阿里云CentOS 7系统挂载SSD云盘的教程
<p><span><strong>一、查看SSD云盘</strong></span></p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_438482">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
<div class="line number2 index1 alt1">
2</div>
<div class="line number3 index2 alt2">
3</div>
<div class="line number4 index3 alt1">
4</div>
<div class="line number5 index4 alt2">
5</div>
<div class="line number6 index5 alt1">
6</div>
<div class="line number7 index6 alt2">
7</div>
<div class="line number8 index7 alt1">
8</div>
<div class="line number9 index8 alt2">
9</div>
<div class="line number10 index9 alt1">
10</div>
<div class="line number11 index10 alt2">
11</div>
<div class="line number12 index11 alt1">
12</div>
<div class="line number13 index12 alt2">
13</div>
<div class="line number14 index13 alt1">
14</div>
<div class="line number15 index14 alt2">
15</div>
<div class="line number16 index15 alt1">
16</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash functions">sudo</code> <code class="bash functions">fdisk</code> <code class="bash plain">-l </code>
</div>
<div class="line number2 index1 alt1">
<code class="bash spaces"> </code>
</div>
<div class="line number3 index2 alt2">
<code class="bash plain">Disk </code><code class="bash plain">/dev/vda</code><code class="bash plain">: 42.9 GB, 42949672960 bytes, 83886080 sectors </code>
</div>
<div class="line number4 index3 alt1">
<code class="bash plain">Units = sectors of 1 * 512 = 512 bytes </code>
</div>
<div class="line number5 index4 alt2">
<code class="bash plain">Sector size (logical</code><code class="bash plain">/physical</code><code class="bash plain">): 512 bytes / 512 bytes </code>
</div>
<div class="line number6 index5 alt1">
<code class="bash plain">I</code><code class="bash plain">/O</code> <code class="bash plain">size (minimum</code><code class="bash plain">/optimal</code><code class="bash plain">): 512 bytes / 512 bytes </code>
</div>
<div class="line number7 index6 alt2">
<code class="bash plain">Disk label </code><code class="bash functions">type</code><code class="bash plain">: dos </code>
</div>
<div class="line number8 index7 alt1">
<code class="bash plain">Disk identifier: 0x635e6c7d </code>
</div>
<div class="line number9 index8 alt2">
<code class="bash spaces"> </code>
</div>
<div class="line number10 index9 alt1">
<code class="bash spaces"> </code><code class="bash plain">Device Boot Start End Blocks Id System </code>
</div>
<div class="line number11 index10 alt2">
<code class="bash plain">/dev/vda1</code> <code class="bash plain">2048 83886079 41942016 83 Linux </code>
</div>
<div class="line number12 index11 alt1">
<code class="bash spaces"> </code>
</div>
<div class="line number13 index12 alt2">
<code class="bash plain">Disk </code><code class="bash plain">/dev/vdb</code><code class="bash plain">: 107.4 GB, 107374182400 bytes, 209715200 sectors </code>
</div>
<div class="line number14 index13 alt1">
<code class="bash plain">Units = sectors of 1 * 512 = 512 bytes </code>
</div>
<div class="line number15 index14 alt2">
<code class="bash plain">Sector size (logical</code><code class="bash plain">/physical</code><code class="bash plain">): 512 bytes / 512 bytes </code>
</div>
<div class="line number16 index15 alt1">
<code class="bash plain">I</code><code class="bash plain">/O</code> <code class="bash plain">size (minimum</code><code class="bash plain">/optimal</code><code class="bash plain">): 512 bytes / 512 bytes</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
<div class="codetool" id="codetool">
<div class="code_n">
<textarea></textarea>
</div>
</div>
</div>
<p>
可以看到SSD系统已经识别为/dev/vdb</p>
<p>
<span><strong>二、格式化云盘</strong></span></p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_399696">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
<div class="line number2 index1 alt1">
2</div>
<div class="line number3 index2 alt2">
3</div>
<div class="line number4 index3 alt1">
4</div>
<div class="line number5 index4 alt2">
5</div>
<div class="line number6 index5 alt1">
6</div>
<div class="line number7 index6 alt2">
7</div>
<div class="line number8 index7 alt1">
8</div>
<div class="line number9 index8 alt2">
9</div>
<div class="line number10 index9 alt1">
10</div>
<div class="line number11 index10 alt2">
11</div>
<div class="line number12 index11 alt1">
12</div>
<div class="line number13 index12 alt2">
13</div>
<div class="line number14 index13 alt1">
14</div>
<div class="line number15 index14 alt2">
15</div>
<div class="line number16 index15 alt1">
16</div>
<div class="line number17 index16 alt2">
17</div>
<div class="line number18 index17 alt1">
18</div>
<div class="line number19 index18 alt2">
19</div>
<div class="line number20 index19 alt1">
20</div>
<div class="line number21 index20 alt2">
21</div>
<div class="line number22 index21 alt1">
22</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash functions">sudo</code> <code class="bash plain">mkfs.ext4 </code><code class="bash plain">/dev/vdb</code>
</div>
<div class="line number2 index1 alt1">
<code class="bash plain">mke2fs 1.42.9 (28-Dec-2013) </code>
</div>
<div class="line number3 index2 alt2">
<code class="bash plain">Filesystem label= </code>
</div>
<div class="line number4 index3 alt1">
<code class="bash plain">OS </code><code class="bash functions">type</code><code class="bash plain">: Linux </code>
</div>
<div class="line number5 index4 alt2">
<code class="bash plain">Block size=4096 (log=2) </code>
</div>
<div class="line number6 index5 alt1">
<code class="bash plain">Fragment size=4096 (log=2) </code>
</div>
<div class="line number7 index6 alt2">
<code class="bash plain">Stride=0 blocks, Stripe width=0 blocks </code>
