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From: Kawaguti Ginga <ginga-freebsd@ginganet.org>
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References: <20040423120900.GA979%ginga-freebsd@ginganet.org> <200405021416.i42EGL5b032162@fifthluna.nokubi.or.jp> <20040503.005734.74756782.yoshiaki@kt.rim.or.jp> <20040423120900.GA979%ginga-freebsd@ginganet.org> <200405021416.i42EGL5b032162@fifthluna.nokubi.or.jp>
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Date: Wed, 5 May 2004 10:14:47 +0900
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Subject: [FreeBSD-users-jp 79252] Re: tunefs: free space percentage
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$B@n8}$G$9(B

In Sun, May 02, 2004 at 11:15:33PM +0900,
NOKUBI Hirotaka <h-nokubi@nokubi.dyndns.org> wrote:
> >DVD-RAM $B$G(B newfs $B$7$?;~$O(B($B85!9%Q%U%)!<%^%s%9$b$X$C$?$/$l$b$J$$$N$G(B)
> >2% $B$K$7$F$^$9!%(B
> >0% $B$G$b$$$$$h$&$J5$$b$7$^$9$,!$3'MM$O$I$s$J46$8$G;H$o$l$F$$$k$N$G$7$g$&(B?
> 
> 0% $B$G;H$C$F$^$9!#$"$HHy!9$?$k$b$N$G$9$,(B i-node $B$b$G$-$k$@$1(B
> $B8:$i$7$FMFNLM%@h!#(B

$B$J$k$[$I!%$I$&$;!$:Y$+$$%U%!%$%k$r$S$7$S$7J|$j9~$`$s$G$J$1$l$P(B
i-node $B$bM^@)$7$A$c$C$F$$$$$o$1$G$9$M!%(B

> ># FAT format $B$G$-$l$P(B windows $B$H$b8_49$,$H$l$k$s$G$9$1$I$M$'!%(B
> 
> $B$$$^$5$i(B FAT $B$G$b$J$$$+$J$H!#(B
> UDF $B$,$$$$$G$9(B :-)

4-stable $B$,<gNO$J$b$N$G(B...

UDF $B$OFI$_=q$-$K;H$($k$s$G$7$g$&$+(B?
$B$"$H!$(B5-current $B$G$b(B UDF $B$r(B "$BAO$k(B" $B$3$H$C$F$G$-$J$$$G$9$h$M(B?
man -k udf $B$G(B mount_udf $B$7$+=P$F$3$J$$$7(B...

> $B$&$A$O",$3$l$H$b>/$70c$C$F$$$F4pK\E*$K(B atapicam $B7PM3$G$J$$$H$&$^$/(B
> $B$$$+$J$$$G$9!#%+!<%M%k$O(B 5.1-RELEASE$B!"%f!<%6!<%i%s%I$O(B 5.0-stable $B$N(B
> $B$I$C$+$H$$$&H>C<$JAH$_9g$o$;$N$;$$(B?

$B<j85$O(B
FreeBSD 4.10-BETA #10: Sun Apr 18 21:43:29 JST 2004 $B$G(B
<MATSHITA DVD-RAM LF-D310 A121> $B$J$s$G$9$,!$(B
newfs $B$O(B acd $BB&(B(ATAPI)$B!$(Btunefs -m $B$O(B cd$BB&(B(atapicam$B7PM3(B)
$B$8$c$J$$$HF0$+$J$$$H$$$&$+$J$jJQBV$J>u67$G$9!%(B

# newfs -m 0 /dev/cd1a
newfs: /dev/cd1a: `a' partition is unavailable
# 

# $B$b$C$H$b!$$3$N%I%i%$%V$O0JA0$O(B dvd+rw-tools $B$G(B DVD-R $B$,(B
# $B>F$1$F$$$?$N$K:G6a$O(B DVD-R $B$K4X$7$F$O>F$1$?$?$a$7$,$J$$$N$G(B
# $B%I%i%$%V$,2u$l$+$1$F$$$k$H$$$&2DG=@-$bH]Dj$G$-$^$;$s$,!%(B

In Mon, May 03, 2004 at 12:57:34AM +0900,
Yoshiaki Uchikawa <yoshiaki@kt.rim.or.jp> wrote:
> $B$&$A$N4D6-$O(B
> 
> FreeBSD 5.2-CURRENT #1: Wed Apr 28 23:18:17 JST 2004
> 
> acd0: DVDR <HL-DT-ST DVDRAM GSA-4040B> at ata1-slave UDMA33
> cd0 at ata1 bus 0 target 1 lun 0
> cd0: <HL-DT-ST DVDRAM GSA-4040B A112> Removable CD-ROM SCSI-0 device 
> 
> $B$H$$$&46$8$G>e5-$+$i$o$+$k$h$&$K(Batapicam$B$rF~$l$?%+!<%M%k$K$7$F$$$^$9$,(B
> $B$H$j$"$($:(B/dev/acd0$B$KBP$7$F(Bnewfs$B$7$F$bF1$8$h$&$KF0$-$^$9$7!"(B
> 
> # tunefs -p /dev/acd0a
>  <$BCfN,(B>
> tunefs: minimum percentage of free space: (-m)             8%
>  :
> 
> # tunefs -m 2  /dev/acd0a
> tunefs: minimum percentage of free space changes from 8% to 2%
> tunefs: should optimize for space with minfree < 8%
> # tunefs -p /dev/acd0a
>  <$BCfN,(B>
> tunefs: minimum percentage of free space: (-m)             2%
>  :
> 
> $B$H$$$&$h$&$KM-8z$J$h$&$G$9!#(B
> $B!t2?$+4*0c$$$7$F$$$k$N$+$7$i$s(B?

$B5$$K$+$1$FD:$$$?>l=j<+BN$O4*0c$$$G$O$J$$$G$9!%(B
$B;d$,8@$C$F$$$kFbMF$,4*0c$$@#A0$_$?$$$JDAL/$J$3$H$J$b$N$G!%(B

$B$A$J$_$K!$<j85$N(B tunefs $B$,(B atapicam $B$8$c$J$$$H%@%a!$$H$$$&$N$O(B
# tunefs -m 2 /dev/cd1c		(atapicam $B7PM3$J$i(B OK)
tunefs: minimum percentage of free space changes from 0% to 2%
# tunefs -m 0 /dev/acd0c	(acd $B$rC!$/$HJ86g$r8@$o$l$^$9(B)
tunefs: minimum percentage of free space changes from 2% to 0%
tunefs: cannot open /dev/acd0c: Device busy
# 

$B$J$s$+0JA0!$(Batapicam $B$,(B acd $B$rFI$s$G$$$k%W%m%;%907$$(B(?)$B$G(B
$BFI$s$G$$$k?M%+%&%s%H(B(?)$B$,(B1$B$D>e$,$C$F$7$^$C$F$$$k$s$8$c$J$$$+!$(B
$B$H$$$&$h$&$JOC$,$"$C$F4X78$9$k$N$+$H;W$C$F$$$?$s$G$9$,!$(B
$BLdBj$J$$$3$H$b$"$k$N$G$9$M(B... 
$B$C$F!$$3$N7o$K4X$7$F$O$b$7$+$7$F(B 5-current $B$K$7$J$$$H$$$1$J$$$N$+(B?
-- 
       $B"J"J(B
Zzz.. (- - )$B"^"^"=!A(B           $B@n8}(B $B6d2O(B
      ##############   ginga-freebsd@ginganet.org
