📄 badclus.html
字号:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><!-- http://linux-ntfs.sourceforge.net/ntfs/files/badclus.html --><html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <meta name="description" content="NTFS Documentation"> <link rel="stylesheet" type="text/css" href="../style/ntfsdoc.css"> <link rel="start" type="text/html" href="../index.html" title="NTFS Documentation"> <title>$BadClus (8) - File - NTFS Documentation</title> </head> <body> <table border="0" class="toolbar" summary="" cellspacing="0"> <tr> <td class="toolbar"><a accesskey="1" class="toolbar" href="../index.html">Home</a></td> <td class="toolbar"> </td> <td class="toolbar"><a accesskey="2" class="toolbar" href="../files/index.html">Files</a></td> <td class="toolbar"> </td> <td class="toolbar"><a accesskey="3" class="toolbar" href="../attributes/index.html">Attributes</a></td> <td class="toolbar"> </td> <td class="toolbar"><a accesskey="4" class="toolbar" href="../concepts/index.html">Concepts</a></td> <td class="toolbar"> </td> <td class="toolbar"><a accesskey="5" class="toolbar" href="../help/glossary.html">Glossary</a></td> <td class="toolbar"> </td> <td class="toolbar"><a accesskey="6" class="toolbar" href="../help/index.html">Help</a></td> </tr> </table> <h1>File - $BadClus (8)</h1> <a class="prevnext" accesskey="," href="boot.html">Previous</a> <a class="prevnext" accesskey="." href="secure.html">Next</a> <h2>Overview</h2> <p> This Metadata file contains a list of all the bad clusters on the volume. The file is sparse, with the only data runs pointing at bad clusters. Naturally the file cannot be read. </p> <h2><a class="heading" href="../attributes/index.html">Attributes</a></h2> <table border="1" summary="" cellspacing="0"> <tr> <th class="numeric">Type</th> <th>Description</th> <th>Name</th> </tr> <tr> <td class="numeric"><a class="numeric" href="../attributes/standard_information.html">0x10</a></td> <td><a href="../attributes/standard_information.html">$STANDARD_INFORMATION</a></td> <td> </td> </tr> <tr> <td class="numeric"><a class="numeric" href="../attributes/file_name.html">0x30</a></td> <td><a href="../attributes/file_name.html">$FILE_NAME</a></td> <td>$BadClus</td> </tr> <tr> <td class="numeric"><a class="numeric" href="../attributes/data.html">0x80</a></td> <td><a href="../attributes/data.html">$DATA</a></td> <td>[Unnamed]</td> </tr> <tr> <td class="numeric"><a class="numeric" href="../attributes/data.html">0x80</a></td> <td><a href="../attributes/data.html">$DATA</a></td> <td>$Bad</td> </tr> </table> <a name="bad"></a> <h2>Layout</h2> <h3>Unnamed Data Stream</h3> <p> This is always zero length. </p> <h3>$Bad Data Stream</h3> <p> It is a file the size of the volume. Any cluster that is OK, is represented by a sparse (zero) cluster. Any bad cluster points to that cluster on disk. </p> <h2>Notes</h2> <h3>Other Information</h3> <p> A cluster is bad if it contains at least one bad sector. Because this system file works as any other file, all the bad clusters are marked as used in the $Bitmap system file, so they can never ever be used by any other file. </p> <p>NTFS support hot-fixing: no more FAT's "Abort, Retry, Fail?". If a new bad cluster is found while the system is running, it is silently added to this file. If the cluster was on a fault tolerant volume, ftdisk (the fault tolerant volume driver) reconstitutes the data and NTFS stores them in another free cluster.</p> <ul> <li>Has an empty unnamed data stream.</li> <li>Has a named ($Bad) data stream, the size of the volume (sparse)</li> <li>entire volume of clusters (VCN)</li> <li>allocated size = volume size (bytes)</li> <li>attribute size = volume size (bytes)</li> <li>initialised size = 0 (or is one of above, redundant)</li> <li>runs imply sparse file size of volume</li> <li>initialised = 0 implies completely sparse</li> </ul> <p> This file deals with <a href="../help/glossary.html#cluster">Clusters</a> not sectors. The Cluster is the smallest unit of disk space that NTFS will use. </p> <br> <a class="contact" href="http://linux-ntfs.sourceforge.net/ntfs/files/badclus.html">Online</a> <!-- The two validators will only work if this page is visible on the web --> <a class="contact" href="http://validator.w3.org/check/referer">Validate HTML</a> <a class="contact" href="http://jigsaw.w3.org/css-validator/check/referer">Validate CSS</a> <a class="contact" href="mailto:webmaster@flatcap.org">$Id: badclus.html,v 1.11 2001/07/11 16:31:44 flatcap Exp $</a> </body></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -