SQLSERVER数据库备份操作和还原操作做了什么看了这篇文章：还原/备份时做了些什么自己也测试了一下，下面说的错误日志指的是SQLSERVER ERRORLOG 一般在C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\LOG路径下，如果SQLSERVER安装在C盘的话要打

SQLSERVER数据库备份操作和还原操作做了什么

看了这篇文章：还原/备份时做了些什么

自己也测试了一下，下面说的错误日志指的是SQLSERVER ERRORLOG

一般在C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\LOG路径下，如果SQLSERVER安装在C盘的话

要打开跟踪标志：3004, 3605

完整备份

先清空错误日志

<span>1</span> <span>EXEC</span> <span>[</span><span>sys</span><span>]</span>.<span>[</span><span>sp_cycle_errorlog</span><span>]</span>

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执行数据库完整备份

<span>1</span>  <span>DBCC</span> traceon(<span>3004</span>, <span>3605</span>, <span>-</span><span>1</span><span>)
</span><span>2</span>  <span>--</span><span>完整备份</span>
<span>3</span>  <span>BACKUP</span> <span>DATABASE</span> <span>[</span><span>pratice</span><span>]</span>
<span>4</span>  <span>TO</span> <span>DISK</span><span>=</span><span>'</span><span>D:\pratice_fullbackup_201207160152.bak</span><span>'</span>

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读取错误日志

<span>1</span> <span>EXEC</span> <span>[</span><span>sys</span><span>]</span>.<span>[</span><span>xp_readerrorlog</span><span>]</span>

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备份时候，查询窗口的输出

<span>1</span> 已为数据库 <span>'</span><span>pratice</span><span>'</span>，文件 <span>'</span><span>pratice</span><span>'</span> (位于文件 <span>2</span> 上)处理了 <span>28152</span><span> 页。
</span><span>2</span> 已为数据库 <span>'</span><span>pratice</span><span>'</span>，文件 <span>'</span><span>pratice_log</span><span>'</span> (位于文件 <span>2</span> 上)处理了 <span>2</span><span> 页。
</span><span>3</span> <span>BACKUP</span> <span>DATABASE</span> 成功处理了 <span>28154</span> 页，花费 <span>1.639</span> 秒(<span>134.195</span> MB<span>/</span>秒)。

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错误日志输出

<span> 1</span> <span>1</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.300</span> spid56       <span>DBCC</span> TRACEON <span>3004</span>, server process ID (SPID) <span>56</span>. This <span>is</span> an informational message <span>only</span>; no <span>user</span> action <span>is</span><span> required.
</span><span> 2</span>  <span>2</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.300</span> spid56       <span>DBCC</span> TRACEON <span>3605</span>, server process ID (SPID) <span>56</span>. This <span>is</span> an informational message <span>only</span>; no <span>user</span> action <span>is</span><span> required.
</span><span> 3</span>  <span>3</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.300</span> spid56       BackupDatabase: <span>Database</span><span> pratice
</span><span> 4</span>  <span>4</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.320</span> spid56       <span>Backup</span>: Media <span>open</span>
<span> 5</span>  <span>5</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.320</span> spid56       <span>Backup</span>: Media ready <span>to</span> <span>backup</span>
<span> 6</span>  <span>6</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.320</span> spid56       <span>Backup</span>: Clearing differential bitmaps   <span>--</span><span>-正在清除DCM页面的位信息，因为是完整备份，差异变更(Differential Changed Map，DCM)页面  http://tech.it168.com/a2010/0921/1106/000001106857.shtml</span>
<span> 7</span>  <span>7</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.330</span> spid56       <span>Backup</span><span>: Bitmaps cleared
</span><span> 8</span>  <span>8</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.330</span> spid56       BackupDatabase: <span>Checkpoint</span> done   <span>--</span><span>做checkpoint，将所有修改的数据都被写入磁盘</span>
<span> 9</span>  <span>9</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.330</span> spid56       <span>Backup</span>: Scanning allocation bitmaps  <span>--</span><span>扫描数据库第3页：GAM页 和数据库第4页：SGAM页</span>
<span>10</span> <span>10</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.340</span> spid56       <span>Backup</span>: Done <span>with</span><span> allocation bitmaps
</span><span>11</span> <span>11</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.340</span> spid56       BackupDatabase: <span>Work</span> estimates done  <span>--</span><span>估计备份操作所需要的时间</span>
<span>12</span> <span>12</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.340</span> spid56       <span>Backup</span><span>: Leading metadata div done
</span><span>13</span> <span>13</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.340</span> spid56       <span>Backup</span>:Copying data   <span>--</span><span>正在拷贝数据</span>
<span>14</span> <span>14</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.340</span> spid56       <span>Backup</span>: DBReaderCount <span>=</span> <span>1</span>   <span>--</span><span>备份数据库读线程只有一个</span>
<span>15</span> <span>15</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>50.340</span> spid56       Started <span>file</span><span> D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice.mdf
</span><span>16</span> <span>16</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>51.970</span> spid56       Completed <span>file</span><span> D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice.mdf
</span><span>17</span> <span>17</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>51.970</span> spid56       Padding MSDA <span>with</span> <span>65536</span><span> bytes
</span><span>18</span> <span>18</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>51.970</span> spid56       BackupDatabase: <span>Database</span><span> files done
</span><span>19</span> <span>19</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>51.980</span> spid56       慂正灵慄慴慢敳退慂正灵潌g邐<span>%</span>s : <span>Log</span><span> files done
</span><span>20</span> <span>20</span>  : <span>Log</span><span> files done
</span><span>21</span> <span>21</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>51.980</span> spid56       <span>Backup</span>: Trailing config done  <span>--</span><span>后续配置完成</span>
<span>22</span> <span>22</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>51.980</span> spid56       <span>Backup</span><span>: MBC done
</span><span>23</span> <span>23</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>51.990</span> spid56       BackupDatabase: Writing history records  <span>--</span><span>写入备份历史记录到错误日志</span>
<span>24</span> <span>24</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>51.990</span> 备份           <span>Database</span> backed up. <span>Database</span>: pratice, creation date(time): <span>2013</span><span>/</span><span>11</span><span>/</span><span>19</span>(<span>19</span>:<span>35</span>:<span>23</span>), pages dumped: <span>28171</span>, first LSN: <span>3087</span>:<span>10132</span>:<span>37</span>, last LSN: <span>3087</span>:<span>10149</span>:<span>1</span>, <span>number</span> <span>of</span> <span>dump</span> devices: <span>1</span>, device information: (<span>FILE</span><span>=</span><span>1</span>, TYPE<span>=</span><span>DISK</span>: {D:\pratice_fullbackup_201207160152   <span>--</span><span>pages dumped: 28171  BACKUP DATABASE 成功处理了 28154 页，花费 1.639 秒(134.195 MB/秒)</span>
<span>25</span> <span>25</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>51.990</span> spid56       Writing <span>backup</span> history records  <span>--</span><span>写入备份历史记录到msdb的相关备份表</span>
<span>26</span> <span>26</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>17</span>:<span>52.010</span> spid56       BackupDatabase: Finished

