文件操作 - Nytro_DM_topic_2.html
返回文件管理
返回主菜单
删除本文件
文件: /usr/local/MegaRAID Storage Manager/docs/MSM_NYTRO_DM_help/Nytro_DM_topic_2.html
编辑文件内容
<?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" /> <!-- MOTW-DISABLED saved from url=(0014)about:internet --> <meta name="keywords" content="Nytro SW UG" /> <title>Introduction to RAID</title> <link rel="StyleSheet" href="css/v70097124.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;">Introduction to RAID</div> <hr align="left" /> <blockquote> <p class="Title"><a name="3_6_1">Introduction to RAID</a></p> <div class="WebWorks_MiniTOC"> <div class="WebWorks_MiniTOC_Level1"> <a class="WebWorks_MiniTOC_Link" href="Nytro_DM_topic_2_1.html">RAID Levels</a> </div> <div class="WebWorks_MiniTOC_Level1"> <a class="WebWorks_MiniTOC_Link" href="Nytro_DM_topic_2_2.html">RAID Configuration Strategies</a> </div> <div class="WebWorks_MiniTOC_Level1"> <a class="WebWorks_MiniTOC_Link" href="Nytro_DM_topic_2_3.html">RAID Availability Concept</a> </div> <div class="WebWorks_MiniTOC_Level1"> <a class="WebWorks_MiniTOC_Link" href="Nytro_DM_topic_2_4.html">Configuration Planning</a> </div> </div> <p class="Body"><a name="3_6_3_1">RAID is an array, or group, of multiple independent physical drives that provide high performance and fault tolerance. A RAID drive group improves I/O performance and reliability. The RAID drive group appears to the host computer as a single storage unit or as multiple virtual units. I/O is expedited because several drives can be accessed simultaneously.</a></p> <p class="Section_Title"><a name="3_6_3_2_2">RAID Benefits</a></p> <p class="Body"><a name="3_6_3_2_3">RAID drive groups improve data storage reliability and fault tolerance compared to single-drive storage systems. Data loss resulting from a drive failure can be prevented by reconstructing missing data from the remaining drives. RAID improves I/O performance and increases storage subsystem reliability.</a></p> <p class="Section_Title"><a name="3_6_3_3_2">RAID Functions</a></p> <p class="Body"><a name="3_6_3_3_3">Virtual drives are drive groups or spanned drive groups that are available to the operating system. The storage space in a virtual drive is spread across all of the drives in the drive group.</a></p> <p class="Body"><a name="3_6_3_3_4">Your drives must be organized into virtual drives in a drive group, and they must be able to support the RAID level that you choose. Some common RAID functions follow:</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_6_3_3_5_1">Creating hot spare drives.</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_6_3_3_5_2">Configuring drive groups and virtual drives.</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_6_3_3_5_3">Initializing one or more virtual drives.</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_6_3_3_5_4">Accessing controllers, virtual drives, and drives individually.</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_6_3_3_5_5">Rebuilding failed drives.</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_6_3_3_5_6">Verifying that the redundancy data in virtual drives using RAID 1, RAID 5, and RAID 10 is correct.</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_6_3_3_5_7">Reconstructing virtual drives after changing RAID levels or adding a drive to a drive group.</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_6_3_3_5_8">Selecting a host controller on which to work.</a></p> </td> </tr> </table> </div> <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">DB15-001059-00-April 2013</td> </tr> <tr> <td class="copyright"> <a href="http://www.lsi.com/Pages/trademark.aspx?" target="external_window">Copyright© 2013 by LSI Corporation. All rights reserved.</a> </td> </tr> </table> <script type="text/javascript" language="JavaScript1.2"> <!-- document.write(WWHRelatedTopicsDivTag() + WWHPopupDivTag() + WWHALinksDivTag()); // --> </script> </body> </html>
修改文件时间
将文件时间修改为当前时间的前一年
删除文件