Linux Debian support - How to rearrange drives in a RAID array?

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Author How to rearrange drives in a RAID array?
Daniel Buus

2006-04-08, 7:12 pm

Hi there

First post here - just kicked Mandriva, SUSE and FC4 out the window as
Debian was the only system actually capable of installing on my
apparently not-so-kosher system ;) I gotta say, I *really* love how
well the text-based setup system works! I would have never thought...

Anyway, I have the system setup with a six-disk RAID-5 array like so:
/dev/hda1 (VIA channel 1 master)
/dev/hdb1 (VIA channel 1 slave)
/dev/hdc1 (VIA channel 2 master)
/dev/hde1 (HPT370 channel 1 master)
/dev/hdf1 (HPT370 channel 1 slave)
/dev/hdg1 (HPT370 channel 2 master)

The first controller in the box (an onboard VIA controller) is about
three times as fast as the second controller (an HPT370 RAID
controller), so I'd like to rearrange the drives so that the HPT370
only has two drives, both as master, and the arrangement now, as you
can see, is that the first channel on it has a slave. Why didn't I just
do that before installing? Because the HPT370 doesn't like anything but
hard drives - it doesn't support CD-ROM drives, so I simply _had_ to
use one of the VIA's slots for my CD-ROM while installing.

I've tried just rearranging the cables and the booting, hoping that the
software RAID was assembled using labels rather than physical
addresses, but no...

Can someone tell me which file to edit, if it is that simple in the
first place?

Thanks in advance,
Daniel

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