[linux] Soft raid 6 na solarise 10

[Marcel Telka]

On Mon, Mar 23, 2009 at 12:49:26PM +0100, Rudolf Kollar wrote:
> Marian Cavojsky  wrote / napísal(a):
> > On Mon, Mar 23, 2009 at 11:59:14AM +0100, Matus UHLAR - fantomas wrote:
> >   
> >>>> On Mon, Mar 23, 2009 at 09:49:49AM +0100, Rudolf Kollar wrote:
> >>>>         
> >>>>> Akurat nad tym badam a zhanam nejaky pouzitelny manual.
> >>>>>
> >>>>> Na docs.sun.com som sa docital:
> >>>>>
> >>>>> /*zpool create tank raidz2 c1t0d0 c2t0d0 c3t0d0*
> >>>>> # *zpool status -v tank*
> >>>>>   pool: tank
> >>>>>  state: ONLINE
> >>>>>  scrub: none requested
> >>>>> config:
> >>>>>
> >>>>>         NAME          STATE     READ WRITE CKSUM
> >>>>>         tank          ONLINE       0     0     0
> >>>>>           raidz2      ONLINE       0     0     0
> >>>>>             c1t0d0    ONLINE       0     0     0
> >>>>>             c2t0d0    ONLINE       0     0     0
> >>>>>             c3t0d0    ONLINE       0     0     0
> >>>>>
> >>>>> errors: No known data errors/
> >>>>>           
> >> On 23.03.09 11:29, Marian Cavojsky wrote:
> >>     
> >>> Hmm. RAID6 na troch diskoch. Síce to asi bolo jednoduché, len neviem, či
> >>> to vyhovuje zadaniu.
> >>>       
> >> Mne skor napadlo to, ze na RAID6 su potrebne minimalne 4 disky, pokial
> >> clovek nechce aby boli data z jednotlivych diskov zalohovane na tych istych
> >> diskoch. Ak mas len 3 disky, pouzi raid5 (resp. zfs raidz, nie raidz2)
> >>     
> >
> > Ved o to ide. RAID6 to nebude ani nahodou. Takze je otazka, co to
> > vlastne vytvoril.
> >
> >   
> Na zaciatku som pisal ze mam hp server so 6x sata disk. Ten kod co som
> tam uviedol bol skopirovany z docs.sun.com - ako otazka ci postupujem
> dobrym smerom.

Myslím, že áno. Nebude to síce úplne presne RAID-6, ale bude sa to na to
pomerne dosť podobať.

http://blogs.sun.com/ahl/entry/double_parity_raid_z

-- 
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| Marcel Telka   e-mail:   marcel na telka.sk  |
|                homepage: http://telka.sk/ |
|                jabber:   marcel na jabber.sk |
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