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>The SWAPFS file system</TITLE
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>Chapter 19. Mounting and unmounting volumes from within EVMS</TD
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CLASS="sect1"
><H1
CLASS="sect1"
><A
NAME="AEN3863"
></A
>19.3. The SWAPFS file system</H1
><P
>A volume with the SWAPFS file system is not mounted or unmounted.
Rather, swapping is turned on for the volume using the
<B
CLASS="command"
>sbin/swapon</B
> command and turned off using the
&#60;command&#62;sbin/swapoff&#60;/command&#62;. EVMS lets you turn swapping on or off
for a volume from within EVMS without having to go to a separate terminal session.</P
><P
>As with mounting and unmounting, EVMS performs the swapon and swapoff
operations immediately. It does not wait until the changes are saved.</P
><DIV
CLASS="sect2"
><H2
CLASS="sect2"
><A
NAME="AEN3868"
></A
>19.3.1. Turning swap on</H2
><P
>This section tells how to turn swap on using the various EVMS user interfaces.</P
><DIV
CLASS="sect3"
><H3
CLASS="sect3"
><A
NAME="AEN3871"
></A
>19.3.1.1. Using the EVMS GUI</H3
><P
>Follow these steps to turn swap on with the EVMS GUI:
<P
></P
><OL
TYPE="1"
><LI
><P
>Select <SPAN
CLASS="guimenu"
>Actions</SPAN
>-&gt;<SPAN
CLASS="guimenuitem"
>Other</SPAN
>-&gt;<SPAN
CLASS="guimenuitem"
>Volume tasks...</SPAN
>.
</P
></LI
><LI
><P
>Select the volume you want to turn on swapping and click <SPAN
CLASS="guibutton"
>Next</SPAN
>.
</P
></LI
><LI
><P
>Select "Swap on" and click <SPAN
CLASS="guibutton"
>Next</SPAN
>.</P
></LI
><LI
><P
>Select the priority for the swap. If you select "High" you will
get an additional prompt for the priority level.
The priority level must be a number in the range of 0 to 32767.
The default is 0.</P
></LI
><LI
><P
>Click <SPAN
CLASS="guibutton"
>Swap on</SPAN
>.</P
></LI
></OL
>
</P
><P
>Alternatively, you can turn swap on from the EVMS GUI
context-sensitive menu:</P
><P
></P
><OL
TYPE="1"
><LI
><P
>Right click the volume with the SWAPFS you want to turn on.</P
></LI
><LI
><P
>Click <SPAN
CLASS="guimenuitem"
>Swap on...</SPAN
></P
></LI
><LI
><P
>Select the priority for the swap. If you select "High" you will get an
additional prompt for the priority level. The priority level must be a number
in the range of 0 to 32767. The default is 0.</P
></LI
><LI
><P
>&#13; Click <SPAN
CLASS="guibutton"
>Swap on</SPAN
>.</P
></LI
></OL
></DIV
><DIV
CLASS="sect3"
><H3
CLASS="sect3"
><A
NAME="AEN3904"
></A
>19.3.1.2. Using Ncurses</H3
><P
>Follow these steps to turn swap on with Ncurses:
<P
></P
><OL
TYPE="1"
><LI
><P
>Select <SPAN
CLASS="guimenu"
>Actions</SPAN
>-&gt;<SPAN
CLASS="guimenuitem"
>Other</SPAN
>-&gt;<SPAN
CLASS="guimenuitem"
>Volume tasks...</SPAN
>.
</P
></LI
><LI
><P
>Select the volume on which you want to turn on swapping and select
<SPAN
CLASS="guibutton"
>Next</SPAN
>.</P
></LI
><LI
><P
>Select "Swap on" and select <SPAN
CLASS="guibutton"
>Next</SPAN
>.</P
></LI
><LI
><P
>Select the priority for the swap. If you select "High" you will get an
additional prompt for the priority level. The priority level must be a number in
the range of 0 to 32767. The default is 0.</P
></LI
><LI
><P
>Select "Swap on."</P
></LI
></OL
>
</P
><P
>Alternatively, you can turn swap on with the Ncurses
context-sensitive menu:</P
><P
></P
><OL
TYPE="1"
><LI
><P
>Highlight the volume with the SWAPFS you want to turn on.
