[deployment-guide] Updated the "Viewing File Systems" section.
Jaromir Hradilek
jhradile at fedoraproject.org
Thu Oct 13 16:51:29 UTC 2011
commit 707bf20b47e48423536a70507800e1b268b56382
Author: Jaromir Hradilek <jhradile at redhat.com>
Date: Thu Oct 13 18:22:55 2011 +0200
Updated the "Viewing File Systems" section.
en-US/System_Monitoring_Tools.xml | 167 +++++++++++++++++++++++-------------
1 files changed, 107 insertions(+), 60 deletions(-)
---
diff --git a/en-US/System_Monitoring_Tools.xml b/en-US/System_Monitoring_Tools.xml
index ee39fb3..7353c0a 100644
--- a/en-US/System_Monitoring_Tools.xml
+++ b/en-US/System_Monitoring_Tools.xml
@@ -97,7 +97,7 @@ Swap: 1015800k total, 0k used, 1015800k free, 189008k cached
12 root 20 0 0 0 0 S 0.0 0.0 0:00.00 khelper
<lineannotation>[output truncated]</lineannotation></screen>
<para>
- <xref linkend="interactive-top-command" /> contains useful interactive commands that you can use with <command>top</command>. For more information, refer to the <command>top</command>(1) manual page.
+ <xref linkend="interactive-top-command" /> contains useful interactive commands that you can use with <command>top</command>. For more information, refer to the <emphasis role="bold">top</emphasis>(1) manual page.
</para>
<table id="interactive-top-command">
<title>Interactive top commands</title>
@@ -333,7 +333,7 @@ Swap: 4095 0 4095</screen>
<primary><application>System Monitor</application></primary>
</indexterm>
<para>
- If you prefer a graphical interface, you can use the <application>System Monitor</application> application. To start it, select <menuchoice><guimenu>Applications</guimenu><guimenuitem>System Tools</guimenuitem><guimenuitem>System Monitor</guimenuitem></menuchoice> from the <guimenu>Activities</guimenu> menu, or execute <command>gnome-system-monitor</command> at a shell prompt. Click on the <guilabel>Resources</guilabel> tab.
+ If you prefer a graphical interface, you can use the <application>System Monitor</application> application. To start it, select <menuchoice><guimenu>Applications</guimenu><guimenuitem>System Tools</guimenuitem><guimenuitem>System Monitor</guimenuitem></menuchoice> from the <guimenu>Activities</guimenu> menu, or execute <command>gnome-system-monitor</command> at a shell prompt. Then click on the <guilabel>Resources</guilabel> tab to view the system's memory usage.
</para>
<figure id="fig-sysinfo-memory">
<title>System Monitor - Resources</title>
@@ -359,64 +359,111 @@ Swap: 4095 0 4095</screen>
<indexterm>
<primary>file systems</primary>
</indexterm>
- <indexterm>
- <primary><command>df</command></primary>
- </indexterm>
- <para>
- The <command>df</command> command reports the system's disk space usage. If you Execute the command <command>df</command> at a shell prompt, the output looks similar to the following:
- </para>
- <screen>~]$ <command>df</command>
-Filesystem 1K-blocks Used Available Use% Mounted on
-/dev/mapper/volgrp1-lvroot
- 14127024 6868092 6541316 52% /
-tmpfs 2008828 592 2008236 1% /dev/shm
-/dev/sda1 495844 65047 405197 14% /boot
-/dev/mapper/luks-b20f8f7a-7f0f-4497-8de4-81bfa3e541cf
- 122046576 12111420 103735552 11% /home</screen>
- <para>
- By default, this utility shows the partition size in 1 kilobyte blocks and the amount of used and available disk space in kilobytes. To view the information in megabytes and gigabytes, use the command <command>df -h</command>. The <command>-h</command> argument stands for human-readable format. The output looks similar to the following:
- </para>
- <screen>~]$ <command>df -h</command>
-Filesystem Size Used Avail Use% Mounted on
-/dev/mapper/volgrp1-lvroot
- 14G 6.6G 6.3G 52% /
-tmpfs 2.0G 592K 2.0G 1% /dev/shm
-/dev/sda1 485M 64M 396M 14% /boot
-/dev/mapper/luks-b20f8f7a-7f0f-4497-8de4-81bfa3e541cf
- 117G 12G 99G 11% /home</screen>
- <indexterm>
- <primary>system information</primary>
- <secondary>file systems</secondary>
- <tertiary><filename>/dev/shm</filename></tertiary>
- </indexterm>
- <indexterm>
- <primary><filename>/dev/shm</filename></primary>
- </indexterm>
- <para>
- In the list of mounted partitions, there is an entry for <filename>/dev/shm</filename>. This entry represents the system's virtual memory file system.
