RAID 1+0 on Promise Fastrak S150 TX4

Antoine DAMAGEUX Antoine.Damageux at ircad.u-strasbg.fr
Fri Jul 22 07:41:06 UTC 2005


Hello,

I have exactly the same problem on a ASUS PC-DL With a integred promise
PDC20378 controler
dmraid see the 4 drive ( 2 S-ATA & 2 P-ATA )in mirror mode, but the
controler & Windows has a RAID 10 array configured

do dmraid will support promise RAID 10 ? how can I do

Thank a lot

Antoine DAMAGEUX

Re: RAID 1+0 on Promise Fastrak S150 TX4

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From: Heinz Mauelshagen <mauelshagen redhat com>
To: tpikonen pcu helsinki fi, "ATARAID (eg, Promise Fasttrak, Highpoint 370)
related discussions" <ataraid-list redhat com>
Cc:
Subject: Re: RAID 1+0 on Promise Fastrak S150 TX4
Date: Thu, 7 Jul 2005 15:47:10 +0200

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On Mon, Jun 20, 2005 at 12:50:54PM +0300, Teemu Ikonen wrote:
> Hi all,
>
> I'm trying to migrate a RAID 1+0 array on a Promise S150 TX4 card with
> 2.4.x kernel and the ft3xx.o module to a 2.6 kernel based system.
>
> Unfortunately, it seems that dmraid supports only either RAID 1 or
> RAID 0, but not the combination (RAID 10) on this card.
>
> The ft3xx module gives the following information on the array:
>
> # cat /proc/scsi/ft3xx/0
> PROMISE FastTrak TX4000/376/378/S150 TX Series Linux Driver Version
1.00.0.18
> Adapter1  - FastTrak S150 TX4
> Array     - Array[1] : 2X2 Mirror/Stripe (OK-Gigabyte Boundary)
> Drive     -
>   1 : Maxtor 6Y200M0        IDE1/Master 203928MB IRQ(17) UDMA6 Array[1]
>   3 : Maxtor 6Y200M0        IDE2/Master 203928MB IRQ(17) UDMA6 Array[1]
>   5 : Maxtor 6Y200M0        IDE3/Master 203928MB IRQ(17) UDMA6 Array[1]
>   7 : Maxtor 6Y200M0        IDE4/Master 203928MB IRQ(17) UDMA6 Array[1]
>
> Dmraid tells the following:
>
> # dmraid -tay
> pdc_cebbhcjedc: 0 792968704 mirror core 2 512 nosync 4 /dev/sdc 0 /dev/sdd
0
> /dev/sde 0 /dev/sdf 0
> ERROR: dos: reading /dev/mapper/pdc_cebbhcjedc[No such file or directory]
>
> Contratry to above the device file /dev/mapper/pdc_cebbhcjedc exists,
> but mounting it fails.
>
> Is there anything I could do to help get the RAID 10 support on TX4 to
> work with  dmraid?

Yes, send me the files 'dmraid -rD' writes (*.dat, *.size and *.offset)
in a bzip2'ed tarball named pdc-Teemu_Ikonen.tar.bz2 and I'll see what
I can do ;)
Please use an actual version to produce those.

Cheers,
Heinz




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