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#1 2004-07-20 17:48:35

RedShift
Member
From: Belgium
Registered: 2004-07-16
Posts: 230

SATA RAID problem

Hello all,

I've got a problem with a system from a friend of mine. He has SATA harddrives set up as RAID 0. The SATA controller chip is an intel, but I can't remember the type.

The problem is, setup won't see the drives as an array. I've booted as arch-scsi tough. When I go to the partition setup, I can partition part1 and part2. :s


:?

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#2 2004-07-21 06:44:54

morphus
Member
From: Braunschweig
Registered: 2003-08-06
Posts: 145

Re: SATA RAID problem

let me suggest that this is a hardware raid-system with the intel chip being a sata-raid-controller?

Then you need a driver for  this controller in linux, normally they aren't compiled in kernel. Check out the Intel page for any of them...and good luck, since normally intel doesn't have raid-drivers for linux sad

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#3 2004-07-21 06:57:49

RedShift
Member
From: Belgium
Registered: 2004-07-16
Posts: 230

Re: SATA RAID problem

Crap, any way to accomplish this?


:?

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#4 2004-07-21 07:33:01

morphus
Member
From: Braunschweig
Registered: 2003-08-06
Posts: 145

Re: SATA RAID problem

hm try google with the chip, perhaps there are some guys who program such a driver...

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#5 2004-07-21 07:52:59

RedShift
Member
From: Belgium
Registered: 2004-07-16
Posts: 230

Re: SATA RAID problem

Even if I get the driver, how do I load it when I start arch-setup?


:?

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#6 2004-07-21 08:14:19

morphus
Member
From: Braunschweig
Registered: 2003-08-06
Posts: 145

Re: SATA RAID problem

you have to load it before you start the arch setup, from floppy or anything

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#7 2004-08-14 00:27:33

taskara
Member
Registered: 2004-07-03
Posts: 18

Re: SATA RAID problem

the so called "hardware" raid will not work under linux, unless you have certain 2.4.x kernels, and even then, ich5 sata support is not well supported until 2.6 kernels.

does he need raid0 for windows or something?

if so then you might have to go with a 2.4 kernel, and patch a driver for intel sata and raid

if not the best thing to do is remove the raid0 array from the controller's bios, and let it boot with just to hdd's connected - then use linux software raid.

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#8 2004-08-14 08:18:26

morphus
Member
From: Braunschweig
Registered: 2003-08-06
Posts: 145

Re: SATA RAID problem

if not the best thing to do is remove the raid0 array from the controller's bios, and let it boot with just to hdd's connected - then use linux software raid.

2 cons:

1. You can't use any other operating system like windows...
2. Software Raid causes more CPU-Load than the hardware one

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#9 2004-08-14 08:59:39

taskara
Member
Registered: 2004-07-03
Posts: 18

Re: SATA RAID problem

morphus wrote:

if not the best thing to do is remove the raid0 array from the controller's bios, and let it boot with just to hdd's connected - then use linux software raid.

2 cons:

1. You can't use any other operating system like windows...
2. Software Raid causes more CPU-Load than the hardware one

1. Hence why I said "if he doesn't need windows"
2. I disagree - that controller is not a true hardware controller - it's software driven. I think you would be surprised - I think software raid would outperform it in every area, including cputime.

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