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                    <h1 id="set-dbamaxmemory">Set-DbaMaxMemory</h1>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>Author</strong></td>
<td>Chrissy LeMaire (@cl), netnerds.net</td>
</tr>
<tr>
<td><strong>Availability</strong></td>
<td>Windows, Linux, macOS</td>
</tr>
</tbody>
</table>
<p> </p>
<p>Want to see the source code for this command? Check out <a href="https://github.com/dataplat/dbatools/blob/master/public/Set-DbaMaxMemory.ps1">Set-DbaMaxMemory</a> on GitHub.
<br>
Want to see the Bill Of Health for this command? Check out <a href="https://dataplat.github.io/boh#Set-DbaMaxMemory">Set-DbaMaxMemory</a>.</p>
<h2 id="synopsis">Synopsis</h2>
<p>Sets SQL Server 'Max Server Memory' configuration setting to a new value then displays information this setting.</p>
<h2 id="description">Description</h2>
<p>Sets SQL Server max memory then displays information relating to SQL Server Max Memory configuration settings.</p>
<p>Inspired by Jonathan Kehayias's post about SQL Server Max memory (<a href="http://bit.ly/sqlmemcalc">http://bit.ly/sqlmemcalc</a>), this uses a formula to<br />
determine the default optimum RAM to use, then sets the SQL max value to that number.</p>
<p>Jonathan notes that the formula used provides a <em>general recommendation</em> that doesn't account for everything that may<br />
be going on in your specific environment.</p>
<h2 id="syntax">Syntax</h2>
<pre><code>Set-DbaMaxMemory
    [[-SqlInstance] &lt;DbaInstanceParameter[]&gt;]
    [[-SqlCredential] &lt;PSCredential&gt;]
    [[-Max] &lt;Int32&gt;]
    [[-InputObject] &lt;PSObject[]&gt;]
    [-EnableException]
    [-WhatIf]
    [-Confirm]
    [&lt;CommonParameters&gt;]

</code></pre>
<p> </p>
<h2 id="examples">Examples</h2>
<p> </p>
<h5 id="example-1">Example:  1</h5>
<pre><code>PS C:\&gt; Set-DbaMaxMemory sqlserver1
</code></pre>
<p>Set max memory to the recommended on just one server named &quot;sqlserver1&quot;<br></p>
<h5 id="example-2">Example:  2</h5>
<pre><code>PS C:\&gt; Set-DbaMaxMemory -SqlInstance sqlserver1 -Max 2048
</code></pre>
<p>Explicitly set max memory to 2048 on just one server, &quot;sqlserver1&quot;<br></p>
<h5 id="example-3">Example:  3</h5>
<pre><code>PS C:\&gt; Get-DbaRegServer -SqlInstance sqlserver | Test-DbaMaxMemory | Where-Object { $_.MaxValue -gt $_.Total } | Set-DbaMaxMemory
</code></pre>
<p>Find all servers in SQL Server Central Management Server that have Max SQL memory set to higher than the total memory<br>
of the server (think 2147483647), then pipe those to Set-DbaMaxMemory and use the default recommendation.<br></p>
<h3 id="optional-parameters">Optional Parameters</h3>
<h5 id="sqlinstance">-SqlInstance</h5>
<p>The target SQL Server instance or instances.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="sqlcredential">-SqlCredential</h5>
<p>Login to the target instance using alternative credentials. Accepts PowerShell credentials (Get-Credential).<br />
Windows Authentication, SQL Server Authentication, Active Directory - Password, and Active Directory - Integrated are all supported.<br />
For MFA support, please use Connect-DbaInstance.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="max">-Max</h5>
<p>Specifies the max megabytes (MB)<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td>0</td>
</tr>
</tbody>
</table>
<h5 id="inputobject">-InputObject</h5>
<p>A InputObject returned by Test-DbaMaxMemory<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>true (ByValue)</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="enableexception">-EnableException</h5>
<p>By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.<br />
This avoids overwhelming you with &quot;sea of red&quot; exceptions, but is inconvenient because it basically disables advanced scripting.<br />
Using this switch turns this &quot;nice by default&quot; feature off and enables you to catch exceptions with your own try/catch.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td>False</td>
</tr>
</tbody>
</table>
<h5 id="whatif">-WhatIf</h5>
<p>Shows what would happen if the cmdlet runs. The cmdlet is not run.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td>wi</td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="confirm">-Confirm</h5>
<p>Prompts you for confirmation before running the cmdlet.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td>cf</td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<p> </p>

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