<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <HTML> <HEAD> <META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9"> <TITLE>Logical Volume Manager HOWTO: $B3N<B$J%P%C%/%"%C%W$r9T$&$K$O!"%9%J%C%W%7%g%C%H$r<h$k(B</TITLE> <LINK HREF="LVM-HOWTO-8.html" REL=next> <LINK HREF="LVM-HOWTO-6.html" REL=previous> <LINK HREF="LVM-HOWTO.html#toc7" REL=contents> </HEAD> <BODY> <A HREF="LVM-HOWTO-8.html">$B<!$N%Z!<%8(B</A> <A HREF="LVM-HOWTO-6.html">$BA0$N%Z!<%8(B</A> <A HREF="LVM-HOWTO.html#toc7">$BL\<!$X(B</A> <HR> <H2><A NAME="s7">7. $B3N<B$J%P%C%/%"%C%W$r9T$&$K$O!"%9%J%C%W%7%g%C%H$r<h$k(B</A></H2> <P>$B$3$3$K$"$2$k$N$O!"K\Ev$K5/$3$k$+$I$&$+$b5?$o$7$$Nc$N(B 1 $B$D$G$9!#$?$H$($P(B $BMM!9$J=hM}$r<!!9$3$J$7$F$$$k%5!<%P$r1?MQ$7$F$$$k$H$7$^$9!#M-8z$J%P%C%/(B $B%"%C%W$H$$$&E@$+$i$9$k$H!"2TF/Cf$N$"$i$f$k%W%m%0%i%`$rMn$H$9I,MW$,$"$j$^$9!#(B $B$=$&$7$J$$$H!"%7%9%F%`$,IT@09g$J>uBV$K4Y$C$F$7$^$&$+$i$G$9!#(B <P>$BE57?E*$JNc$H$7$F!"$"$k%U%!%$%k$r(B /tmp $B$+$i(B /root $B$K0\$9>l9g$r8+$F$_$^$9!#(B /root $B$,$^$:%P%C%/%"%C%W$5$l$F$$$^$7$?!#(B/root $B$r8+$?;~!"$^$@$=$N%U%!%$%k$O(B $B$"$j$^$;$s$G$7$?!#$=$N;~$^$G$K(B /tmp $B$,%P%C%/%"%C%W$,40N;$7$^$7$?$,!"%U%!%$(B $B%k$O0\F0$7$?8e$G$7$?!#(B <P>$B%G!<%?%Y!<%9$d%G%#%l%/%H%j$NJ]B8$G$O>u67$,JQ$o$j$^$9!#%"%W%j%1!<%7%g%s$r(B $B$-$A$s$HMn$H$95!2q$,$J$$$H!"%U%!%$%k$,%P%C%/%"%C%W2DG=$J>uBV$K$J$k$-$C$+$1(B $B$,F@$i$l$^$;$s!#(B <P>$BJL$NLdBj$b=P$F$-$^$9!#IaDL$O%"%W%j%1!<%7%g%s$rMn$7!"%P%C%/%"%C%W$r$H$C$F$+$i!"(B $B:F5/F0$r$+$1$^$9!#$3$l$O%P%C%/%"%C%W$,?tJ,$G<h$j=*$($l$P$^$C$?$/LdBj$K$J$j$^(B $B$;$s$,!"?t;~4V$+$+$C$?$j!"$$$D=*$k$H$b$o$+$i$J$$$J$i!"%@%a!<%8$r$3$&$`$k$3$H(B $B$K$J$j$^$9!#(B <P>LVM $B$G$3$N>u67$r5_$$$^$7$g$&!#(B <P>LVM $B$r;H$($P!"$=$N;~!9$NO@M}%\%j%e!<%`$N>u67$r%9%J%C%W%7%g%C%H$K$H$k$3$H(B $B$,$G$-!"$=$l$r%^%&%s%H$7$?$j!"%P%C%/%"%C%W$r$H$k$3$H$b$G$-$^$9!#(B <P>$B;n$7$F$_$^$7$g$&!#(B <P> <BLOCKQUOTE><CODE> <PRE> # mount /dev/test/HOWTO /mnt # echo > /mnt/a.test.file # ls /mnt/ a.test.file lost+found # ls -l /mnt/ total 13 -rw-r--r-- 1 root root 1 Apr 2 00:28 a.test.file drwxr-xr-x 2 root root 12288 Apr 2 00:28 lost+found </PRE> </CODE></BLOCKQUOTE> <P>$B$3$l$G!"BP>]$H$J$k%U%!%$%k$,$G$-$^$7$?!#%9%J%C%W%7%g%C%H$r:n$C$F$_$^$7$g$&!