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<?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" /> <meta name="keywords" content="MegaRAID SAS SW UG" /> <title>Changing Power Settings</title> <link rel="StyleSheet" href="css/v10392197.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="wwhdata/common/context.js"></script> <script type="text/javascript" language="JavaScript1.2" src="wwhdata/common/towwhdir.js"></script> <script type="text/javascript" language="JavaScript1.2" src="wwhdata/common/wwhpagef.js"></script> <script type="text/javascript" language="JavaScript1.2"> <!-- var WebWorksRootPath = ""; // --> </script> <script type="text/javascript" language="JavaScript1.2"> <!-- // Set reference to top level help frame // var WWHFrame = WWHGetWWHFrame("", true); // --> </script> <script type="text/javascript" language="JavaScript1.2" src="scripts/expand.js"></script> </head> <body onload="WWHUpdate();" onunload="WWHUnload();" onkeydown="WWHHandleKeyDown((document.all||document.getElementById||document.layers)?event:null);" onkeypress="WWHHandleKeyPress((document.all||document.getElementById||document.layers)?event:null);" onkeyup="WWHHandleKeyUp((document.all||document.getElementById||document.layers)?event:null);"> <br /> <div class="WebWorks_Breadcrumbs" style="text-align: left;"> <a class="WebWorks_Breadcrumb_Link" href="MSM_MR_help-4-01.html">Configuration</a> : Changing Power Settings</div> <hr align="left" /> <blockquote> <p class="Heading_1"><a name="3_8_16_1">Changing Power Settings</a></p> <p class="Body"><a name="3_8_16_3_1_2">The RAID controller includes Dimmer Switch® technology that conserves energy by placing certain unused drives into Power-Save mode. In Power-Save mode, the drives use less energy, and the fan and the enclosure require less energy to cool and house the drives, respectively. Also, this technology helps avoid application timeouts caused by spin-up delays and drive wear caused by excessive spin-up/down cycles.</a></p> <p class="Body"><a name="3_8_16_3_1_3">You can use the </a><span class="uicontrol">Power Settings</span> field in the MegaRAID Storage Manager software to choose whether to allow unconfigured drives or Commissioned Hotspares to enter Power-Save mode.</p> <p class="note"> <span style="font-family: Sans-Serif; font-weight: bold">NOTE </span><a name="3_8_16_3_1_4">The Dimmer Switch technology is enabled by default.</a></p> <p class="Body"><a name="3_8_16_3_1_5">When they are in the Power-Save mode, unconfigured drives and drives configured as Commissioned Hotspares (dedicated or global) can be spun down. When spun down, the drives stay in Power-Save mode except for periodic maintenance, which includes the following:</a></p> <div class="List_1_outer" style="margin-left: 1px"> <table border="0" cellspacing="0" cellpadding="0" summary="" role="presentation"> <tr style="vertical-align: baseline"> <td> <p class="List_1_inner" style="width: 18pt; white-space: nowrap"> <img src="square.png" alt="*" border="0" width="5" height="5" /> </p> </td> <td width="100%"> <p class="List_1_inner"><a name="3_8_16_3_1_6_1">Periodic background media scans (Patrol Read) to find and correct media defects to avoid losing data redundancy (hot spare drives only)</a></p> </td> </tr> </table> </div> <div class="List_1_outer" style="margin-left: 1px"> <table border="0" cellspacing="0" cellpadding="0" summary="" role="presentation"> <tr style="vertical-align: baseline"> <td> <p class="List_1_inner" style="width: 18pt; white-space: nowrap"> <img src="square.png" alt="*" border="0" width="5" height="5" /> </p> </td> <td width="100%"> <p class="List_1_inner"><a name="3_8_16_3_1_6_2">Use of a Commissioned Hotspare to rebuild a degraded drive group (Commissioned Hotspare drives only)</a></p> </td> </tr> </table> </div> <div class="List_1_outer" style="margin-left: 1px"> <table border="0" cellspacing="0" cellpadding="0" summary="" role="presentation"> <tr style="vertical-align: baseline"> <td> <p class="List_1_inner" style="width: 18pt; white-space: nowrap"> <img src="square.png" alt="*" border="0" width="5" height="5" /> </p> </td> <td width="100%"> <p class="List_1_inner"><a name="3_8_16_3_1_6_3">Update of disk data format (DDF) and other metadata when you make changes to RAID configurations (Commissioned Hotspare drives and unconfigured drives)</a></p> </td> </tr> </table> </div> <p class="note"> <span style="font-family: Sans-Serif; font-weight: bold">NOTE </span><a name="3_8_16_3_1_7">If your controller does not support this option, the </a><span class="uicontrol">Power Settings</span> field does not appear.</p> <p class="Body"><a name="3_8_16_3_1_8">Follow these steps to change the power-save setting.</a></p> <div class="Step_1_outer" style="margin-left: 1px"> <table border="0" cellspacing="0" cellpadding="0" summary="" role="presentation"> <tr style="vertical-align: baseline"> <td> <p class="Step_1_inner" style="width: 18pt; white-space: nowrap">1. </p> </td> <td width="100%"> <p class="Step_1_inner"><span class="Command"><a name="3_8_16_3_2_1">Select a controller icon in the </a></span><span class="uicontrol">Physical</span><span class="Command"> tab or the </span><span class="uicontrol">Logical</span><span class="Command"> tab in the left panel of the </span><span class="wintitle">MegaRAID Storage Manager</span><span class="Command"> window.