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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>Rebuilding a Drive</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-6-01.html">Maintaining and Managing Storage Configurations</a> : Rebuilding a Drive</div> <hr align="left" /> <blockquote> <p class="Heading_1"><a name="3_12_12_1">Rebuilding a Drive</a></p> <p class="Body"><a name="3_12_12_3_1_2">If a drive in a redundant virtual drive (RAID 1, 5, 6, 10, 50, or 60) fails, the MegaRAID Storage Manager software automatically rebuilds the data on a hot spare drive to prevent data loss. The rebuild is a fully automatic process, so it is not necessary to issue a </a><span class="codeph">Rebuild</span> command. You can monitor the progress of drive rebuilds in the <span class="wintitle">Group Show Progress</span> window. To open this window, select <span class="uicontrol">Manage > Show Progress</span>.</p> <p class="Body"><a name="3_12_12_3_1_3">If a single drive in a RAID 1, RAID 5, RAID 10, or RAID 50 virtual drive fails, the system is protected from data loss. A RAID 6 virtual drive can survive two failed drives. A RAID 60 virtual drive can survive two failed drives in each span in the drive group. Data loss is prevented by using parity data in RAID 5, RAID 6, RAID 50, and RAID 60, and data redundancy in RAID 1 and RAID 10.</a></p> <p class="Body"><a name="3_12_12_3_1_4">The failed drive must be replaced, and the data on the drive must be rebuilt on a new drive to restore the system to fault tolerance. You can choose to rebuild the data on the failed drive if the drive is still operational. If dedicated hot spares or global hot spare disks are available, the failed drive is rebuilt automatically without any user intervention.</a></p> <p class="Body"><a name="3_12_12_3_1_5">A red circle to the right of the drive icon </a><img class="Default" src="images/Drive_failed_Icon.jpg" width="34" height="14" style="display: inline; float: none; left: 0pt; top: 0pt" alt="" />indicates that a drive has failed. A yellow circle appears to the right of the icon of the virtual drive that uses this drive which indicates that the virtual drive is in a degraded state; the data is still safe, but data could be lost if another drive fails.</p> <p class="Body"><a name="3_12_12_3_1_6">Follow these steps to rebuild a drive:</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_12_12_3_2_1">Right-click the icon of the failed drive, and select </a></span><span class="uicontrol">Rebuild</span><span class="Command">.</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_12_12_3_2_2">Click </a></span><span class="uicontrol">Yes</span><span class="Command"> when the warning message appears. If the drive is still good, a rebuild starts.</span></p> </td> </tr> </table> </div> <p class="Body_1"><a name="3_12_12_3_2_2_4_2">You can monitor the progress of the rebuild in the </a><span class="wintitle">Group Show Progress</span> window by selecting <span class="uicontrol">Manage > Show Progress</span>. If the drive cannot be rebuilt, an error message appears. Continue with the next step.</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_12_12_3_2_3">Shut down the system, disconnect the power cord, and open the computer case.</a></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_12_12_3_2_4">Replace the failed drive with a new drive of equal capacity.</a></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_12_12_3_2_5">Close the computer case, reconnect the power cord, and restart the computer.</a></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">6. </p> </td> <td width="100%"> <p class="Step_1_inner"><span class="Command"><a name="3_12_12_3_2_6">Restart the MegaRAID Storage Manager software.</a></span></p> </td> </tr> </table> </div> <p class="Body_1"><a name="3_12_12_3_2_6_4_2">When the new drive spins up, the drive icon changes back to normal status, and the rebuild process begins automatically. You can monitor the progress of the rebuild in the </a><span class="wintitle">Group Show Progress</span> window by selecting <span class="uicontrol">Manage > Show Progress</span>.</p> <p class="Body"><a name="3_12_12_3_3_2">If you want to force a drive into Fail status to trigger a rebuild, right-click the drive icon, and select </a><span class="uicontrol">Make Drive Offline</span>. A red circle appears next to the drive icon. Right-click the icon, and select <span class="uicontrol">Rebuild</span> from the pop-up menu.</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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