- </para>
- <indexterm>
- <primary><command>du</command></primary>
- </indexterm>
- <para>
- The <command>du</command> command displays the estimated amount of space being used by files in a directory. If you execute <command>du</command> at a shell prompt, the disk usage for each of the subdirectories is displayed in a list. The grand total for the current directory and subdirectories are also shown as the last line in the list. If you do not want to see the totals for all the subdirectories, use the command <command>du -hs</command> to see only the grand total for the directory in human-readable format. Use the <command>du --help</command> command to see more options.
- </para>
- <para>
- To view the system's partitions and disk space usage in a graphical format, use the <guilabel>Gnome System Monitor</guilabel> by clicking on <menuchoice><guimenu>Applications</guimenu><guimenuitem>System Tools</guimenuitem><guimenuitem>System Monitor</guimenuitem></menuchoice> or executing the <command>gnome-system-monitor</command> command at a shell prompt. Select the File Systems tab to view the system's partitions. The figure below illustrates the File Systems tab.
- </para>
- <figure id="fig-sysinfo-filesystems">
- <title>System Monitor - File Systems</title>
- <mediaobject>
- <imageobject>
- <imagedata fileref="images/system-monitor-file-systems.png" format="PNG" scalefit="0" />
- </imageobject>
- <textobject>
- <para>
- File systems tab of the gnome-system-monitor
- </para>
- </textobject>
- </mediaobject>
- </figure>
+ <section id="s2-sysinfo-filesystems-df">
+ <title>Using the df Command</title>
+ <indexterm>
+ <primary><command>df</command></primary>
+ </indexterm>
+ <para>
+ The <command>df</command> command reports the system's disk space usage, for example:
+ </para>
+ <screen>~]$ <command>df</command>
+Filesystem 1K-blocks Used Available Use% Mounted on
+rootfs 20642428 3610728 16822056 18% /
+devtmpfs 1532396 0 1532396 0% /dev
+tmpfs 1542404 440 1541964 1% /dev/shm
+tmpfs 1542404 47500 1494904 4% /run
+/dev/mapper/vg_test-lv_fedora_16 20642428 3610728 16822056 18% /
+tmpfs 1542404 47500 1494904 4% /run
+tmpfs 1542404 0 1542404 0% /sys/fs/cgroup
+tmpfs 1542404 0 1542404 0% /media</screen>
+ <para>
+ By default, this utility shows the partition size in 1 kilobyte blocks and the amount of used and available disk space in kilobytes. To view the information in megabytes and gigabytes, supply the <option>-h</option> command line option, which causes <command>du</command> to display the values in a human-readable format:
+ </para>
+ <screen>~]$ <command>df -h</command>
+Filesystem Size Used Avail Use% Mounted on
+rootfs 20G 3.5G 17G 18% /
+devtmpfs 1.5G 0 1.5G 0% /dev
+tmpfs 1.5G 440K 1.5G 1% /dev/shm
+tmpfs 1.5G 47M 1.5G 4% /run
+/dev/mapper/vg_test-lv_fedora_16 20G 3.5G 17G 18% /
+tmpfs 1.5G 47M 1.5G 4% /run
+tmpfs 1.5G 0 1.5G 0% /sys/fs/cgroup
+tmpfs 1.5G 0 1.5G 0% /media</screen>
+ <indexterm>
+ <primary>system information</primary>
+ <secondary>file systems</secondary>
+ <tertiary><filename>/dev/shm</filename></tertiary>
+ </indexterm>
+ <indexterm>
+ <primary><filename>/dev/shm</filename></primary>
+ </indexterm>
+ <para>
+ Note that the <filename>/dev/shm</filename> entry represents the system's virtual memory file system, <filename>/sys/fs/cgroup</filename> is a cgroup file system, and <filename>/run</filename> contains information about the running system.
