A.P. Lawrence

RAID configuration

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From: Tony Lawrence <tony@aplawrence.com>
Subject: Re: how to configure a logical drive References: <a2c0nq$ltj$1@serv1.iunet.it>
Date: Sat, 19 Jan 2002 15:41:03 GMT

Luca wrote:

> Hi
> 
> I've configured 2 Logical Drive on a SCSI Controller. Three disk have a raid
> 5 configuration and the last 2 have Raid 1.
> I install a SCO Openserver 5.0.4 with
> 
>                 boot : restart link="ipsraid" Sdsk=ips(0.0.0.0)
> Srom=(0.0.0.0)
> 
> All works fine, but now i've only the first logical drive configurated !!!
> 
> How can i mount the second logical drive ???
> 
> (( mkdev hd for scsi disk call me about scsi id,bus,host (not for logical
> drive !!!) ))

The logical drive presents itself as a physical drive.

If you look at /etc/conf/cf.d/mscsi now, you'll see one entry for your 
RAID array- presented as one physical drive.

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Often RAID controllers present each array as the  id of its first 
member, or they'll just go in sequence, first array seen as id 0, second 
as 1, but yours could be different.  If you were running 5.0.5 or better 
you could try "sconf -v" to see what it sees, but that usually panics a 
5.0.4 system.

-- 
Tony Lawrence
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