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RE: problem with installing Debian on a ide raid controler : PART 2




-----Original Message-----
From: Nate Amsden [mailto:aphro@aphroland.org]
Sent: Friday, August 25, 2000 2:43 PM
To: Oliver Kowalke
Cc: debian-user@lists.debian.org
Subject: Re: problem with installing Debian on a ide raid controler :
PART 2


Oliver Kowalke wrote:
> 
> Dear all,
> 
> I forgot to say that I want to install Debian 2.2 on a raid 0 array. So -
> installing Debian on a drive  on motherboard ide controler will not work.
> Maybe should I compile a new kernel with a driver for my ide raid
controler
> card an put it on the boot floppy?

>99% of those IDE raid controllers are indeed NOT raid, but standard ide
>controllers that come with raid software. If this is the case(it is
>difficult to determine wether or not the controller is hardware
>sometimes, a good example is the Promise ATA raid controller you can
>turn a standard promise ata controller into raid by just adding a piece
>of circutry to it and flashing the bios.  If your "raid" card is infact
>software based then it is not a "raid" card because the raid portion is
>all software, since linux already has raid builtin to it, you don't need
>the software even if you could use it on linux.

>1) don't hold your breath on installing linux on an ide raid controller
>2) You don't need to install the core OS onto raid  -- more on this
>later
>3) booting off a raid controller onto a raid set is extremely difficult
>and only possible with certain controllers.

>The problem - if the drives are in raid "mode", and the raid "driver" is
>loaded after the system boots(or more accurate while it is booting) how
>is the system supposed to boot off the drives if the driver is loaded
>yet?)  This is possible using some hardware raid controllers(i've yet to
>see a ide raid controller that can stand up to a scsi raid, not only
>that but abit's quality control is crap)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
It's very important to add 'IMO' when not providing a shred of evidence for
claims like this.

<SNIP>

>nate


>-- 
>:::
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>aphro@aphroland.org



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