vytvareni novych RAID mirrorovych disku

[David Rohleder]

houstek-lists na utf.troja.mff.cuni.cz (Honza Houstek) writes:

>> >   Pokud to má různou geometrii, tak jsem si toho ještě nevšiml :-)
>>
>> To jsem zkousel, ale take se vzteka. Pritom jsou to dva naprosto
>> totozne disky. Nechapu, proc si vymysli ruznou geometrii:
>>
>> hda: ST340016A, ATA DISK drive
>> hdc: ST340016A, ATA DISK drive
>
> Disky muzou mit jiny firmware. Nebo muzou byt ruzne nastavene v biosu.
>

V biosu toho moc nastavit nejde, je to deska od Intelu. Nastaveni je
tam IMHO stejne.

fw-:~# hdparm -i /dev/hda

/dev/hda:

 Model=ST340016A, FwRev=3.19, SerialNo=3HS4ZE60
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78165360
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes: pio0 pio1 pio2 pio3 pio4 
 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 
 AdvancedPM=no WriteCache=enabled
 Drive Supports : Reserved : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5 

fw-:~# hdparm -i /dev/hdc

/dev/hdc:

 Model=ST340016A, FwRev=3.19, SerialNo=3HS4ZE1A
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78165360
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes: pio0 pio1 pio2 pio3 pio4 
 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 
 AdvancedPM=no WriteCache=enabled
 Drive Supports : Reserved : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5 



Jedine v cem se ty dva disky lisi je seriove cislo.


PK writes:
> IMHO je to tim, ze jeden disk je na primarnim a druhy na sekundarnim
> kanale. Tohle jsem uz videl vickrat. Ale proc je to tak, to nevim.

Oba jsou na primarnim kanalu na samostatnem radici.

-- 
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David Rohleder						davro na ics.muni.cz
Institute of Computer Science, Masaryk University
Brno, Czech Republic
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