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关键的语句我都做了一些解释

2013-12-01 19:17:50.320 spid56 Backup: Clearing differential bitmaps ---正在清除DCM页面的位信息，

因为是完整备份，差异变更(Differential Changed Map，DCM)页面 http://tech.it168.com/a2010/0921/1106/000001106857.shtml

差异备份

<span>1</span> <span>--</span><span>差异备份</span>
<span>2</span> <span>Backup</span> <span>Database</span> <span>[</span><span>pratice</span><span>]</span>
<span>3</span> <span>To</span> <span>disk</span><span>=</span><span>'</span><span>d:\pratice_Diff_20070908.bak</span><span>'</span>
<span>4</span> <span>With</span> Differential

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备份时候，查询窗口的输出

<span>1</span> 已为数据库 <span>'</span><span>pratice</span><span>'</span>，文件 <span>'</span><span>pratice</span><span>'</span> (位于文件 <span>1</span> 上)处理了 <span>40</span><span> 页。
</span><span>2</span> 已为数据库 <span>'</span><span>pratice</span><span>'</span>，文件 <span>'</span><span>pratice_log</span><span>'</span> (位于文件 <span>1</span> 上)处理了 <span>1</span><span> 页。
</span><span>3</span> <span>BACKUP</span> <span>DATABASE</span> <span>WITH</span> DIFFERENTIAL 成功处理了 <span>41</span> 页，花费 <span>0.016</span> 秒(<span>20.019</span> MB<span>/</span>秒)。

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错误日志输出

<span> 1</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.790</span> spid56       BackupDatabase: <span>Database</span><span> pratice
</span><span> 2</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.820</span> spid56       <span>Backup</span>: Media <span>open</span>
<span> 3</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.820</span> spid56       <span>Backup</span>: Media ready <span>to</span> <span>backup</span>
<span> 4</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.820</span> spid56       BackupDatabase: <span>Checkpoint</span><span> done
</span><span> 5</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.820</span> spid56       <span>Backup</span><span>: Scanning allocation bitmaps
</span><span> 6</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.830</span> spid56       <span>Backup</span>: Done <span>with</span><span> allocation bitmaps
</span><span> 7</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.830</span> spid56       BackupDatabase: <span>Work</span><span> estimates done
</span><span> 8</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.830</span> spid56       <span>Backup</span><span>: Leading metadata div done
</span><span> 9</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.830</span> spid56       <span>Backup</span><span>:Copying data
</span><span>10</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.830</span> spid56       <span>Backup</span>: DBReaderCount <span>=</span> <span>1</span>
<span>11</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.830</span> spid56       Started <span>file</span><span> D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice.mdf
</span><span>12</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.830</span> spid56       Completed <span>file</span><span> D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice.mdf
</span><span>13</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.830</span> spid56       Padding MSDA <span>with</span> <span>720896</span><span> bytes
</span><span>14</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.840</span> spid56       BackupDatabase: <span>Database</span><span> files done
</span><span>15</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.840</span> spid56       慂正灵慄慴慢敳退慂正灵潌g邐<span>%</span>s : <span>Log</span><span> files done
</span><span>16</span>  : <span>Log</span><span> files done
</span><span>17</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.840</span> spid56       <span>Backup</span><span>: Trailing config done
</span><span>18</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.840</span> spid56       <span>Backup</span><span>: MBC done
</span><span>19</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.840</span><span> spid56       BackupDatabase: Writing history records
</span><span>20</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.840</span> 备份           <span>Database</span> differential changes were backed up. <span>Database</span>: pratice, creation date(time): <span>2013</span><span>/</span><span>11</span><span>/</span><span>19</span>(<span>19</span>:<span>35</span>:<span>23</span>), pages dumped: <span>139</span>, first LSN: <span>3087</span>:<span>10184</span>:<span>34</span>, last LSN: <span>3087</span>:<span>10200</span>:<span>1</span>, <span>full</span> <span>backup</span> LSN: <span>3087</span>:<span>10159</span>:<span>37</span>, <span>number</span> <span>of</span> <span>dump</span> devices: <span>1</span><span>, device information: 
</span><span>21</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.850</span> spid56       Writing <span>backup</span><span> history records
</span><span>22</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>42</span>:<span>29.860</span> spid56       BackupDatabase: Finished

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跟完整备份的错误日志差不多

日志备份

<span>1</span> <span>--</span><span>日志备份，默认截断日志</span>
<span>2</span> <span>Backup</span> <span>Log</span> <span>[</span><span>pratice</span><span>]</span>
<span>3</span> <span>To</span> <span>disk</span><span>=</span><span>'</span><span>d:\pratice_Log_20070908.bak</span><span>'</span>

