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Date: Tue, 17 Aug 2004 14:17:38 -0600
From: Scott Long <scottl@samsco.org>
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To: Herve Boulouis <amon@sockar.homeip.net>
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cc: freebsd-scsi@freebsd.org
cc: Scott Long <scottl@freebsd.org>
Subject: Re: Adding a raid volume without reboot
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Herve Boulouis wrote:
> Le 16/08/2004 à 21:01, Scott Long a écrit:
> 
>>On FreeBSD 5.x, the /dev/aacdX entry will be created as soon as the
>>controller announces it.  On 4.x you might need to manually create the
>>node, and that is irregardless of needing a reboot or not.
>>
>>So the short answer is that FreeBSD will see arrays come and go in real
>>time on Adaptec RAID controllers and will do the right thing.
> 
> 
> That's great news !
> 
> Is this behavior driver dependent or does it apply to all others raid &
> scsi drivers ?
> 
> Thanks for the info.
> 

I can only speak for Adaptec RAID that uses the 'aac' driver.  Some SCSI
and SCSI-like RAID drivers will announce state changes to the SCSI
layer, others don't.

Scott