</span></p> </td> </tr> </table> </div> <div class="Step_1_outer" style="margin-left: 1px"> <table border="0" cellspacing="0" cellpadding="0" summary="" role="presentation"> <tr style="vertical-align: baseline"> <td> <p class="Step_1_inner" style="width: 18pt; white-space: nowrap">2. </p> </td> <td width="100%"> <p class="Step_1_inner"><span class="Command"><a name="3_8_16_3_2_2">Select </a></span><span class="uicontrol">Go To > Controller > Manage Power Settings</span><span class="Command"> from the menu bar.</span></p> </td> </tr> </table> </div> <p class="Body_1"><a name="3_8_16_3_2_2_4_2">The </a><span class="wintitle">Manage Power Save Settings</span> dialog appears.</p> <p class="Figure_Title">Figure 63. <a name="3_8_16_3_2_2_4_3_2">Manage Power Save Settings</a></p> <p class="Figure_1"><a name="3_8_16_3_2_2_4_3-2"><img class="Default" src="images/MSM_Power_Settings_56DimmerSwitch.jpg" width="557" height="294" style="display: block; float: none; left: 0pt; top: 0pt" alt="" /></a></p> <div class="Step_1_outer" style="margin-left: 1px"> <table border="0" cellspacing="0" cellpadding="0" summary="" role="presentation"> <tr style="vertical-align: baseline"> <td> <p class="Step_1_inner" style="width: 18pt; white-space: nowrap">3. </p> </td> <td width="100%"> <p class="Step_1_inner"><span class="Command"><a name="3_8_16_3_2_3">Select the </a></span><span class="uicontrol">Unconfigured Drives</span><span class="Command"> check box to let the controller enable the unconfigured drives to enter the Power-Save mode.</span></p> </td> </tr> </table> </div> <div class="Step_1_outer" style="margin-left: 1px"> <table border="0" cellspacing="0" cellpadding="0" summary="" role="presentation"> <tr style="vertical-align: baseline"> <td> <p class="Step_1_inner" style="width: 18pt; white-space: nowrap">4. </p> </td> <td width="100%"> <p class="Step_1_inner"><span class="Command"><a name="3_8_16_3_2_4">Select the </a></span><span class="uicontrol">Hot spare Drives</span><span class="Command"> check box to let the controller enable the Hot spare drives to enter the Power-Save mode.</span></p> </td> </tr> </table> </div> <div class="Step_1_outer" style="margin-left: 1px"> <table border="0" cellspacing="0" cellpadding="0" summary="" role="presentation"> <tr style="vertical-align: baseline"> <td> <p class="Step_1_inner" style="width: 18pt; white-space: nowrap">5. </p> </td> <td width="100%"> <p class="Step_1_inner"><span class="Command"><a name="3_8_16_3_2_5">Select the drive standby time (Alt+D) using the drop-down list from the </a></span><span class="uicontrol">Drive standby time</span><span class="Command"> field.</span></p> </td> </tr> </table> </div> <p class="note_1"> <span style="font-family: Sans-Serif; font-weight: bold">NOTE </span><a name="3_8_16_3_2_5_4_2">The </a><span class="uicontrol">Drive Standby time</span> drop-down list is enabled only if any of the check boxes above it are checked. The drive standby time can be 30 minutes, 1 hour, 1.30 hours, or 2 hours through 24 hours.</p> <div class="Step_1_outer" style="margin-left: 1px"> <table border="0" cellspacing="0" cellpadding="0" summary="" role="presentation"> <tr style="vertical-align: baseline"> <td> <p class="Step_1_inner" style="width: 18pt; white-space: nowrap">6. </p> </td> <td width="100%"> <p class="Step_1_inner"><span class="Command"><a name="3_8_16_3_2_6">Click </a></span><span class="uicontrol">OK</span><span class="Command">.</span></p> </td> </tr> </table> </div> <p class="Body_1"><a name="3_8_16_3_2_6_4_2">The Power-Save settings are saved. After you click </a><span class="uicontrol">OK</span>, a confirmation dialog appears prompting you to save your changes.</p> <p class="Body_1"><a name="3_8_16_3_2_6_4_3">If you do not specify the Power-Save settings in the </a><span class="wintitle">Manage Power Save Settings</span> dialog, a confirmation dialog appears. The confirmation dialog mentions that the system does not have power savings for any of the drives, and asks if you would like to proceed.</p> <script type="text/javascript" language="JavaScript1.2"> <!-- // Clear related topics // WWHClearRelatedTopics(); document.writeln(WWHRelatedTopicsInlineHTML()); // --> </script> </blockquote> <hr align="left" /> <!-- LSI changed location of company info to align left --> <!-- Added rol from 2011.3 pages.asp file --> <!-- LSI added copyright style --> <!-- --> <table align="left" role="presentation"> <!-- LSI added support for booknum and reldate --> <!-- --> <tr> <td class="copyright">DB09000202-21, Rev 2.2, July 2015</td> </tr> <tr> <td class="copyright"> <a href="http://www.lsi.com/Pages/trademark.aspx?" target="external_window">Copyright© 2015 by Avago Technologies. All rights reserved.</a> </td> </tr> </table> <script type="text/javascript" language="JavaScript1.2"> <!-- document.write(WWHRelatedTopicsDivTag() + WWHPopupDivTag() + WWHALinksDivTag()); // --> </script> </body> </html>
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