Date: Sat, 11 Oct 2003 01:04:33 +0200 From: =?ISO-8859-1?Q?Rapha=EBl_Marmier?= <raphael@computer-rental.ch> To: freebsd-questions@freebsd.org Subject: a problem of hard disks ordering... Message-ID: <1C73C231-FB76-11D7-A70A-000393D67E4A@computer-rental.ch>
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I have recently installed FreeBSD 4.8 on a small Compaq Proliant server with a built-in Adaptec SCSI3 controller and a SmartArray 532 raid controller. The root device is on the volume provided by the raid controller, which is accessible under /dev/da#, like the built-in scsi. I like to add a scsi drive on the built-in scsi to use for storing "worthless" data such as /usr/src, /usr/ports and /usr/obj, so it's fast and doesn't hog the production volume. My problem is that when I add a drive to the built-in controller, it gets mapped to /dev/da0, pushing the SmartArray's volume to /dev/da1 !!! I need this server to be able to survive a disk failure, IMHO, should include the ability to reboot properly. However, with such a setup, the failure of any non-raid disk would prevent the os from booting (wrong fstab), which somehow defeats the purpose of having raid in the first place. This is a dns and mail server, so it MUST be able to come up again, whatever the reason of the shutdown. Is there a way to force the order the da driver maps drive? thanks in advance Raphael
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