3dm2/help/en/Config_Units.6.13.html
2017-11-10 18:26:11 +01:00

182 lines
9.6 KiB
HTML

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xml:lang="en" lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<title>Enabling and Disabling Queuing for a Unit</title>
<link rel="StyleSheet" href="css/Config_Units.css" type="text/css" media="all" />
<link rel="StyleSheet" href="css/webworks.css" type="text/css" media="all" />
<script type="text/javascript" language="JavaScript1.2" src="scripts/expand.js"></script>
<script type="text/javascript" language="JavaScript1.2" src="scripts/seealso.js"></script>
<script type="text/javascript" language="JavaScript1.2">
<!--
var WebWorksRootPath = "";
// -->
</script>
<script type="text/javascript" language="JavaScript1.2">
<!--
var WebWorksSeeAlso = "xxx";
// -->
</script>
</head>
<body style="">
<table align="right">
<tr>
<td style="text-align: left;">
<a href="http://www.lsi.com/channel/products" target="_blank">
<img src="LSI-logo.jpg" border="0" />
</a>
</td>
</tr>
</table>
<div style="text-align: left;">
<p style="color: Navy; font-weight:bold">3DM2™ Online
Help</p>
<table cellspacing="0">
<tr>
<td>
<a href="toc.html">
<img src="images/toc.gif" alt="Table of Contents" border="0" />
</a>
</td>
<td>
<a href="Config_Units.6.12.html">
<img src="images/prev.gif" alt="Previous" border="0" />
</a>
</td>
<td>
<a href="Config_Units.6.14.html">
<img src="images/next.gif" alt="Next" border="0" />
</a>
</td>
<td>
<a href="ix.html">
<img src="images/index.gif" alt="Index" border="0" />
</a>
</td>
</tr>
</table>
</div>
<br clear="all" />
<br />
<div class="WebWorks_Breadcrumbs" style="text-align: left;">
<a class="WebWorks_Breadcrumb_Link" href="Config_Units.6.1.html#1173071">Configuring Units</a> &gt; <a class="WebWorks_Breadcrumb_Link" href="Config_Units.6.8.html#1173071">Setting Unit Policies</a> &gt; Enabling and Disabling Queuing for a Unit</div>
<hr align="left" />
<div>
<div class="Heading2"><a name="1173071">Enabling and Disabling Queuing for a Unit</a></div>
<div class="BodyAfterHead"><a name="1236926">Some drives support command queuing, a feature that can result in increased </a>performance for applications that require a lot of random access of data (usually server-type applications). This is accomplished by causing command reordering to be done on the drive.</div>
<div class="Body"><a name="1173074">In order to make use of command queuing, the feature must be enabled at both </a>the drive and the controller. You can enable support for command queuing on a per-unit basis, as described below.</div>
<div class="Body"><a name="1173075">You can see whether command queuing is supported and enabled for a </a>particular drive in the Drive Details window. For details, see <a href="Drive_Details.html#1039080">Drive Details window</a>. </div>
<div class="anchor">
<span class="Red"> </span><a name="1199891">&nbsp;</a></div>
<table id="1199895" class="NoteTable" style="margin-bottom: pt; margin-right: pt; margin-top: pt; padding-bottom: pt; padding-left: pt; padding-right: pt; padding-top: pt; text-align: left;" cellspacing="0">
<caption></caption>
<tr style="vertical-align: top;">
<td id="tc1199897" style="background-color: Transparent; border-bottom-color: White; border-bottom-style: solid; border-bottom-width: thin; border-left-color: White; border-left-style: solid; border-left-width: thin; border-right-color: White; border-right-style: solid; border-right-width: thin; border-top-color: White; border-top-style: solid; border-top-width: thin; padding-bottom: pt; padding-left: pt; padding-right: pt; padding-top: pt; vertical-align: top;">
<div class="NoteAnchor">
<img src="Note.gif" alt="*" id="bullet1199897" border="0" width="27" height="34" /><a name="1199897">&nbsp;</a></div>
</td>
