1-24"><a id="__codelineno-1-24" name="__codelineno-1-24" href="#__codelineno-1-24"></a><span class="w"> </span><span class="o">[</span>WARNING<span class="o">]</span><span class="w"> </span>USE<span class="w"> </span>THIS<span class="w"> </span>OPTION<span class="w"> </span>CAREFULLY!
</span><span id="__span-1-25"><a id="__codelineno-1-25" name="__codelineno-1-25" href="#__codelineno-1-25"></a><span class="w"> </span>Typically<span class="w"> </span>used<span class="w"> </span><span class="k">in</span><span class="w"> </span>last<span class="w"> </span>rsync<span class="w"> </span>to<span class="w"> </span>have<span class="w"> </span>an<span class="w"> </span>exact
</span><span id="__span-1-26"><a id="__codelineno-1-26" name="__codelineno-1-26" href="#__codelineno-1-26"></a><span class="w"> </span>mirror<span class="w"> </span>of<span class="w"> </span>the<span class="w"> </span><span class="nb">source</span><span class="w"> </span>directory.
</span><span id="__span-1-27"><a id="__codelineno-1-27" name="__codelineno-1-27" href="#__codelineno-1-27"></a><span class="w"> </span><span class="o">[</span>WARNING<span class="o">]</span><span class="w"> </span>Some<span class="w"> </span>files<span class="w"> </span><span class="k">in</span><span class="w"> </span>destination<span class="w"> </span>might<span class="w"> </span>be<span class="w"> </span>deleted!
</span><span id="__span-1-28"><a id="__codelineno-1-28" name="__codelineno-1-28" href="#__codelineno-1-28"></a><span class="w"> </span>Use<span class="w"> </span><span class="s1">'man fpsync'</span><span class="w"> </span><span class="k">for</span><span class="w"> </span>more<span class="w"> </span>information.
</span><span id="__span-1-29"><a id="__codelineno-1-29" name="__codelineno-1-29" href="#__codelineno-1-29"></a>
</span><span id="__span-1-30"><a id="__codelineno-1-30" name="__codelineno-1-30" href="#__codelineno-1-30"></a><span class="w"> </span>-h<span class="w"> </span><span class="p">|</span><span class="w"> </span>--help<span class="w"> </span>Show<span class="w"> </span>this<span class="w"> </span><span class="nb">help</span><span class="w"> </span>message
</span><span id="__span-1-31"><a id="__codelineno-1-31" name="__codelineno-1-31" href="#__codelineno-1-31"></a><span class="w"> </span>-v<span class="w"> </span><span class="p">|</span><span class="w"> </span>--verbose<span class="w"> </span>Run<span class="w"> </span>fpsync<span class="w"> </span>with<span class="w"> </span>-v<span class="w"> </span>option
</span></code></pre></div>
<div class="admonition tip">
<p class="admonition-title">Tip</p>
<p>Defaults can be updated if necessary.</p>
</div>
<h4 id="migration-examples">Migration examples<a class="headerlink" href="#migration-examples" title="Permanent link"></a></h4>
<h5 id="example-migrating-the-entire-online-directory">Example: Migrating the Entire <code>online</code> Directory<a class="headerlink" href="#example-migrating-the-entire-online-directory" title="Permanent link"></a></h5>
<p>The following example demonstrates how to migrate the <strong>entire <code>online</code></strong> directory.</p>
<div class="admonition tip">
<p class="admonition-title">Tip</p>
<p>You may also choose to migrate only specific subdirectories if needed.
However, migrating full directories is generally <strong>simpler</strong> and <strong>less
error-prone</strong> compared to handling multiple subdirectory migrations.</p>
</div>
<div class="language-bash highlight"><span class="filename">Bash</span><pre><span></span><code><span id="__span-2-1"><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a><span class="o">[</span>root@meg-s-001<span class="w"> </span>~<span class="o">]</span><span class="c1"># experiment_migration.bash -S data1 -D data1 -p "online"</span>
</span><span id="__span-2-2"><a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a>🔄<span class="w"> </span>Transferring<span class="w"> </span>project:
</span><span id="__span-2-3"><a id="__codelineno-2-3" name="__codelineno-2-3" href="#__codelineno-2-3"></a><span class="w"> </span>From:<span class="w"> </span>/meg/data1/online
</span><span id="__span-2-4"><a id="__codelineno-2-4" name="__codelineno-2-4" href="#__codelineno-2-4"></a><span class="w"> </span>To:<span class="w"> </span>login001.merlin7.psi.ch:/data/project/meg/data1/online
</span><span id="__span-2-5"><a id="__codelineno-2-5" name="__codelineno-2-5" href="#__codelineno-2-5"></a><span class="w"> </span>Threads:<span class="w"> </span><span class="m">10</span><span class="w"> </span><span class="p">|</span><span class="w"> </span>Split:<span class="w"> </span><span class="m">20000</span><span class="w"> </span>files<span class="w"> </span><span class="p">|</span><span class="w"> </span>Max<span class="w"> </span>size:<span class="w"> </span>100G
</span><span id="__span-2-6"><a id="__codelineno-2-6" name="__codelineno-2-6" href="#__codelineno-2-6"></a><span class="w"> </span>RunID:
</span><span id="__span-2-7"><a id="__codelineno-2-7" name="__codelineno-2-7" href="#__codelineno-2-7"></a>
</span><span id="__span-2-8"><a id="__codelineno-2-8" name="__codelineno-2-8" href="#__codelineno-2-8"></a>Please<span class="w"> </span>confirm<span class="w"> </span>to<span class="w"> </span>start<span class="w"> </span><span class="o">(</span>y/N<span class="o">)</span>:
</span><span id="__span-2-9"><a id="__codelineno-2-9" name="__codelineno-2-9" href="#__codelineno-2-9"></a>❌<span class="w"> </span>Transfer<span class="w"> </span>cancelled<span class="w"> </span>by<span class="w"> </span>user.