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备份时候，查询窗口的输出

<span>1</span> 已为数据库 <span>'</span><span>pratice</span><span>'</span>，文件 <span>'</span><span>pratice_log</span><span>'</span> (位于文件 <span>1</span> 上)处理了 <span>29</span><span> 页。
</span><span>2</span> <span>BACKUP</span> <span>LOG</span> 成功处理了 <span>29</span> 页，花费 <span>0.008</span> 秒(<span>27.954</span> MB<span>/</span>秒)。

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错误日志输出

<span> 1</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.080</span> spid56       BackupLog: <span>database</span><span> pratice
</span><span> 2</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.100</span><span> spid56       BackupLog: SafeCheckpoint done
</span><span> 3</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.110</span> spid56       <span>Backup</span>: Media <span>open</span>
<span> 4</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.110</span> spid56       <span>Backup</span>: Media ready <span>to</span> <span>backup</span>
<span> 5</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.110</span> spid56       BackupLog: <span>Work</span><span> estimate done
</span><span> 6</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.110</span> spid56       <span>Backup</span><span>: Leading metadata div done
</span><span> 7</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.110</span> spid56       慂正灵潌g邐<span>%</span>s : <span>Log</span><span> files done
</span><span> 8</span>  : <span>Log</span><span> files done
</span><span> 9</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.110</span> spid56       <span>Backup</span><span>: Trailing config done
</span><span>10</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.110</span> spid56       <span>Backup</span><span>: MBC done
</span><span>11</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.120</span><span> spid56       BackupLog: Writing history records
</span><span>12</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.120</span> 备份           <span>Log</span> was backed up. <span>Database</span>: pratice, creation date(time): <span>2013</span><span>/</span><span>11</span><span>/</span><span>19</span>(<span>19</span>:<span>35</span>:<span>23</span>), first LSN: <span>3087</span>:<span>9742</span>:<span>1</span>, last LSN: <span>3087</span>:<span>10200</span>:<span>1</span>, <span>number</span> <span>of</span> <span>dump</span> devices: <span>1</span>, device information: (<span>FILE</span><span>=</span><span>1</span>, TYPE<span>=</span><span>DISK</span>: {<span>'</span><span>d:\pratice_Log_20070908.bak</span><span>'</span>}). This <span>is</span><span> an informational m
</span><span>13</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.120</span> spid56       Writing <span>backup</span><span> history records
</span><span>14</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.140</span> spid56       BackupLog: Finished

Copy after login

日志备份里只有这句话跟差异备份和完整备份不一样

<span>1</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>19</span>:<span>48</span>:<span>02.100</span> spid56       BackupLog: SafeCheckpoint done

Copy after login

文件备份

<span>1</span> <span>--</span><span>文件备份</span>
<span>2</span> <span>Exec</span> Sp_Helpdb pratice <span>--</span><span>查看数据文件</span>
<span>3</span> <span>Backup</span> <span>Database</span><span> pratice
</span><span>4</span> <span>File</span><span>=</span><span>'</span><span>pratice</span><span>'</span>   <span>--</span><span>数据文件的逻辑名</span>
<span>5</span> <span>To</span> <span>disk</span><span>=</span><span>'</span><span>d:\pratice_File_20070908.bak</span><span>'</span>

Copy after login

备份时候，查询窗口的输出

<span>1</span> 已为数据库 <span>'</span><span>pratice</span><span>'</span>，文件 <span>'</span><span>pratice</span><span>'</span> (位于文件 <span>1</span> 上)处理了 <span>28152</span><span> 页。
</span><span>2</span> 已为数据库 <span>'</span><span>pratice</span><span>'</span>，文件 <span>'</span><span>pratice_log</span><span>'</span> (位于文件 <span>1</span> 上)处理了 <span>2</span><span> 页。
</span><span>3</span> <span>BACKUP</span> <span>DATABASE</span>...<span>FILE</span><span>=name<span>></span> 成功处理了 <span>28154</span> 页，花费 <span>1.663</span> 秒(<span>132.258</span> MB<span>/</span>秒)。</span>

Copy after login

错误日志输出

<span> 1</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.480</span> spid56       BackupDatabase: <span>Database</span><span> pratice
</span><span> 2</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.500</span> spid56       <span>Backup</span>: Media <span>open</span>
<span> 3</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.500</span> spid56       <span>Backup</span>: Media ready <span>to</span> <span>backup</span>
<span> 4</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.500</span> spid56       <span>Backup</span><span>: Clearing differential bitmaps
</span><span> 5</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.500</span> spid56       <span>Backup</span><span>: Bitmaps cleared
</span><span> 6</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.510</span> spid56       BackupDatabase: <span>Checkpoint</span><span> done
</span><span> 7</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.510</span> spid56       <span>Backup</span><span>: Scanning allocation bitmaps
</span><span> 8</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.510</span> spid56       <span>Backup</span>: Done <span>with</span><span> allocation bitmaps
</span><span> 9</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.510</span> spid56       BackupDatabase: <span>Work</span><span> estimates done
</span><span>10</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.510</span> spid56       <span>Backup</span><span>: Leading metadata div done
</span><span>11</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.510</span> spid56       <span>Backup</span><span>:Copying data
</span><span>12</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.520</span> spid56       <span>Backup</span>: DBReaderCount <span>=</span> <span>1</span>
<span>13</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>13.520</span> spid56       Started <span>file</span><span> D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice.mdf
</span><span>14</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>15.200</span> spid56       Completed <span>file</span><span> D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice.mdf
</span><span>15</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>15.200</span> spid56       Padding MSDA <span>with</span> <span>65536</span><span> bytes
</span><span>16</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>15.200</span> spid56       BackupDatabase: <span>Database</span><span> files done
</span><span>17</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>15.210</span> spid56       慂正灵慄慴慢敳退慂正灵潌g邐<span>%</span>s : <span>Log</span><span> files done
</span><span>18</span>  : <span>Log</span><span> files done
</span><span>19</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>15.210</span> spid56       <span>Backup</span><span>: Trailing config done
</span><span>20</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>15.210</span> spid56       <span>Backup</span><span>: MBC done
</span><span>21</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>15.220</span><span> spid56       BackupDatabase: Writing history records
</span><span>22</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>15.220</span> 备份           <span>Database</span> <span>file</span> was backed up. <span>Database</span>: pratice, creation date(time): <span>2013</span><span>/</span><span>11</span><span>/</span><span>19</span>(<span>19</span>:<span>35</span>:<span>23</span>), <span>file</span> list: (pratice(D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice.mdf)), pages dumped: <span>28171</span>, <span>number</span> <span>of</span> <span>dump</span> devices: <span>1</span><span>, device informatio
</span><span>23</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>15.230</span> spid56       Writing <span>backup</span><span> history records
</span><span>24</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>53</span>:<span>15.240</span> spid56       BackupDatabase: Finished

