From owner-freebsd-questions  Wed May  8  9:56:47 2002
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To: "Toomas Aas" <toomas.aas@raad.tartu.ee>
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References: <000e01c1f5da$0500aad0$7b01a8c0@afi> <200205080648.g486mt728189@lv.raad.tartu.ee>
Subject: Re: Mylex RAID to Asus Symbios SCSI Card
Date: Wed, 8 May 2002 12:56:31 -0400
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----- Original Message -----
From: "Toomas Aas" <toomas.aas@raad.tartu.ee>
To: "Chad Leigh -- Shire.Net LLC" <chad@shire.net>; <freebsd-questions@FreeBSD.ORG>
Sent: Wednesday, May 08, 2002 2:46 AM
Subject: Re: Mylex RAID to Asus Symbios SCSI Card


> Hi!
>
> [Replacing Mylex RAID adapter with Symbios SCSI adapter]
>
> > I have a question on this.  Is it even possible?  I don't know the
> > details, but I seem to remember that each controller writes to the disk
> > in its own way so that another controller type (different brand of SCSI
> > controller) won't be able to read the disk or use it.
>
> My thoughts exactly. Maybe if the disks on old controller were
> configured as JBOD (no RAID) it would work, but if they were
> configured as RAID array then I think that only the Mylex adapter is
> able to adequately read the partition(s) on the array.

I was hoping to use one of the disks, then format the second one and just go from
there.
In short, I would like to tell FreeBSD there is no more RAID and there is a new
regular
SCSI controller.

I`ll have to look up JBOD, never heard of it. :)


Regards,

D





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