</div>
<div class="line number8 index7 alt1">
<code class="bash plain">6553600 inodes, 26214400 blocks </code>
</div>
<div class="line number9 index8 alt2">
<code class="bash plain">1310720 blocks (5.00%) reserved </code><code class="bash keyword">for</code> <code class="bash plain">the super user </code>
</div>
<div class="line number10 index9 alt1">
<code class="bash plain">First data block=0 </code>
</div>
<div class="line number11 index10 alt2">
<code class="bash plain">Maximum filesystem blocks=2174746624 </code>
</div>
<div class="line number12 index11 alt1">
<code class="bash plain">800 block </code><code class="bash functions">groups</code>
</div>
<div class="line number13 index12 alt2">
<code class="bash plain">32768 blocks per group, 32768 fragments per group </code>
</div>
<div class="line number14 index13 alt1">
<code class="bash plain">8192 inodes per group </code>
</div>
<div class="line number15 index14 alt2">
<code class="bash plain">Superblock backups stored on blocks: </code>
</div>
<div class="line number16 index15 alt1">
<code class="bash spaces"> </code><code class="bash plain">32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, </code>
</div>
<div class="line number17 index16 alt2">
<code class="bash spaces"> </code><code class="bash plain">4096000, 7962624, 11239424, 20480000, 23887872 </code>
</div>
<div class="line number18 index17 alt1">
<code class="bash spaces"> </code>
</div>
<div class="line number19 index18 alt2">
<code class="bash plain">Allocating group tables: </code><code class="bash keyword">done</code> </div>
<div class="line number20 index19 alt1">
<code class="bash plain">Writing inode tables: </code><code class="bash keyword">done</code> </div>
<div class="line number21 index20 alt2">
<code class="bash plain">Creating journal (32768 blocks): </code><code class="bash keyword">done</code>
</div>
<div class="line number22 index21 alt1">
<code class="bash plain">Writing superblocks and filesystem accounting information: </code><code class="bash keyword">done</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
<div class="codetool" id="codetool">
<div class="code_n">
<textarea></textarea>
</div>
</div>
</div>
<p>
<span><strong>三、挂载</strong></span></p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_486515">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash functions">sudo</code> <code class="bash functions">mount</code> <code class="bash plain">/dev/vdb</code> <code class="bash plain">/opt</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
<div class="codetool" id="codetool">
<div class="code_n">
<textarea></textarea>
</div>
</div>
</div>
<p>
将云盘挂载到/opt目录下。</p>
<p>
<span><strong>四、配置开机自动挂载</strong></span></p>
<p>
修改/etc/fstab文件，文件末尾添加</p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_789154">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash plain">/dev/vdb</code> <code class="bash plain">/opt</code> <code class="bash plain">ext4 defaults 0 0</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
<div class="codetool" id="codetool">
<div class="code_n">
<textarea></textarea>
</div>
</div>
</div>
<p>
<span><strong>五、重启检查</strong></span></p>
<p>
使用</p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_191013">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash plain">init 6</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
<div class="codetool" id="codetool">
<div class="code_n">
<textarea></textarea>
</div>
</div>
</div>
<p>
优雅的重启系统。</p>
<p>
使用</p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_434408">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
<div class="line number2 index1 alt1">
2</div>
<div class="line number3 index2 alt2">
3</div>
<div class="line number4 index3 alt1">
4</div>
<div class="line number5 index4 alt2">
5</div>
<div class="line number6 index5 alt1">
6</div>
<div class="line number7 index6 alt2">
7</div>
<div class="line number8 index7 alt1">
8</div>
<div class="line number9 index8 alt2">
9</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash functions">sudo</code> <code class="bash functions">df</code> <code class="bash plain">-h </code>
</div>
<div class="line number2 index1 alt1">
<code class="bash plain">Filesystem Size Used Avail Use% Mounted on </code>
</div>
<div class="line number3 index2 alt2">
<code class="bash plain">/dev/vda1</code> <code class="bash plain">40G 3.6G 34G 10% / </code>
</div>
<div class="line number4 index3 alt1">
<code class="bash plain">devtmpfs 1.9G 0 1.9G 0% </code><code class="bash plain">/dev</code>
</div>
<div class="line number5 index4 alt2">
<code class="bash plain">tmpfs 1.9G 0 1.9G 0% </code><code class="bash plain">/dev/shm</code>
</div>
<div class="line number6 index5 alt1">
<code class="bash plain">tmpfs 1.9G 8.4M 1.9G 1% </code><code class="bash plain">/run</code>
</div>
<div class="line number7 index6 alt2">
<code class="bash plain">tmpfs 1.9G 0 1.9G 0% </code><code class="bash plain">/sys/fs/cgroup</code>
</div>
<div class="line number8 index7 alt1">
<code class="bash plain">/dev/vdb</code> <code class="bash plain">99G 61M 94G 1% </code><code class="bash plain">/opt</code>
</div>
<div class="line number9 index8 alt2">
<code class="bash plain">tmpfs 380M 0 380M 0% </code><code class="bash plain">/run/user/1000</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
<div class="codetool" id="codetool">
<div class="code_n">
<textarea></textarea>
</div>
</div>
</div>
<p>
可以看到系统已挂载了SSD云盘。</p>
<p>
<span><strong>总结</strong></span></p>
<p>
以上就是阿里云CentOS 7挂载SSD云盘方法的全部内容，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流。</p>
<p>
原文链接：http://blog.csdn.net/skykingf/article/details/51994680</p>
頁:
[1]