Copy after login

文件组备份

<span>1</span> <span>--</span><span>文件组备份</span>
<span>2</span> <span>Exec</span> Sp_Helpdb pratice <span>--</span><span>查看数据文件</span>
<span>3</span> <span>Backup</span> <span>Database</span><span> pratice
</span><span>4</span> FileGroup<span>=</span><span>'</span><span>Primary</span><span>'</span>   <span>--</span><span>数据文件的逻辑名</span>
<span>5</span> <span>To</span> <span>disk</span><span>=</span><span>'</span><span>d:\pratice_FileGroup_20070908.bak</span><span>'</span>
<span>6</span> <span>With</span> init

Copy after login

备份时候，查询窗口的输出

<span>1</span> 已为数据库 <span>'</span><span>pratice</span><span>'</span>，文件 <span>'</span><span>pratice</span><span>'</span> (位于文件 <span>1</span> 上)处理了 <span>28152</span><span> 页。
</span><span>2</span> 已为数据库 <span>'</span><span>pratice</span><span>'</span>，文件 <span>'</span><span>pratice_log</span><span>'</span> (位于文件 <span>1</span> 上)处理了 <span>2</span><span> 页。
</span><span>3</span> <span>BACKUP</span> <span>DATABASE</span>...<span>FILE</span><span>=name<span>></span> 成功处理了 <span>28154</span> 页，花费 <span>1.679</span> 秒(<span>130.998</span> MB<span>/</span>秒)。</span>

Copy after login

错误日志输出

<span> 1</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.790</span> spid56       BackupDatabase: <span>Database</span><span> pratice
</span><span> 2</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.800</span> spid56       <span>Backup</span>: Media <span>open</span>
<span> 3</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.800</span> spid56       <span>Backup</span>: Media ready <span>to</span> <span>backup</span>
<span> 4</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.800</span> spid56       <span>Backup</span><span>: Clearing differential bitmaps
</span><span> 5</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.810</span> spid56       <span>Backup</span><span>: Bitmaps cleared
</span><span> 6</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.810</span> spid56       BackupDatabase: <span>Checkpoint</span><span> done
</span><span> 7</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.810</span> spid56       <span>Backup</span><span>: Scanning allocation bitmaps
</span><span> 8</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.820</span> spid56       <span>Backup</span>: Done <span>with</span><span> allocation bitmaps
</span><span> 9</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.820</span> spid56       BackupDatabase: <span>Work</span><span> estimates done
</span><span>10</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.820</span> spid56       <span>Backup</span><span>: Leading metadata div done
</span><span>11</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.820</span> spid56       <span>Backup</span><span>:Copying data
</span><span>12</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.820</span> spid56       <span>Backup</span>: DBReaderCount <span>=</span> <span>1</span>
<span>13</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>49.820</span> spid56       Started <span>file</span><span> D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice.mdf
</span><span>14</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>51.480</span> spid56       Completed <span>file</span><span> D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice.mdf
</span><span>15</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>51.480</span> spid56       Padding MSDA <span>with</span> <span>65536</span><span> bytes
</span><span>16</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>51.480</span> spid56       BackupDatabase: <span>Database</span><span> files done
</span><span>17</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>51.480</span> spid56       慂正灵慄慴慢敳退慂正灵潌g邐<span>%</span>s : <span>Log</span><span> files done
</span><span>18</span>  : <span>Log</span><span> files done
</span><span>19</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>51.480</span> spid56       <span>Backup</span><span>: Trailing config done
</span><span>20</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>51.480</span> spid56       <span>Backup</span><span>: MBC done
</span><span>21</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>51.500</span><span> spid56       BackupDatabase: Writing history records
</span><span>22</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>51.500</span> 备份           <span>Database</span> <span>file</span> was backed up. <span>Database</span>: pratice, creation date(time): <span>2013</span><span>/</span><span>11</span><span>/</span><span>19</span>(<span>19</span>:<span>35</span>:<span>23</span>), <span>file</span> list: (pratice(D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice.mdf)), pages dumped: <span>28171</span>, <span>number</span> <span>of</span> <span>dump</span> devices: <span>1</span><span>, device informatio
</span><span>23</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>51.500</span> spid56       Writing <span>backup</span><span> history records
</span><span>24</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>20</span>:<span>58</span>:<span>51.520</span> spid56       BackupDatabase: Finished

