Date: Mon, 27 Jan 2003 12:37:40 -0700 From: Scott Long <scott_long@btc.adaptec.com> To: "Marc G. Fournier" <scrappy@hub.org> Cc: freebsd-stable@freebsd.org Subject: Re: Adaptec 2120s RAID Controller with 4.7-RELEASE ... alternative? Message-ID: <3E358A84.1050207@btc.adaptec.com> In-Reply-To: <20030126223025.X15704@hub.org> References: <20030126223025.X15704@hub.org> <3E34AAF6.4080902@btc.adaptec.com> <20030127151711.J22851@hub.org>
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Marc G. Fournier wrote: > On Sun, 26 Jan 2003, Scott Long wrote: > > > >Yes, this checkin addresses the last known problems in the driver. > If you > >can update to 4-STABLE, the driver will work. > > > 'K, thanks ... > > > >The 'metadata' is saved on each drive that composes the array. It is > also > >saved in nvram on the card. When you turn on the machine, the card scans > >its scsi busses and compares what it finds to what it has stored, and > >configures itself accordingly. If you replace the controller, the new > >controller will scan the buses, see the drives and arrays, and configure > >itself > >to use them. It's designed to be pretty seamless and logical in this > >respect. > > > what if the drives are put in under different SCSI ids? does it know how > to deal with that as well? I tried it with one of the ZCR cards, and it > didn't seem to be able to reconfigure itself for the change in ordering, > but I may have not done something right ... ? You're taking your chances by doing this. The details of how the aac and asr controller firmware (which, btw, are vastly different) each handle and validate their metadata is not something that I can comment on, so my advice is to keep your configuration as static as possible. Scott To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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