</span></code></pre></div>
<h5 id="example-migrating-a-specific-subdirectory">Example: Migrating a Specific Subdirectory<a class="headerlink" href="#example-migrating-a-specific-subdirectory" title="Permanent link"></a></h5>
<p>The following example demonstrates how to migrate <strong>only a subdirectory</strong>. In this case, we use the option <code>-F</code> to create the parent directory in the destination, to ensure that this exists before transferring:</p>
<p>⚠️ <strong>Important:</strong></p>
<ul>
<li>When migrating a subdirectory, <strong>do not</strong> run concurrent migrations on its parent directories.</li>
<li>For example, avoid running migrations with <code>-p "shared"</code> while simultaneously migrating <code>-p "shared/subprojects"</code>.</li>
</ul>
<div class="language-bash highlight"><span class="filename">Bash</span><pre><span></span><code><span id="__span-3-1"><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a><span class="o">[</span>root@meg-s-001<span class="w"> </span>~<span class="o">]</span><span class="c1"># experiment_migration.bash -p "shared/subprojects/meg1" -F</span>
</span><span id="__span-3-2"><a id="__codelineno-3-2" name="__codelineno-3-2" href="#__codelineno-3-2"></a>🔄<span class="w"> </span>Transferring<span class="w"> </span>project:
</span><span id="__span-3-3"><a id="__codelineno-3-3" name="__codelineno-3-3" href="#__codelineno-3-3"></a><span class="w"> </span>From:<span class="w"> </span>/meg/data1/shared/subprojects/meg1
</span><span id="__span-3-4"><a id="__codelineno-3-4" name="__codelineno-3-4" href="#__codelineno-3-4"></a><span class="w"> </span>To:<span class="w"> </span>login002.merlin7.psi.ch:/data/project/meg/data1/shared/subprojects/meg1
</span><span id="__span-3-5"><a id="__codelineno-3-5" name="__codelineno-3-5" href="#__codelineno-3-5"></a><span class="w"> </span>Threads:<span class="w"> </span><span class="m">10</span><span class="w"> </span><span class="p">|</span><span class="w"> </span>Split:<span class="w"> </span><span class="m">20000</span><span class="w"> </span>files<span class="w"> </span><span class="p">|</span><span class="w"> </span>Max<span class="w"> </span>size:<span class="w"> </span>100G
</span><span id="__span-3-6"><a id="__codelineno-3-6" name="__codelineno-3-6" href="#__codelineno-3-6"></a><span class="w"> </span>RunID:
</span><span id="__span-3-7"><a id="__codelineno-3-7" name="__codelineno-3-7" href="#__codelineno-3-7"></a>
</span><span id="__span-3-8"><a id="__codelineno-3-8" name="__codelineno-3-8" href="#__codelineno-3-8"></a>Please<span class="w"> </span>confirm<span class="w"> </span>to<span class="w"> </span>start<span class="w"> </span><span class="o">(</span>y/N<span class="o">)</span>:<span class="w"> </span>N
</span><span id="__span-3-9"><a id="__codelineno-3-9" name="__codelineno-3-9" href="#__codelineno-3-9"></a>❌<span class="w"> </span>Transfer<span class="w"> </span>cancelled<span class="w"> </span>by<span class="w"> </span>user.
</span></code></pre></div>
<p>This command initiates the migration of the directory, by creating the destination parant directory (<code>-F</code> option):</p>
<ul>
<li>Creates the destination directory as follows:</li>
</ul>
<div class="language-bash highlight"><span class="filename">Bash</span><pre><span></span><code><span id="__span-4-1"><a id="__codelineno-4-1" name="__codelineno-4-1" href="#__codelineno-4-1"></a>ssh<span class="w"> </span>login002.merlin.psi.ch<span class="w"> </span>mkdir<span class="w"> </span>-p<span class="w"> </span>/data/project/meg/data1/shared/subprojects
</span></code></pre></div>
<ul>
<li>Runs FPSYNC with 10 threads and N parts of max 20000 files or 100G files:<ul>
<li>Source: <code>/meg/data1/shared/subprojects/meg1</code></li>
<li>Destination: <code>login002.merlin7.psi.ch:/data/project/meg/data1/shared/subprojects/meg1</code></li>
</ul>
</li>
</ul>
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