md ǥХġϼξˤޤ

   http://www.<country>.kernel.org/pub/linux/utils/raid/....



Υͥ륳ޥɤǡmd ǥХ֡Ȥ뤳ȤǤޤ

  ³Ūѡ֥åΤʤŤ RAID 쥤ξ硧
    md=<md ǥХֹ>,<RAID ٥>,<󥯥>,<եȥ٥>,dev0,dev1,...,devn

  ³Ūѡ֥åΤ RAID 쥤ξ硧
    md=<md ǥХֹ>,dev0,dev1,...,devn

    <md ǥХֹ>
        0  md0 ̣ޤʲ
        1  md1,
        2  md2,
        3  md3,
        4  md4

    <RAID ٥>
        -1 ϥ˥⡼
         0 ϥȥ饤ץ⡼
        ¾Υ⡼ɤϡ³Ūѡ֥åΤߥݡȤޤ

    <󥯥> (RAID-0  RAID-1 Τ)
        4K << n ǥ󥯥Ȥʤ褦˥åȤƤ

    <եȥ٥>
        ̵뤵ޤ

    dev0-devn
        : /dev/hda1,/dev/hdc1,/dev/sda1,/dev/sdb1

loadlin Υޥɥ饤 (Harald Hoyer <HarryH@Royal.Net>) ϡΤ褦
ʤǤ礦

    e:\loadlin\loadlin e:\zimage root=/dev/md0 md=0,0,4,0,/dev/hdb2,/dev/hdc3 ro


-------------------------------
md ɥ饤Фϡ¿¿ͤʰۤʤ륹ѡ֥åեޥåȤ򥵥ݡ
Ǥޤ (ޤäƤϤޤ󤬡Ǥޤ)

ͥϡѡ֥åǤɤΥեޥåȤȤƤ뤫ưФ
*ޤ*Ƥɬפޤ

ΤλΤᡢѡ֥åեޥå '0' ϡ¾ΤΤȤ
ۤʤ밷򤷤ޤ


Ūʵ§ - ƤΥѡ֥åեޥåȤŬ
---------------------------------------------------------

쥤ϡƤΥǥХŬڤʥѡ֥å񤭹ळȤˤֺ
ޤס md ۥǥХȡγƥǥХϢդ뤳Ȥ
ꡢ쥤ϡ֥֥뤵ޤס˥֥뤵С쥤
뤳ȤǤޤ

ɤΥ쥤桼֤ΥġȤäƺޤġƤΥǥХ
ѡ֥å񤭹ߤޤġ̾쥤 'unclean' ȥޡ
뤫⤷ϡͥ md ɥ饤ФŬڤʾĹ (RAID-1 Ǥ
ԡRAID-4/5 Ǥϥѥƥ׻) Ǥ褦˴ĤΥǥХ missing
Ȥޤ

쥤֥뤵Ȥǽ SET_ARRAY_INFO ioctl ǽޤ
äˡˤϥ᥸㡼СֹȥޥʡСֹ椬ޤޤޤ
᥸㡼СֹϡɤΥѡ֥åեޥåȤѤ뤫
򤹤ΤǤޥʡֹϡ㤨гƥǥХΤɤõХѡ
֥å뤫򼨤ʤɤȤäΥեޥåȤΰĴΤ
Ȥ뤳Ȥޤ

ΤȡADD_NEW_DISK ioctl ˤƥǥХɲäޤADD_NEW_DISK 
äˡɲäǥХ̤᥸㡼ֹȥޥʡֹ󶡤ޤ

쥤ϡRUN_ARRAY ioctl ǳϤޤ

ϤСǥХɲä뤳ȤǤޤɲäǥХˤ
Ŭڤʥѡ֥å񤭹ޤƤɬפꡢADD_NEW_DISK ΤȤ
Ϥޤ

顼򵯤ޤϡޤƥ֤ˤƤʤǥХϡ
HOT_REMOVE_DISK ǥ쥤곰ȤǤޤ


եޥå 0 Υѡ֥åΥ쥤ȡѡ֥å
ʤ (³Ū) 쥤Ŭ礹ͭ§
---------------------------------------------------------------

SET_ARRAY_INFO ioctl ǥ쥤εҤ򤪤ʤȤˤ (٥롢
)쥤ϡֺޤסϡmajor_version==0 ġ
raid_disks != 0 Ǥɬפޤθ塢ƤʤǥХ
ADD_NEW_DISK ɲäǤޤADD_NEW_DISK Ϥ빽¤ΤǤϡǥХ
֤ȥ쥤ˤꤹɬפޤ

RUN_ARRAY ǳϤСƤʤڥ HOT_ADD_DISK ɲä
ȤǤޤ