Copy after login

在完整备份和差异备份里面为什麽，查询窗口输出的“成功处理页面”比错误日志里pages dumped的页面还要少？？

就算加上数据库头部的一些关键页面PFS 、DCM、 BCM、 IAM页面加起来也没有那麽多

数据库头部的一些关键页面PFS 、DCM、 BCM、 IAM参考文章：查看SQLSERVER内部数据页面的小插件Internals Viewer

下面是完整备份时候的输出，多了17页

BACKUP DATABASE 成功处理了 28154 页
pages dumped: 28171

其实文章里也有提示：还原/备份时做了些什么

比如，你有个1TB的数据库，但是只储存了100GB的数据，那么备份的时候，只需要备份这100GB的数据。

然而，在还原数据库的时候，你必须重构1TB的数据库，那将意味着大量的时间将被消耗

这篇文章也有一些提示：谁用掉了我的数据库空间？

SQL Server在使用数据页的时候，为了提高速度，会先把一些页面一次预留”reserve”给表格，然后真正有数据插入的时候，再使用

查询窗口里输出的是实际就是数据库真正存储数据的页面的数量

BACKUP DATABASE 成功处理了 28154 页

而错误日志就是所有页面，不论是存储数据还是PFS页面还是预留页面

相关实验：下面的实验创建了一个3GB大小的数据库，然后插入了一些数据到数据库中

（1）不对数据库进行收缩，直接备份数据库，然后还原

（2）先对数据库进行收缩，备份数据库，然后还原

SQLSERVER数据库备份操作和还原操作做了什么

<span>USE</span><span> master
</span><span>GO</span>
<span>--</span><span>创建数据库 初始大小为3G</span>
<span>CREATE</span> <span>DATABASE</span> <span>[</span><span>testbackupdb</span><span>]</span> <span>ON</span> <span>PRIMARY</span><span> 
( NAME </span><span>=</span> N<span>'</span><span>testbackupdb</span><span>'</span><span>, 
FILENAME </span><span>=</span> N<span>'</span><span>D:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\DATA\testbackupdb.mdf</span><span>'</span> , SIZE <span>=</span> 3072000KB , FILEGROWTH <span>=</span><span> 1024KB )
    </span><span>LOG</span> <span>ON</span><span> 
( NAME </span><span>=</span> N<span>'</span><span>testbackupdb_log</span><span>'</span><span>, 
FILENAME </span><span>=</span> N<span>'</span><span>D:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\DATA\testbackupdb_log.ldf</span><span>'</span> , SIZE <span>=</span> 1024KB , FILEGROWTH <span>=</span> <span>10</span><span>%</span><span>)
</span><span>GO</span>

<span>--</span><span>创建表</span>
<span>USE</span> <span>[</span><span>testbackupdb</span><span>]</span>
<span>GO</span>

<span>CREATE</span> <span>TABLE</span> aa (id <span>INT</span>,NAME <span>NVARCHAR</span>(<span>MAX</span><span>))
</span><span>GO</span>

<span>--</span><span>插入数据</span>
<span>INSERT</span> <span>INTO</span><span> aa
</span><span>SELECT</span> <span>1</span>,<span>REPLICATE</span>(<span>'</span><span>aa</span><span>'</span>,<span>500</span><span>)
</span><span>GO</span> <span>10000</span>

<span>--</span><span>查看表使用的空间 大概26MB</span>
<span>sys.sp_spaceused aa

sys.sp_helpdb </span><span>[</span><span>testbackupdb</span><span>]</span>


<span>--</span><span>备份数据库</span>
<span>BACKUP</span> <span>DATABASE</span> <span>[</span><span>testbackupdb</span><span>]</span> <span>TO</span> <span>DISK</span> <span>=</span><span>'</span><span>d:\testbackupdb_fullbackup.bak</span><span>'</span> 


<span>--</span><span>删除数据库</span>
<span>DROP</span> <span>DATABASE</span> <span>[</span><span>testbackupdb</span><span>]</span>



<span>--</span><span>1、还原数据库   没有收缩数据库的情况下</span>
<span>SET</span> <span>STATISTICS</span> TIME <span>ON</span>
<span>RESTORE</span> <span>DATABASE</span> <span>[</span><span>testbackupdb</span><span>]</span> <span>FROM</span>  <span>DISK</span> <span>=</span> N<span>'</span><span>D:\testbackupdb_fullbackup.bak</span><span>'</span> <span>WITH</span>  <span>FILE</span> <span>=</span> <span>1</span><span>, 
MOVE N</span><span>'</span><span>testbackupdb</span><span>'</span> <span>TO</span> N<span>'</span><span>D:\testbackupdb.mdf</span><span>'</span><span>,  
MOVE N</span><span>'</span><span>testbackupdb_log</span><span>'</span> <span>TO</span> N<span>'</span><span>D:\testbackupdb_1.ldf</span><span>'</span><span>, 
NOUNLOAD,  </span><span>REPLACE</span>,  STATS <span>=</span> <span>10</span>
<span>GO</span>
<span>SET</span> <span>STATISTICS</span> TIME <span>OFF</span><span>

 SQL Server 执行时间:
   CPU 时间 </span><span>=</span> <span>140</span> 毫秒，占用时间 <span>=</span> <span>3024</span><span> 毫秒。
SQL Server 分析和编译时间: 
   CPU 时间 </span><span>=</span> <span>0</span> 毫秒，占用时间 <span>=</span> <span>0</span><span> 毫秒。
</span><span>--</span><span>-----------------------------------------------------------------------------------------</span><span>
--</span><span>收缩数据库为100MB</span>
<span>USE</span> <span>[</span><span>testbackupdb</span><span>]</span>
<span>GO</span>
<span>DBCC</span> SHRINKFILE (N<span>'</span><span>testbackupdb</span><span>'</span> , <span>100</span><span>)
</span><span>GO</span>


<span>--</span><span>备份数据库</span>
<span>BACKUP</span> <span>DATABASE</span> <span>[</span><span>testbackupdb</span><span>]</span> <span>TO</span> <span>DISK</span> <span>=</span><span>'</span><span>d:\testbackupdb_fullbackup.bak</span><span>'</span> 