+ </para>
+ <para>
+ For a complete list of available command line options, refer to the <emphasis role="bold">df</emphasis>(1) manual page.
+ </para>
+ </section>
+ <section id="s2-sysinfo-filesystems-du">
+ <title>Using the du Command</title>
+ <indexterm>
+ <primary><command>du</command></primary>
+ </indexterm>
+ <para>
+ The <command>du</command> command displays the amount of space being used by files in a directory. When run with no additional command line options, the <command>du</command> command displays the disk usage for each of the subdirectories in the current working directory. For example:
+ </para>
+ <screen>~]$ <command>du</command>
+8 ./.gconf/apps/gnome-terminal/profiles/Default
+12 ./.gconf/apps/gnome-terminal/profiles
+16 ./.gconf/apps/gnome-terminal
+<lineannotation>[output truncated]</lineannotation>
+460 ./.gimp-2.6
+68828 .</screen>
+ <para>
+ By default, <command>du</command> displays the disk usage in kilobytes. To view the information in megabytes and gigabytes, supply the <option>-h</option> command line option, which causes the utility to display the values in a human-readable format:
+ </para>
+ <screen>~]$ <command>du -h</command>
+8.0K ./.gconf/apps/gnome-terminal/profiles/Default
+12K ./.gconf/apps/gnome-terminal/profiles
+16K ./.gconf/apps/gnome-terminal
+<lineannotation>[output truncated]</lineannotation>
+460K ./.gimp-2.6
+68M .</screen>
+ <para>
+ At the end of the list, the <command>du</command> command also shows the grand total for the current directory and subdirectories. If you are only interested in this number, add the <option>-s</option> command line option, for example:
+ </para>
+ <screen>~]$ <command>du -sh</command>
+68M .</screen>
+ <para>
+ For a complete list of available command line options, refer to the <emphasis role="bold">du</emphasis>(1) manual page.
+ </para>
+ </section>
+ <section id="s2-sysinfo-filesystems-system_monitor">
+ <title>Using the System Monitor Tool</title>
+ <indexterm>
+ <primary><command>gnome-system-monitor</command></primary>
+ </indexterm>
+ <indexterm>
+ <primary><application>System Monitor</application></primary>
+ </indexterm>
+ <para>
+ To view the system's partitions and disk space usage in a graphical user interface, use the <guilabel>System Monitor</guilabel> application. To start it, select <menuchoice><guimenu>Applications</guimenu><guimenuitem>System Tools</guimenuitem><guimenuitem>System Monitor</guimenuitem></menuchoice> from the <guimenu>Activities</guimenu> menu, or execute the <command>gnome-system-monitor</command> command at a shell prompt. Then click on the <guilabel>File Systems</guilabel> tab to view the system's partitions.
+ </para>
+ <figure id="fig-sysinfo-filesystems">
+ <title>System Monitor - File Systems</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="images/system-monitor-file-systems.png" format="PNG" scalefit="0" />
+ </imageobject>
+ <textobject>
+ <para>
+ File systems tab of the gnome-system-monitor
+ </para>
+ </textobject>
+ </mediaobject>
+ </figure>
+ </section>
</section>
<section id="s1-sysinfo-hardware">
<title>Viewing Hardware Information</title>
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