root na SW RAID1

[Peter Mann]

On Tue, Oct 21, 2003 at 09:07:07AM +0200, Veros Kaplan wrote:
> osiris# cat /proc/mdstat  
> Personalities : [raid0] [raid1] 
> read_ahead 1024 sectors
> md0 : active raid1 hdc1[0] hda1[1]
>       15936 blocks [2/2] [UU]

musi byt pouzite zariadenie /dev/md0 ???
ak mam sda1 a sdb1, tak by som chcel pouzit /dev/md1

musim mat samostatnu boot particiu?
vacsinou mam / na zaciatku disku a /boot samostatnu particiu nemam

je to dolezite preto, lebo chcem na RAID-1 previest zopar beziacich
systemov

> /dev/md1 on / type ext3 (rw,errors=remount-ro)

ta ext3 tam bola aj pred RAID-1? nerobi problem ext3?
(vid http://www.spinics.net/lists/raid/msg03427.html)
[podla mna to nie je problem, len sa chcem uistit]

> /dev/md0 on /boot type ext3 (rw)         <<< /boot

> Mám tam LILO, Debian/skoro stable

predpokladam, ze islo o konvertovanie z non-RAID na RAID-1
este mi nie su jasne niektore veci, pricom som uz pozeral:

http://www.linux.cz/noviny/2001-08/clanek04.html
http://www.linux.cz/linuxdoc/HOWTO/Boot+Root+Raid+LILO.html
http://tldp.org/HOWTO/Software-RAID-HOWTO.html
http://www.midhgard.it/docs/lvm/html/index.html
http://karaolides.com/computing/HOWTO/lvmraid/lvmraid.html

Various ways to install Debian Woody
LVM and RAID tools for Boot-Floppies
http://people.debian.org/~blade/install/

pekny zoznam liniek je tu:
http://www.1u-raid5.net/HowTo/SW-Raid-HOWTO.txt

musi byt v jadre podpora pre RAID-1 zakompilovana v jadre?
[podla mna ano, ako modul sa to nevie z mdX bootnut]

http://karaolides.com/computing/HOWTO/lvmraid/node10.html
doesn't automatically start RAID arrays when compiled as a module; the
intervention of a user-space utility is required. I therefore suggest
that the simplest solution for this is compiling the RAID code into the
kernel, rather than as modules, though there are ways to include the
user-space utilities in the initial ramdisk.

mne nejak postup non-RAID -> RAID-1 nechce fungovat
(mozno preto, ze pouzivam md1 namiesto md0)

-- 

5o   Peter.Mann at tuke.sk
     KLFMANiK ICQ 12491471
         PM2185-RIPE