<span>--</span><span>删除数据库</span>
<span>DROP</span> <span>DATABASE</span> <span>[</span><span>testbackupdb</span><span>]</span>

<span>--</span><span>2、还原数据库   没有收缩数据库的情况下</span>
<span>SET</span> <span>STATISTICS</span> TIME <span>ON</span>
<span>RESTORE</span> <span>DATABASE</span> <span>[</span><span>testbackupdb</span><span>]</span> <span>FROM</span>  <span>DISK</span> <span>=</span> N<span>'</span><span>D:\testbackupdb_fullbackup.bak</span><span>'</span> <span>WITH</span>  <span>FILE</span> <span>=</span> <span>1</span><span>, 
MOVE N</span><span>'</span><span>testbackupdb</span><span>'</span> <span>TO</span> N<span>'</span><span>D:\testbackupdb.mdf</span><span>'</span><span>,  
MOVE N</span><span>'</span><span>testbackupdb_log</span><span>'</span> <span>TO</span> N<span>'</span><span>D:\testbackupdb_1.ldf</span><span>'</span><span>, 
NOUNLOAD,  </span><span>REPLACE</span>,  STATS <span>=</span> <span>10</span>
<span>GO</span>
<span>SET</span> <span>STATISTICS</span> TIME <span>OFF</span><span>

 SQL Server 执行时间:
   CPU 时间 </span><span>=</span> <span>140</span> 毫秒，占用时间 <span>=</span> <span>1549</span><span> 毫秒。
SQL Server 分析和编译时间: 
   CPU 时间 </span><span>=</span> <span>0</span> 毫秒，占用时间 <span>=</span> <span>10</span><span> 毫秒。



</span><span>--</span><span>查看数据库大小</span>
<span>sys.sp_spaceused aa

sys.sp_helpdb </span><span>[</span><span>testbackupdb</span><span>]</span>

<span>--</span><span>结论：备份数据库前先收缩，还原数据库的时候会比较快</span><span>
--</span><span>因为收缩了数据库之后，数据库的size变成了收缩之后的大小，其实还原数据库的时候</span><span>
--</span><span>SQLSERVER根据根据这个初始大小先初始化出这个数据库初始大小的磁盘空间，然后再复制数据</span>

Copy after login

View Code

结论：备份数据库前先收缩，还原数据库的时候会比较快
因为收缩了数据库之后，数据库的size变成了收缩之后的大小，其实还原数据库的时候
SQLSERVER根据根据这个初始大小先初始化出这个数据库初始大小的磁盘空间，然后再复制数据

SQLSERVER数据库备份操作和还原操作做了什么

数据库还原时候的信息

执行下面脚本先kill掉所有连接到pratice数据库的连接

<span> 1</span> <span>--</span><span>执行下面脚本先kill掉所有连接到pratice数据库的连接</span>
<span> 2</span> <span>USE</span><span> master
</span><span> 3</span> <span>GO</span>
<span> 4</span> <span>DECLARE</span> <span>@spid</span> <span>INT</span>
<span> 5</span> <span>DECLARE</span> <span>@count</span> <span>INT</span>
<span> 6</span> <span>WHILE</span> <span>@count</span> <span>></span> <span>0</span>
<span> 7</span>     <span>BEGIN</span>
<span> 8</span>         <span>SELECT</span>  <span>@count</span> <span>=</span> <span>COUNT</span>(<span>*</span><span>)
</span><span> 9</span>         <span>FROM</span>    sys.<span>[</span><span>sysprocesses</span><span>]</span>
<span>10</span>         <span>WHERE</span>   <span>[</span><span>dbid</span><span>]</span> <span>=</span> <span>DB_ID</span>(<span>'</span><span>pratice</span><span>'</span><span>)
</span><span>11</span>         <span>SELECT</span>  <span>@spid</span> <span>=</span> <span>[</span><span>spid</span><span>]</span>
<span>12</span>         <span>FROM</span>    sys.<span>[</span><span>sysprocesses</span><span>]</span>
<span>13</span>         <span>WHERE</span>   <span>[</span><span>dbid</span><span>]</span> <span>=</span> <span>DB_ID</span>(<span>'</span><span>pratice</span><span>'</span><span>)
</span><span>14</span>         <span>EXEC</span>(<span>'</span><span>kill </span><span>'</span><span>+</span><span>@spid</span><span>)
</span><span>15</span>     <span>END</span>

Copy after login

<span>1</span> <span>--</span><span>完整备份还原</span>
<span>2</span> <span>RESTORE</span> <span>DATABASE</span> <span>[</span><span>pratice</span><span>]</span>
<span>3</span> <span>FROM</span> <span>DISK</span> <span>=</span><span>'</span><span>D:\pratice_backup_201207160152.bak</span><span>'</span> <span>WITH</span> <span>REPLACE</span>

Copy after login

还原的时候，查询窗口的输出

<span>1</span> 已为数据库 <span>'</span><span>pratice</span><span>'</span>，文件 <span>'</span><span>pratice</span><span>'</span> (位于文件 <span>1</span> 上)处理了 <span>28152</span><span> 页。
</span><span>2</span> 已为数据库 <span>'</span><span>pratice</span><span>'</span>，文件 <span>'</span><span>pratice_log</span><span>'</span> (位于文件 <span>1</span> 上)处理了 <span>2</span><span> 页。
</span><span>3</span> <span>RESTORE</span> <span>DATABASE</span> 成功处理了 <span>28154</span> 页，花费 <span>2.267</span> 秒(<span>97.020</span> MB<span>/</span>秒)。

