From owner-FreeBSD-users-jp@jp.freebsd.org  Thu Nov 20 15:28:00 1997
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Date: Thu, 20 Nov 1997 15:27:34 +0900 (JST)
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To: FreeBSD-users-jp@jp.freebsd.org
In-Reply-To: Your message of "Thu, 20 Nov 1997 13:55:37 +0900".
	<199711200455.NAA06713@cicgw.cic-kk.co.jp>
From: hojo@cec.co.jp (Hiroshi Hojo)
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Subject: [FreeBSD-users-jp 21006] Re: reorder file system 
Errors-To: owner-FreeBSD-users-jp@jp.freebsd.org
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$B$($C$H!"KL>r(B@$BCf1{EE;R$H?=$7$^$9!#(B

$B$9$$$^$;$s!"2#$+$i<:Ni$7$^$9!#(B

<199711200455.NAA06713@cicgw.cic-kk.co.jp> kgotoh@cic-kk.co.jp $B$5$^$C(B writes.
> >>>>> On Thu, 20 Nov 1997 13:33:44 +0900, hirano@ccm.cl.nec.co.jp said:
> 
> > $B!!(BWindows$B$N%G%U%i%0$H$O4X78$J$+$C$?$G$9$,!"(Bi-node$B$G$b$J$$$G$9!#(Bi-node
> > $B$J$s$F!"4{$K(B **$B:GBgCM(B** $B$K$J$C$F$?!#(Bfragment$B$,A}$($9$.$F!D$@$C$?$N$G$9!#(B
> $B$X$'!"(BUNIX $B7O$G$=$&$$$&;v$,5/$-$k(B OS $B$,$"$C$?$N$G$9$+!D(B ^^;
> $B%U%!%$%k%7%9%F%`4IM}$,$^$C$?$/0c$&$N$+!";d$,%U%!%$%k%7%9%F%`4IM}$r(B
> $B2?$G$=$&$$$&;v$,5/$-$k$N$@$m$&!)(B

  $B$*$=$i$/(B ffs(fast file system) $B$G$O$J$/!"(BUNIX V7 $B$r4pK\(B
$B$K$7$?(B filesystem $B$r:NMQ$7$F$$$?$N$G$7$g$&!#(BSVR2 $B$G$O(B
$B>/$J$/$H$b%G%#%9%H%j%S%e!<%7%g%s$K(B ffs $B$O4^$^$l$F$$$^$;$s$G$7$?!#(B
$B$^$"!"3F<R$GFH<+$K<BAu$7$?Nc$O$"$k$+$bCN$l$^$;$s$,!#(B

V7 $B$N(B free block $B4IM}$O$[$H$s$I$J$s$K$b9M$($F$$$J$+$C$?$N$G!"(B
$B$J$k$Y$/O"B3@-$N9b$$(B block $B$rA*$V$H$+!"$G$-$k$@$16aK5$N(B
free block $B$+$i3d$jIU$1$k$H$+$$$&=hM}$O9T$$$^$;$s$G$7$?!#(B
$B$[$+$K$b(B

	+ $BO@M}%V%m%C%/$N4IM}C10L$,(B 512byte $B$J$N$G!"B.EY$,$G$J$$!#(B
	+ $B%9!<%Q%V%m%C%/$H(B i-node $B4IM}NN0h$,@hF,$K$7$+$J$$$N$G!"(B
	  seek $B$,IQHK$KH/@8$9$k!#$=$N>e$3$3$,GK2u$5$l$k$H!"(B
	  $B%U%!%$%k%7%9%F%`$NI|5l$O6K$a$F:$Fq!#(B
	+ $B%U%!%$%kL>$,:GBg(B 14 $BJ8;z$^$G$7$+5v$5$l$J$$!#(B

$B$J$I$H$$$C$?LdBj$r$+$+$($F$$$^$7$?!#(B

  SystemIII $B$G%V%m%C%/%5%$%:$O2DJQ(B(512 - 4096 byte $B$@$C$?$H(B
$B;W$$$^$9(B)$B$G$-$k$h$&$KJQ99$5$l$^$7$?$,!"(Bfree block $B$N@oN,$H(B
$B9=B$E*$JLdBj$O2r7h$5$l$F$$$J$+$C$?$O$:$G$9!#$7$+$b(B fragment
$B$NBP:v$,$J$5$l$F$$$J$$$N$G!"(B4096 byte/block $B$G%U%!%$%k%7%9%F%`(B
$B$r:n@.$7$?$j$9$k$H!"B.EY$O2~A1$5$l$k$b$N$N!"5U$K$"$C$H$$$&(B
$B4V$K(B free $B$,$J$/$J$C$F$7$^$&$H$$$&$b$N$G$7$?!#(B

  $B$G!"$3$l$i$NLdBj$r0l5$$K2r7h$9$k$?$a$K!"(B4.2BSD $B$G(B ffs 
$B$,<BAu$5$l$?$N$@$HM}2r$7$F$$$^$9!#(B

# $B$&$&$`!"$^$k$C$-$7G/4s$N@NOC!D!D(B(^^;)
--
hojo@cec.co.jp