<td id="tc1199899" style="background-color: Transparent; border-bottom-color: White; border-bottom-style: solid; border-bottom-width: thin; border-left-color: White; border-left-style: solid; border-left-width: thin; border-right-color: White; border-right-style: solid; border-right-width: thin; border-top-color: White; border-top-style: solid; border-top-width: thin; padding-bottom: pt; padding-left: pt; padding-right: pt; padding-top: pt; vertical-align: top;">
<div class="CellBody"><span class="NoteHeading"><a name="1199899">Note:</a></span> Not all drives support command queuing. If a drive does not support command queuing, the policy setting for the controller is ignored. Queuing information for SAS is not available.</div>
</td>
</tr>
</table>
<div class="ToDo"><a name="1173083">To enable or disable queuing for a unit through 3DM2</a></div>
<div class="NumberedFirst_outer" style="margin-left: NaN;">
<table border="0" cellspacing="0" cellpadding="0" id="SummaryNotRequired_np1173084">
<tr style="vertical-align: baseline;">
<td>
<div class="NumberedFirst_inner" style="width: 1.5em; white-space: nowrap;">
<span class="UI-Element">1 </span>
</div>
</td>
<td width="100%">
<div class="NumberedFirst_inner"><a name="1173084">Choose </a><span class="UI-Element">Management &gt;&gt; Controller Settings</span> from the menu bar in 3DM2.</div>
</td>
</tr>
</table>
</div>
<div class="Numbered_outer" style="margin-left: NaN;">
<table border="0" cellspacing="0" cellpadding="0" id="SummaryNotRequired_np1173088">
<tr style="vertical-align: baseline;">
<td>
<div class="Numbered_inner" style="width: 1.5em; white-space: nowrap;">
<span class="UI-Element">2 </span>
</div>
</td>
<td width="100%">
<div class="Numbered_inner"><a name="1173088">In the </a><span class="UI-Element">Unit Policies </span>section of the <a href="Controller_Settings.html#1088416">Controller Settings page</a>, enable queuing by checking the box under “Queuing” for the designated unit; disable it by unchecking the box.</div>
</td>
</tr>
</table>
</div>
<div class="Indent"><a name="1173089">The page refreshes, and a message at the top confirms the change that you </a>have made.</div>
<hr />
<dl>
<dt>Related Topics</dt>
<dd>
<div class="RelatedTopic"><a href="Config_Units.6.9.html#1113091" name="2407435">Enabling and Disabling the Unit Write Cache</a></div>
</dd>
<dd>
<div class="RelatedTopic"><a href="Config_Units.6.10.html#2185087" name="2407439">Working with Read Cache Settings</a></div>
</dd>
<dd>
<div class="RelatedTopic"><a href="Config_Units.6.11.html#2185080" name="2407443">Enabling or Disabling Auto-Verify for a Unit</a></div>
</dd>
<dd>
<div class="RelatedTopic"><a href="Config_Units.6.12.html#1589821" name="2407447">Setting Overwrite ECC (Continue on Source Error When Rebuilding)</a></div>
</dd>
<dd>
<div class="RelatedTopic"><a href="Config_Units.6.14.html#1113125" name="2407451">Setting the StorSave Profile for a Unit</a></div>
</dd>
<dd>
<div class="RelatedTopic"><a href="Config_Units.6.15.html#2055333" name="2407455">Rapid RAID Recovery</a></div>
</dd>
</dl>
</div>
<hr align="left" />
<div style="text-align: left;">
<table cellspacing="0">
<tr>
<td>
<a href="toc.html">
<img src="images/toc.gif" alt="Table of Contents" border="0" />
</a>
</td>
<td>
<a href="Config_Units.6.12.html">
<img src="images/prev.gif" alt="Previous" border="0" />
</a>
</td>
<td>
<a href="Config_Units.6.14.html">
<img src="images/next.gif" alt="Next" border="0" />
</a>
</td>
<td>
<a href="ix.html">
<img src="images/index.gif" alt="Index" border="0" />
</a>
</td>
</tr>
</table>
</div>
<table align="right">
<tr>
<td style="text-align: left;">
<a href="http://www.lsi.com/channel/products" target="_blank">
<img src="LSI-logo.jpg" border="0" />
</a>
</td>
</tr>
<tr>
<td style="text-align: left; font-size: 16px ; font-weight: bold">
<a href="http://www.lsi.com/channel/products" target="_blank">LSI Corporation</a>
</td>
</tr>
</table>
<p style="font-size: .8em">Copyright LSI 2004-2010<br />
To contact Support, go to <a href="http://www.lsi.com/channel/ContactUs">http://www.lsi.com/channel/ContactUs</a></p>
</body>
</html>