501 lines
6.7 KiB
HTML
501 lines
6.7 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML
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><HEAD
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><TITLE
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>Example: shrink a volume</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="EVMS User Guide"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="Expanding and shrinking volumes"
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HREF="expandshrink.html"><LINK
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REL="PREVIOUS"
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TITLE="Why expand and shrink volumes?"
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HREF="whyexpandshrink.html"><LINK
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REL="NEXT"
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TITLE="Example: expand a volume"
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HREF="mkfs.html"></HEAD
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><BODY
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CLASS="sect1"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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VLINK="#840084"
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><DIV
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SUMMARY="Header navigation table"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>EVMS User Guide</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="whyexpandshrink.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Chapter 16. Expanding and shrinking volumes</TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="mkfs.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="sect1"
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><H1
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CLASS="sect1"
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><A
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NAME="exshrink"
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></A
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>16.2. Example: shrink a volume</H1
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><P
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>This section tells how to shrink a compatibility volume by 500 MB.</P
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><A
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NAME="AEN3185"
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></A
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><BLOCKQUOTE
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CLASS="BLOCKQUOTE"
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><DIV
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CLASS="example"
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><A
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NAME="AEN3186"
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></A
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><P
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><B
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>Example 16-1. Shrink a volume</B
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></P
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><P
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>Shrink the volume
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<TT
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CLASS="filename"
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>/dev/evms/lvm/Sample Container/Sample Region</TT
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>, which
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is the compatibility volume that was created in the chapter entitled
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"Creating Volumes," by 500 MB.</P
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></DIV
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></BLOCKQUOTE
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><DIV
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CLASS="sect2"
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><H2
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CLASS="sect2"
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><A
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NAME="shrinkgui"
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></A
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>16.2.1. Using the EVMS GUI</H2
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><P
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>Follow these steps to shrink the volume with the EVMS GUI:
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<P
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></P
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><OL
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TYPE="1"
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><LI
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><P
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>Select <SPAN
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CLASS="guimenu"
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>Actions</SPAN
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>-><SPAN
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CLASS="guimenuitem"
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>Shrink</SPAN
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>-><SPAN
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CLASS="guimenuitem"
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>Volume...</SPAN
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></P
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></LI
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><LI
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><P
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>Select <SPAN
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CLASS="guimenu"
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>/dev/evms/lvm/Sample Container/Sample Region</SPAN
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>
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from the list of volumes.
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</P
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></LI
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><LI
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><P
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>Click <SPAN
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CLASS="guibutton"
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>Next</SPAN
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>.
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</P
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></LI
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><LI
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><P
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>Select <SPAN
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CLASS="guimenu"
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>/lvm/Sample Container/Sample Region</SPAN
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> from the list of volumes.
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</P
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></LI
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><LI
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><P
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>Click <SPAN
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CLASS="guibutton"
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>Next</SPAN
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>.
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</P
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></LI
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><LI
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><P
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>Enter <TT
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CLASS="userinput"
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><B
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>500MB</B
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></TT
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> in the "Shrink by Size" field.</P
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></LI
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><LI
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><P
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>Click <SPAN
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CLASS="guibutton"
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>Shrink</SPAN
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>.</P
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></LI
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></OL
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>
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</P
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><P
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>Alternatively, you can perform some of the steps to shrink the volume with the GUI
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context sensitive menu:</P
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><P
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></P
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><OL
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TYPE="1"
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><LI
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><P
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>From the <SPAN
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CLASS="guimenuitem"
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>Volumes</SPAN
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> tab, right click
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<TT
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CLASS="filename"
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>/dev/evms/lvm/Sample Container/Sample Region</TT
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></P
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></LI
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><LI
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><P
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>Click <SPAN
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CLASS="guimenuitem"
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>Shrink...</SPAN
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></P
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></LI
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><LI
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><P
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>Continue the operation beginning with step 3 of the GUI
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instructions.</P
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></LI
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></OL
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></DIV
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><DIV
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CLASS="sect2"
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><H2
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CLASS="sect2"
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><A
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NAME="shrinkncurses"
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></A
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>16.2.2. Using Ncurses</H2
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><P
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>Follow these steps to shrink a volume with Ncurses:
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<P
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></P
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><OL
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TYPE="1"
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><LI
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><P
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>Select <SPAN
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CLASS="guimenu"
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>Actions</SPAN
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>-><SPAN
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CLASS="guimenuitem"
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>Shrink</SPAN
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>-><SPAN
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CLASS="guimenuitem"
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>Volume</SPAN
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>.
