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<a class="WebWorks_Breadcrumb_Link" href="Config_Units.6.1.html#1112868">Configuring Units</a> &gt; <a class="WebWorks_Breadcrumb_Link" href="Config_Units.6.16.html#1112868">Changing An Existing Configuration by Migrating</a> &gt; Informing the Operating System of Changed Configuration</div>
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<div class="Heading2"><a name="1112868">Informing the Operating System of Changed </a>Configuration</div>
<div class="BodyAfterHead"><a name="1112869">After you change the configuration of a unit, you must inform the operating </a>system of the change, and you may need to re-partition the unit. </div>
<div class="Body"><a name="2330614">The easiest way to see the change in capacity is to reboot the system. If you </a>are not booted from the unit be sure the unit is not mounted and not in use. You should follow the specific operating system guide on how to unmount the volume. Then use 3DM2 or CLI to remove the unit. Then rescan so the operating system can recognize the new capacity.</div>
<div class="Body"><a name="1109850">In addition, in order to use the new capacity, you need to either resize the </a>existing partition or add a new partition.</div>
<div class="ToDo"><a name="1109793">To inform the operating system that a unit has been changed</a></div>
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<div class="NumberedFirst_inner"><a name="2172874">If the unit you reconfigured is the boot unit, restart the system and skip to </a>Step 3. </div>
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<div class="Indent"><a name="2172875">If the unit you reconfigured is secondary storage, unmount the file system </a>from the unit.</div>
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<div class="Bullet2_inner"><a name="2349705">Under </a><span style="font-weight: bold;">FreeBSD</span>, from a command prompt, type <span class="code-char">sync</span> &lt;enter&gt;, <span class="code-char">sync</span> &lt;enter&gt;, <span class="code-char">sync</span> &lt;enter&gt;.</div>
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<div class="Indent2"><a name="2349422">You can then unmount the unit with this command: </a><span class="code-char">umount</span> <span class="code-char">&lt;mount </span><span class="code-char">location&gt;</span></div>
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<div class="Bullet2_inner"><a name="2349411">Under </a><span style="font-weight: bold;">Linux</span>, from a command prompt, type <span class="code-char">sync</span> &lt;enter&gt;, <span class="code-char">sync</span> &lt;enter&gt;, <span class="code-char">sync</span> &lt;enter&gt;.</div>
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<div class="Indent2"><a name="2349429">You can then unmount the unit with this command: </a><span class="code-char">umount</span> <span class="code-char">&lt;mount </span><span class="code-char">location&gt;</span></div>
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<div class="Bullet2_inner"><a name="2349405">Under </a><span style="font-weight: bold;">Mac OS</span>, Unmount the file system from the unit.</div>
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<div class="Indent2"><a name="2338950">Launch the Macintosh Disk Utility, select the unit, and click the </a>Unmount button the toolbar, or select the icon for the unit on the desktop and drag it to the trash. </div>
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<div class="Bullet2_inner"><a name="2349583">Under </a><span style="font-weight: bold;">OpenSolaris</span>, Please consult your system documentation and the LSI KnowledgeBase for more information.</div>
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<div class="Bullet2_inner"><a name="2353170">Under </a><span style="font-weight: bold;">VMware</span>, Please consult your system documentation and the LSI KnowledgeBase for more information.</div>
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<div class="Bullet2_inner"><a name="2353091">Under </a><span style="font-weight: bold;">Windows</span>, go to <span class="UI-Element">Start &gt;&gt; Administrative Tools &gt;&gt; Computer </span><span class="UI-Element">Management</span>, and select <span class="UI-Element">Disk Management.</span> Remove the logical drive letter for the unit.</div>
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<div class="Numbered_inner"><a name="2018956">In the software, remove and rescan the controller, in order to update unit </a>information.</div>
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<div class="Lettered_inner"><a name="1109808">In 3DM2 choose </a><span class="UI-Element">Management &gt;&gt; Maintenance </span>and select the appropriate unit.</div>
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<div class="Lettered_inner"><a name="1352777">Click the </a><span class="UI-Element">Remove Unit </span>button. </div>
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<div class="Lettered_inner"><a name="1109809">After the unit has been removed, click the </a><span class="UI-Element">Rescan</span> button. The new unit capacity displays.</div>
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<div class="Numbered_inner"><a name="2353368">Resize the partition and file system or create a new partition. </a></div>
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<div class="Indent"><a name="2354447">Under </a><span style="font-weight: bold;">Windows</span>, use the disk management utility to determine whether the disk is a basic disk or a dynamic disk.</div>
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<div class="Bullet2_inner"><a name="2172902">Go to </a><span style="font-weight: bold;">Administrative Tools</span> &gt;&gt; <span style="font-weight: bold;">Computer Management</span>, and then select <span style="font-weight: bold;">Disk Management</span> in the list on the left.</div>
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<div class="Indent2"><a name="2172903">Only dynamic disks can be expanded with Windows Disk </a>Management. If the unit is shown as a basic disk, right-click on the disk icon and change it to a dynamic disk.</div>
<div class="Indent2"><a name="2003602">Older Windows systems cannot convert basic disks into dynamic </a>disks after the file system has been created.</div>
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<div class="Bullet2_inner"><a name="2172908">If the unit is shown as a dynamic disk, right-click on it and choose </a>Extend Volume to launch the Extend Volume wizard.</div>
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<div class="Indent"><span class="Bold0Body"><a name="2172909">In other operating systems</a></span>, the tools to expand the partition and file system can vary, depending on the kernel version and file system that you are using. Please consult your system documentation and the LSI KnowledgeBase for more information.</div>
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<dl>
<dt>Related Topics</dt>
<dd>
<div class="RelatedTopic"><a href="Config_Units.6.17.html#1104694" name="2407604">RAID Level Migration (RLM) Overview</a></div>
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<dd>
<div class="RelatedTopic"><a href="Config_Units.6.16.html#2055961" name="2407608">Changing An Existing Configuration by Migrating</a></div>
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<dd>
<div class="RelatedTopic"><a href="Config_Units.6.18.html#1432690" name="2407612">Changing RAID Level</a></div>
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<div class="RelatedTopic"><a href="Config_Units.6.19.html#1438042" name="2407616">Expanding Unit Capacity</a></div>
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