RAID synexeia (device sequence & grub)

[V13]

On Tuesday 22 July 2008, Christos Ricudis wrote:
> opoia telika emfanizontai ta devices einai apla 8ema tyxhs. Exw spastei
> apeires fores apo to gegonos oti arkei na balw enan driver inlined ston
> kernel anti compiled san module, gia na mou allaksei OLO to sd device
> ordering.
>
> 8a mporouse kati tetoio na symmazeytei ligo me th xrhsh tou udev, alla
> den egine eks'arxhs kammia sobarh prospa8eia gia kati tetoio.

Eisai eleytheros na to kaneis ean theleis na katastrepseis ton paralilismo
toy module loading poy kanei to udev, tote . Se opoiadipote diaforetiki
periptosi tha exeis th shmerini diafora.

Enalaktika xrisimopoieis kapoio <flame>sobaro (tm)</flame> distribution to
opoio analambanei na dinei stathera onomata stis syskeves gia parti soy kai
pithanos to epektineis gia na doylevei kai se alles syskeves. (Blepe
/etc/udev/rules.d/*persistent*)

> To problhma twra me ta uuids einai oti apoteloun filesystem-specific
> feature - den xarakthrizoun ena block device (to opoio synh8ws den exei
> kanena unique anagnwristiko epanw tou, me th fwteinh eksairesh twn fibre
> channel devices).

Ahem...

$ udevinfo --query=all --name=sda
P: /block/sda
N: sda
[...mplampla...]
E: ID_SERIAL_SHORT=WD-WCANY2118030
[...mplampla...]

Genika, mporeis na exeis stathera onomata analoga me tis orekseis soy.
Blepe //dev/disk:

lrwxrwxrwx 1 root root 9 2008-07-22 08:52 /dev/disk/by-id/ata-WDC_WD2500YS-01S-WD-WCANY2118030 -> ../../sda

AFAIK, sxedon oi pantes exoyn ensomatosei kapoio eidos serial stis
syskeves toys pleon.

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