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From: TOMITA Yoshinori <yoshin-t@jp.fujitsu.com>
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$BIYED$G$9!#(B


Hiroki Kashiwazaki wrote:

> 
> $B$A$J$_$K(B smartctl $B$N7k2L$G$9$,!$(B
> 
>   3 Spin_Up_Time            0x0027   187   187   021    Pre-fail  Always       -
>        5633
> 
> $B$3$l$H$+!$(B
> 
> 193 Load_Cycle_Count        0x0032   185   185   000    Old_age   Always       -
>        45315
> 
> $B$3$l$H$+$NCM$,!$%M%C%H$GD4$Y$k(B smartctl -a $B$N7k2L$HHf$Y$k$HHf3SE*(B
> $BBg$-$$5$$,$9$k$N$G$9$,!$$I$&$J$s$G$7$g$&$M!%$"$H(B TYPE $B$,(B Pre-fail
> $B$+(B Old_age $B$P$C$+$j$H$$$&$N$OIaDL$=$&$G$7$?$C$1!%(B
> 
>   9 Power_On_Hours          0x0032   100   100   000    Old_age   Always       -
>        549
> 
> $B$@$H$$$&$N$K!D!%(B
> 


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$B$7$g$&$+!)(B

$B%G%#%9%/$X$N%"%/%;%9$,$J$$$^$^(B8$BIC7P2a$9$k$H!"%X%C%I$,%Q!<%-%s%0$5$l$F!"(B
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$B:#G/$N(B1$B7n!"(Bfreebsd-stable$B%a!<%j%s%0%j%9%H$G$bOCBj$,=P$F$$$^$7$?!#(B

immense delayed write to file system (ZFS and UFS2), performance issues
http://lists.freebsd.org/pipermail/freebsd-stable/2010-January/thread.html#54185
http://lists.freebsd.org/pipermail/freebsd-stable/2010-January/054187.html