Copy after login

错误日志输出

 <span>1</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>20</span>:<span>47.490</span> spid56       RestoreDatabase: <span>Database</span><span> pratice
 </span><span>2</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>20</span>:<span>47.490</span> spid56       Opening <span>backup</span> <span>set</span>  <span>--</span><span>打开备份集</span>
 <span>3</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>20</span>:<span>47.500</span> spid56       SetTargetRestoreAge: <span>0</span>
 <span>4</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>20</span>:<span>47.500</span> spid56       <span>Restore</span>: Configuration div loaded  <span>--</span><span>读取数据库配置，例如数据库的初始大小</span>
 <span>5</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>20</span>:<span>47.500</span> spid56       <span>Restore</span>: <span>Backup</span> <span>set</span> <span>is</span> <span>open</span>
 <span>6</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>20</span>:<span>47.500</span> spid56       <span>Restore</span><span>: Planning begins
 </span><span>7</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>20</span>:<span>47.520</span> spid56       Halting FullText crawls <span>on</span> <span>database</span> pratice  <span>--</span><span>因为pratice数据库使用了全文搜索，这里会Halting停止全文搜索抓取</span>
 <span>8</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>20</span>:<span>47.520</span> spid56       Dismounting FullText catalogs  <span>--</span><span>卸载FullText目录</span>
 <span>9</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>20</span>:<span>47.520</span> spid56       X<span>-</span>locking <span>database</span>: pratice    <span>--</span><span>用排他锁锁住pratice数据库</span>
<span>10</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>20</span>:<span>47.520</span> spid56       Resuming <span>any</span><span> halted fulltext crawls  恢复全文搜索抓取
</span><span>11</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.310</span> spid56       RestoreDatabase: <span>Database</span><span> pratice
</span><span>12</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.310</span> spid56       Opening <span>backup</span> <span>set</span>
<span>13</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.320</span> spid56       SetTargetRestoreAge: <span>0</span>
<span>14</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.320</span> spid56       <span>Restore</span><span>: Configuration div loaded
</span><span>15</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.320</span> spid56       <span>Restore</span>: <span>Backup</span> <span>set</span> <span>is</span> <span>open</span>
<span>16</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.320</span> spid56       <span>Restore</span><span>: Planning begins
</span><span>17</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.340</span> spid56       Halting FullText crawls <span>on</span> <span>database</span><span> pratice
</span><span>18</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.340</span><span> spid56       Dismounting FullText catalogs
</span><span>19</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.340</span> spid56       X<span>-</span>locking <span>database</span><span>: pratice
</span><span>20</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.340</span> spid56       <span>Restore</span><span>: Planning complete
</span><span>21</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.340</span> spid56       <span>Restore</span>: BeginRestore (offline) <span>on</span><span> pratice
</span><span>22</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.340</span> spid56       AppDomain <span>2</span> (pratice.dbo<span>[</span><span>runtime</span><span>]</span>.<span>1</span>) <span>is</span> marked <span>for</span> unload due <span>to</span> common language runtime (CLR) <span>or</span> security data definition language (DDL) operations.                    <span>--</span><span>卸载CLR</span>
<span>23</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.350</span> spid20s      AppDomain <span>2</span> (pratice.dbo<span>[</span><span>runtime</span><span>]</span>.<span>1</span><span>) unloaded.
</span><span>24</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.360</span> spid56       <span>Restore</span>: PreparingContainers  <span>--</span><span>准备容器</span>
<span>25</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.390</span> spid56       <span>Restore</span>: Containers are ready <span>--</span><span>容器准备完成</span>
<span>26</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.390</span> spid56       Zeroing D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice_log.ldf <span>from</span> page <span>1</span> <span>to</span> <span>6528</span> (<span>0x2000</span> <span>to</span> <span>0x3300000</span>) <span>--</span><span>日志填零初始化</span>
<span>27</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.430</span> spid56       <span>Restore</span>: Restoring <span>backup</span> <span>set</span>
<span>28</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.430</span> spid56       <span>Restore</span>: Transferring data <span>to</span> pratice   <span>--</span><span>传输数据到pratice数据库</span>
<span>29</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>28.570</span> spid56       Zeroing completed <span>on</span><span> D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice_log.ldf 
</span><span>30</span> http:<span>//</span>blogs.msdn.com<span>/</span>b<span>/</span>apgcdsd<span>/</span>archive<span>/</span><span>2013</span><span>/</span><span>06</span><span>/</span><span>17</span><span>/</span>sql<span>-</span>server<span>-</span><span>log</span><span>-</span><span>write.aspx
</span><span>31</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.670</span> spid56       <span>Restore</span>: Waiting <span>for</span> <span>log</span> zero <span>on</span><span> pratice
</span><span>32</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.680</span> spid56       <span>Restore</span>: LogZero complete  <span>--</span><span>日志填零完毕</span>
<span>33</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.680</span> spid56       SetTargetRestoreAge: <span>0</span>
<span>34</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.700</span> spid56       FileHandleCache: <span>0</span> files opened. CacheSize: <span>12</span>
<span>35</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.700</span> spid56       <span>Restore</span>: Data transfer complete <span>on</span> pratice  <span>--</span><span>数据传输完毕</span>
<span>36</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.710</span> spid56       <span>Restore</span>: <span>Backup</span> <span>set</span> restored  <span>--</span><span>备份集已经还原</span>
<span>37</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.720</span> spid56       Starting up <span>database</span> <span>'</span><span>pratice</span><span>'</span>.  <span>--</span><span>启动pratice数据库</span>