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</P
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></LI
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><LI
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><P
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>Select
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<SPAN
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CLASS="guimenuitem"
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>/dev/evms/lvm/Sample Container/Sample Region</SPAN
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> from the
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list of volumes.
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</P
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></LI
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><LI
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><P
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>Activate <SPAN
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CLASS="guibutton"
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>Next</SPAN
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>.
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</P
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></LI
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><LI
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><P
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>Select
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<SPAN
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CLASS="guimenuitem"
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>lvm/Sample Container/Sample Region</SPAN
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> from the
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shrink point selection list.
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</P
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></LI
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><LI
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><P
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>Activate <SPAN
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CLASS="guibutton"
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>Next</SPAN
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>.
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</P
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></LI
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><LI
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><P
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>Scroll down using the <B
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CLASS="keycap"
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>down</B
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> arrow until
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<SPAN
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CLASS="guimenuitem"
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>Shrink by Size</SPAN
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> is highlighted.
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</P
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></LI
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><LI
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><P
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>Press <B
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CLASS="keycap"
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>spacebar</B
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>.
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</P
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></LI
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><LI
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><P
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>Press <B
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CLASS="keycap"
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>Enter</B
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>.
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</P
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></LI
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><LI
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><P
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>At the "::" prompt enter <TT
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CLASS="userinput"
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><B
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>500MB</B
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></TT
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>.
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</P
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></LI
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><LI
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><P
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>Press <B
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CLASS="keycap"
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>Enter</B
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>.
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</P
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></LI
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><LI
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><P
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>Activate <SPAN
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CLASS="guibutton"
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>Shrink</SPAN
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>.
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</P
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></LI
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></OL
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>
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</P
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><P
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> Alternatively, you can perform some of the steps to shrink the volume with the
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context sensitive menu:</P
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><P
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></P
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><OL
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TYPE="1"
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><LI
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><P
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>From the Volumes view, press <B
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CLASS="keycap"
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>Enter</B
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> on <TT
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CLASS="filename"
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>/dev/evms/lvm/Sample Container/Sample Region</TT
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>.</P
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></LI
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><LI
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><P
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>Activate the <SPAN
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CLASS="guimenuitem"
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>Shrink</SPAN
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> menu item.</P
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></LI
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><LI
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><P
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>Continue the operation beginning with step 3 of the Ncurses instructions.</P
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></LI
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></OL
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></DIV
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><DIV
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CLASS="sect2"
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><H2
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CLASS="sect2"
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><A
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NAME="shrinkcli"
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></A
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>16.2.3. Using the CLI</H2
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><P
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>The <B
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CLASS="command"
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>shrink</B
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> command takes a shrink point followed by an optional name
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value pair or an optional shrink object. To find the shrink point, use the <B
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CLASS="command"
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>query</B
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> command with the shrink points filter on the object or volume you plan to shrink. For example:</P
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><TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="programlisting"
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>query: shrink points, "/dev/evms/lvm/Sample Container/Sample Region"</PRE
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></FONT
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></TD
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></TR
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></TABLE
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><P
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>Use a list options filter on the object of the shrink point to determine the name-value pair to use, as follows:</P
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><TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="programlisting"
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>query: objects, object="lvm/Sample Container/Sample Region", list options</PRE
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></FONT
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></TD
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></TR
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></TABLE
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><P
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>With the option information that is returned, you can construct the command, as follows:</P
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><TABLE
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BORDER="0"
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BGCOLOR="#E0E0E0"
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WIDTH="100%"
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><TR
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="programlisting"
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>shrink: "lvm/Sample Container/Sample Region", remove_size=500MB</PRE
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></FONT
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></TD
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></TR
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></TABLE
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></DIV
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="whyexpandshrink.html"
|
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ACCESSKEY="P"
|
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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ACCESSKEY="H"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="mkfs.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
|
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>Why expand and shrink volumes?</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="expandshrink.html"
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ACCESSKEY="U"
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>Up</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>Example: expand a volume</TD
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></TR
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></TABLE
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