#(B <P> <BLOCKQUOTE><CODE> <PRE> # lvcreate --size 16m --snapshot --name snap /dev/test/HOWTO lvcreate -- WARNING: all snapshots will be disabled if more than 16 MB are changed lvcreate -- INFO: using default snapshot chunk size of 64 KB lvcreate -- doing automatic backup of "test" lvcreate -- logical volume "/dev/test/HOWTO" successfully created </PRE> </CODE></BLOCKQUOTE> <P>$B!V(B--size$B!W%Q%i%a%?$K$D$$$F$O8e$G>\$7$/?($l$^$9!#%9%J%C%W%7%g%C%H$r%^%&%s%H(B $B$7$F$_$^$9!#(B <P> <BLOCKQUOTE><CODE> <PRE> # mount /dev/test/snap /snap # ls /snap total 13 -rw-r--r-- 1 root root 1 Apr 2 00:28 a.test.file drwxr-xr-x 2 root root 12288 Apr 2 00:28 lost+found </PRE> </CODE></BLOCKQUOTE> $B85$N0LCV$+$i(B a.test.file $B$r:o=|$7$F!"$^$@%9%J%C%W%7%g%C%H$N>l=j$KB8:_$9$k(B $B$+$r%A%'%C%/$7$F$_$F$/$@$5$$!#(B <BLOCKQUOTE><CODE> <PRE> # rm /mnt/a.test.file # ls /snap total 13 -rw-r--r-- 1 root root 1 Apr 2 00:28 a.test.file drwxr-xr-x 2 root root 12288 Apr 2 00:28 lost+found </PRE> </CODE></BLOCKQUOTE> <P>$B$3$l$O$9$4$$!*(B <P> <H2><A NAME="ss7.1">7.1 $B$I$N$h$&$KF/$/!)(B</A> </H2> <P>$B!V(B--size$B!W%Q%i%a%?$r@_Dj$7$J$1$l$P$J$i$J$+$C$?$3$H$r$*$\$($F$$$^$9$+!)(B $B!V(Bsnap$B!W%\%j%e!<%`$O!"%V%m%C%/$b$7$/$O!V%A%c%s%/!W$N$9$Y$F$N%3%T!<$r(B LVM $B$,(B $BI,MW$H$9$k;~!"$D$^$j85%G!<%?$,JQ99$5$l$F$7$^$C$?;~$K$J$1$l$P$$$1$^$;$s!#(B <P><B>$BLuCp!'(B</B>$B%A%c%s%/(B(chunk)$B$H$O!"$"$k%G!<%?9=B$$r$$$/$D$+$K$^$H$a$?C10L$r(B $BI=$7$^$9!#$3$N>l9g$O!"%G%#%9%/>e$GJ*M}E*$KO"B3$7$F$$$k(B LVM $B$,MxMQ2DG=$J:G>.(B $BC10L$r0UL#$7$F$$$^$9!#(B <P>a.test.file $B$r:o=|$7$?;~!"$=$N(B inode $B$O:o=|$5$l$^$9!#$9$k$H(B 64 KB $BJ,(B($B%A%c%s%/(B $B$NBg$-$5(B)$B$,!V%@!<%F%#!<(B(dirty)$B$J!W>uBV$H$7$F%^!<%/$5$l!"85%G!<%?$N%3%T!<$,(B $B!V(Bsnap$B!W%\%j%e!<%`$K=q$+$l$^$9!#$3$N>l9g$G$9$H!"%9%J%C%W%7%g%C%H$H$7$F(B 16 MB $B3NJ]$7$F$"$j$^$9$+$i!"(B 16 MB $B0J>e$N!V%A%c%s%/!W$,JQ99$5$l$k$H!"%9%J%C%W(B $B%7%g%C%H$O5!G=$7$J$/$J$k$G$7$g$&!#(B <P>$B%9%J%C%W%7%g%C%H$N%Q!<%F%#%7%g%s$NBg$-$5$r4V0c$$$J$/7h$a$k$K$O!"O@M}%\%j%e!<%`(B $BK\Mh$N;H$o$lJ}$r9MN8$7$F!"%9%J%C%W%7%g%C%H$r%"%/%F%#%V$K$9$k;~4V$r?dB,$9$k$7$+(B $B$"$j$^$;$s!#$?$H$($P!"??LkCf$KC/$bMxMQ$7$F$$$J$$%7%9%F%`$r?t;~4V$+$1$F%P%C%/(B $B%"%C%W$9$k$J$i!"$4$/$o$:$+$J6u$-$7$+I,MW$J$$$H;W$$$^$9!#(B <P>$BCm0U$7$FM_$7$$$N$O!"%9%J%C%W%7%g%C%H$O$:$C$HB8:_$9$k$b$N$G$O$J$$!"$H$$$&$3$H(B $B$G$9!#(BLVM $B$rMn$7$?$j!"%j%V!<%H$7$?$j$9$l$P!"%9%J%C%W%7%g%C%H$O>C$($F$7$^$$!"(B $B:F:n@.$9$k$3$H$K$J$j$^$9!#(B <P> <HR> <A HREF="LVM-HOWTO-8.html">$B<!$N%Z!<%8(B</A> <A HREF="LVM-HOWTO-6.html">$BA0$N%Z!<%8(B</A> <A HREF="LVM-HOWTO.html#toc7">$BL\<!$X(B</A> </BODY> </HTML>