<span>38</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.780</span> spid56       The <span>database</span> <span>'</span><span>pratice</span><span>'</span> <span>is</span> marked RESTORING <span>and</span> <span>is</span> <span>in</span> a state that does <span>not</span> allow recovery <span>to</span> be run.  <span>--</span><span>数据库处于正在还原状态，还未能完全恢复进行运行</span>
<span>39</span> <span>--</span><span>SQLSERVER数据库主要状态和切换路径 http://www.cnblogs.com/lyhabc/archive/2012/09/15/2687076.html</span>
<span>40</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.780</span> spid56       <span>Restore</span><span>-</span>Redo begins <span>on</span> <span>database</span> pratice  <span>--</span><span>重做日志!!</span>
<span>41</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.790</span> spid56       RunOfflineRedo logIter.Init(): FirstLsn(PruId: <span>0</span>): <span>0xc0f</span>:<span>0x27dd</span>:<span>0x25</span>
<span>42</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.790</span> spid56       RunOfflineRedo logIter.Init(): LastLsn(PruId: <span>0</span>): <span>0xc0f</span>:<span>0x27ee</span>:<span>0x1</span>
<span>43</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.790</span> spid56       OfflineRollforward: StopLsn<span>/</span>LastLsn(PruId: <span>0</span>): <span>0xc0f</span>:<span>0x27ee</span>:<span>0x1</span>
<span>44</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.790</span> spid56       Rollforward complete <span>on</span> <span>database</span> pratice <span>--</span><span>为什麽会有Rollforward http://www.cnblogs.com/lyhabc/p/3448449.html</span>
<span>45</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.810</span> spid56       <span>Restore</span>: Done <span>with</span> fixups  <span>--</span><span>checkdb检查完毕 fixup：修正</span>
<span>46</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.810</span> spid56       <span>Restore</span>: Transitioning <span>database</span> <span>to</span><span> ONLINE
</span><span>47</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.810</span> spid56       <span>Restore</span>: Restarting <span>database</span> <span>for</span><span> ONLINE
</span><span>48</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.820</span> spid56       Starting up <span>database</span> <span>'</span><span>pratice</span><span>'</span><span>.
</span><span>49</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.860</span> spid56       FixupLogTail(progress) zeroing D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice_log.ldf <span>from</span> <span>0x1efdc00</span> <span>to</span> <span>0x1efe000</span>.                           <span>--</span><span>修正日志尾部</span>
<span>50</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.860</span> spid56       Zeroing D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice_log.ldf <span>from</span> page <span>3967</span> <span>to</span> <span>4447</span> (<span>0x1efe000</span> <span>to</span> <span>0x22be000</span><span>)
</span><span>51</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.870</span> spid56       Zeroing completed <span>on</span><span> D:\Program Files\Microsoft SQL Server\MSSQL11.SQL2012\MSSQL\DATA\pratice_log.ldf
</span><span>52</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.870</span><span> spid56       PostRestoreContainerFixups: fixups complete
</span><span>53</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.870</span> spid56       CHECKDB <span>for</span> <span>database</span> <span>'</span><span>pratice</span><span>'</span> finished without errors <span>on</span> <span>2013</span><span>-</span><span>11</span><span>-</span><span>23</span> <span>23</span>:<span>35</span>:<span>18.670</span> (local time). This <span>is</span> an informational message <span>only</span>; no <span>user</span> action <span>is</span><span> required.
</span><span>54</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.880</span> spid56       PostRestoreReplicationFixup <span>for</span> pratice starts  <span>--</span><span>复制相关</span>
<span>55</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.970</span> spid56       PostRestoreReplicationFixup <span>for</span><span> pratice complete
</span><span>56</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.970</span> spid56       <span>Restore</span>: <span>Database</span> <span>is</span> restarted   <span>--</span><span>数据库已经重启</span>
<span>57</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.970</span> 备份           <span>Restore</span> <span>is</span> complete <span>on</span> <span>database</span> <span>'</span><span>pratice</span><span>'</span>.  The <span>database</span> <span>is</span> now available.  <span>--</span><span>数据库还原完成，数据库现在是可用状态</span>
<span>58</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.980</span> spid56       Resuming <span>any</span> halted fulltext crawls   <span>--</span><span>恢复全文搜索抓取</span>
<span>59</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.990</span> spid56       <span>Restore</span>: Writing history records    <span>--</span><span>还原数据库记录写入msdb里相关的表</span>
<span>60</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.990</span> 备份           <span>Database</span> was restored: <span>Database</span>: pratice, creation date(time): <span>2013</span><span>/</span><span>11</span><span>/</span><span>19</span>(<span>19</span>:<span>35</span>:<span>23</span>), first LSN: <span>3087</span>:<span>10205</span>:<span>37</span>, last LSN: <span>3087</span>:<span>10222</span>:<span>1</span>, <span>number</span> <span>of</span> <span>dump</span> devices: <span>1</span>, device information: (<span>FILE</span><span>=</span><span>1</span>, TYPE<span>=</span><span>DISK</span>: {<span>'</span><span>D:\pratice_backup_201207160152.bak</span><span>'</span>}). Informational  
<span>61</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>30.990</span> spid56       Writing <span>backup</span> history records    <span>--</span><span>备份历史记录写入到错误日志</span>
<span>62</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>31.010</span> spid56       <span>Restore</span>: Done <span>with</span><span> MSDB maintenance   
</span><span>63</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>21</span>:<span>21</span>:<span>31.010</span> spid56       RestoreDatabase: Finished

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还有两个跟踪标志

跟踪标志：3014、3604

为了节省篇幅我就补贴出刚才两个跟踪标志的信息了，只贴出3014、3604这两个跟踪标志输出的信息

<span>1</span> <span>dbcc</span> traceon(<span>3014</span>, <span>3604</span>, <span>-</span><span>1</span>)

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完整备份

<span> 1</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>22</span>:<span>22</span>:<span>03.300</span> spid56       Calculating expected total data <span>to</span> write  <span>--</span><span>计算需要写入备份设备的数据量</span>
<span> 2</span> <span>2013</span><span>-</span><span>12</span><span>-</span><span>01</span> <span>22</span>:<span>22</span>:<span>03.300</span> spid56       Fid(<span>1</span>) E

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