</P
></LI
><LI
><P
>Select "Swap on...."</P
></LI
><LI
><P
>&#13;Select the priority for the swap. If you select "High" you will get an
additional prompt for the priority level. The priority level must be a number in
the range of 0 to 32767. The default is 0.
</P
></LI
><LI
><P
>Select "Swap on."</P
></LI
></OL
></DIV
><DIV
CLASS="sect3"
><H3
CLASS="sect3"
><A
NAME="AEN3934"
></A
>19.3.1.3. Using the CLI</H3
><P
>To turn swap on with the CLI, use the following command:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="programlisting"
>&#13;Task: swapon, &#60;volume&#62;[, priority=low | , priority=high [level=0..32767]]
</PRE
></FONT
></TD
></TR
></TABLE
><P
>&#60;volume&#62; is the name of the volume with SWAPFS you want to turn on.</P
></DIV
></DIV
><DIV
CLASS="sect2"
><H2
CLASS="sect2"
><A
NAME="AEN3939"
></A
>19.3.2. Turning swap off</H2
><P
>This section tells how to turn swap off using the various EVMS user interfaces.</P
><DIV
CLASS="sect3"
><H3
CLASS="sect3"
><A
NAME="AEN3942"
></A
>19.3.2.1. Using the EVMS GUI</H3
><P
>Follow these steps to turn swap off with the EVMS GUI:
<P
></P
><OL
TYPE="1"
><LI
><P
>Select <SPAN
CLASS="guimenu"
>Actions</SPAN
>-&gt;<SPAN
CLASS="guimenuitem"
>Other</SPAN
>-&gt;<SPAN
CLASS="guimenuitem"
>Volume tasks...</SPAN
>.
</P
></LI
><LI
><P
>Select the volume you want to turn off swapping and click <SPAN
CLASS="guibutton"
>Next</SPAN
>.
</P
></LI
><LI
><P
>Select "Swap off" and click <SPAN
CLASS="guibutton"
>Next</SPAN
>.</P
></LI
><LI
><P
>Click <SPAN
CLASS="guibutton"
>Swap off</SPAN
>.</P
></LI
></OL
>
</P
><P
>Alternatively, you can turn swap off from the EVMS GUI
context-sensitive menu:</P
><P
></P
><OL
TYPE="1"
><LI
><P
>Right click the volume with the SWAPFS you want to turn off.</P
></LI
><LI
><P
>Click <SPAN
CLASS="guimenuitem"
>Swap off...</SPAN
></P
></LI
><LI
><P
>&#13; Click <SPAN
CLASS="guibutton"
>Swap off</SPAN
>.</P
></LI
></OL
></DIV
><DIV
CLASS="sect3"
><H3
CLASS="sect3"
><A
NAME="AEN3971"
></A
>19.3.2.2. Using Ncurses</H3
><P
>Follow these steps to turn swap off with Ncurses:
<P
></P
><OL
TYPE="1"
><LI
><P
>Select <SPAN
CLASS="guimenu"
>Actions</SPAN
>-&gt;<SPAN
CLASS="guimenuitem"
>Other</SPAN
>-&gt;<SPAN
CLASS="guimenuitem"
>Volume tasks...</SPAN
>.
</P
></LI
><LI
><P
>Select the volume on which you want to turn off swapping and select
<SPAN
CLASS="guibutton"
>Next</SPAN
>.</P
></LI
><LI
><P
>Select "Swap off" and select <SPAN
CLASS="guibutton"
>Next</SPAN
>.</P
></LI
><LI
><P
>Select "Swap off."</P
></LI
></OL
>
</P
><P
>Alternatively, you can turn swap on with the Ncurses
context-sensitive menu:</P
><P
></P
><OL
TYPE="1"
><LI
><P
>Highlight the volume with the SWAPFS you want to turn off.
</P
></LI
><LI
><P
>Select "Swap off...."</P
></LI
><LI
><P
>Select "Swap off."</P
></LI
></OL
></DIV
><DIV
CLASS="sect3"
><H3
CLASS="sect3"
><A
NAME="AEN3997"
></A
>19.3.2.3. Using the CLI</H3
><P
>To turn swap on with the CLI, use the following command:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="programlisting"
>&#13;Task: swapoff, &#60;volume&#62;
</PRE
></FONT
></TD
></TR
></TABLE
><P
>&#60;volume&#62; is the name of the volume with SWAPFS you want to turn off.</P
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