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In-reply-to: Your message of Thu, 03 Apr 97 14:37:48 JST.
             <17215.860045868@sat.t.u-tokyo.ac.jp> 
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Date: Thu, 03 Apr 1997 14:52:41 +0900
From: Akihiro Hirano <hirano@dsp.cl.nec.co.jp>
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Subject: [FreeBSD-users-jp 11400] Re: ccd config (Re: [Q] DIGITAL Venturis FXs 5200 ) 
Errors-To: owner-FreeBSD-users-jp@jp.freebsd.org
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> hirano> >   $B$3$N>l9g!"(Bccd $B$N(B configuration $B$O(B striping$B$K$7$F$^$9!)(B
> hirano> > $B$=$l$H$b(B concatinating$B!)(B
> 
> hirano> # ccd           ileave  flags   component devices
> hirano> #
> hirano> ccd0            65536   none    /dev/sd4s1e /dev/sd5s1e /dev/sd6s1e
> hirano> 
> hirano> $B$GEz$K$J$C$F$^$9!)(B
> 
> ileave$B$r(B0$B$K$9$k$H(Bconcatinating$B$K$J$k$_$?$$$G$9$M(B.

$B!!$J$k$[$I!#(Bman ccd$B$9$k$H!"(B

     For random-access oriented workloads, such as news servers, a larger in-
     terleave factor (e.g., 65,536) is more desirable.

$B$H=q$$$F$"$j$^$7$?$N$G!"C1=c$K$3$l$K=>$C$F$$$^$9!#(B

> hirano> $B!!$"$H$O!"%K%e!<%9%9%W!<%k$r(Basync$B$G%^%&%s%H$9$k$N$,%3%D$N$h$&$G$9!#5-(B
> hirano> $B;v$N<u$1<h$j@-G=$K!"AjEv8z$-$^$9(B ($B0l7e0c$&(B)$B!#$?$@$7!"%Q%K%C%/$J$I$7$?(B
> 
> $B$5$i$K(B, noatime $B$G(Bmount$B$9$k$HNI$$$H$$$&OC$r$h$/J9$-$^$9$,(B,
> $B$d$C$F$_$^$;$s$+(B? ^^;

$B!!$3$l$G$9$M!)(B

             noatime
                     Do not update the file access time when reading from a
                     file. This option is useful on filesystems where there
                     are large numbers of files and performance is more criti-
                     cal than updating the file access time (which is rarely
                     ever important). This option is currently only supported
                     on local filesystems.

$B3N$+$K!"%K%e!<%9%9%W!<%k$G(B file access time $B$r??LLL\$K99?7$7$F$b!"$"$^(B
$B$j0UL#$O$J$5$=$&$G$9$M!#$=$l$h$j$O!"%"%/%;%9$,B.$$J}$,4r$7$$!#$H$3$m$G!"(B
$B$3$N%*%W%7%g%s$O!"(B2.1.7.1R$B$G$b;H$($k$N$G$7$g$&$+!)(B2.1.7R$B$G(Bman mount$B$7(B
$B$F$b=P$FMh$J$$$N$G$9$,!D(B
----
$BF|K\EE5$(B($B3t(B)$B>pJs%a%G%#%"8&5f=j!!J?Ln989((B
E-mail : hirano@dsp.CL.nec.co.jp
