Softwarovy RAID

[Igor Bujna]

Jiří Hubka wrote:

>Dobry den mam Linuxovy server (RH7.2)
>Konfigurace
>Quantum 10GB - system,swap,...
>2x Quantum 60 - hdd hdc (tedy md0 s sgi.xfs) - jako RAID 1 pro data
>
>Ted mi ale server/Linux hlasi pri startu toto hlaseni :
>
>raid1: device hdd1 operational as mirror 1
>raid1: md0, not all disks are operational -- trying to recover array
>raid1: raid set md0 active with 1 out of 2 mirrors
>md: recovery thread got woken up ...
>md0: no spare disk to reconstruct array! -- continuing in degraded mode
>md: recovery thread finished ...
>md: updating md0 RAID superblock on device
>md: hdd1 [events: 000000d8](write) hdd1's sb offset: 58633216
>md: ... autorun DONE.
>
>Pritom semi vsechny disky hlasi jak v BOISu tak v Linuxu
>nebo trebai v /proc/partitions
>
>v souboru mdstat mam toto:
>
>Personalities : [raid1]
>read_ahead 1024 sectors
>md0 : active raid1 hdd1[1]
>      58633216 blocks [2/1] [_U]
>
>unused devices: <none>
>
>Mam pocit ze mi bezi jenom hdd1
>
Takovy pocit znam. Raid bezi jenom na hdd.
Jinak pekny popis Raidu je v poslednich linuxovych novinach na 
http://www.linux.cz/noviny

> 
>Muzete mi poradit co s tim v HOWTO-RAID sem nic nenasel
>a ani v konferenci sem nic podobneho neobjevil.
>Nerad bych provedl neco co by pokoskodilo data.
>
>Za kazdou pomoc dekuji.
>