Date: Mon, 28 Apr 1997 07:44:13 -0400 From: Richard Hwang <rhwang@bigpanda.com> To: Robert Morris <rtm@viaweb.com> Cc: freebsd-isp@freebsd.org Subject: Re: CMD RAID arrays? Message-ID: <199704281144.HAA21440@megazone.bigpanda.com> In-Reply-To: Your message of "Fri, 25 Apr 1997 15:11:21 EDT." <199704251911.PAA03972@www.viaweb.com>
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> Can you tell me whether any of the CMD RAID controllers actually work > with FreeBSD? This is with reference to your posting in February > describing their Daytona product. CMD's Daytona does indeed work with FreeBSD, since it is a SCSI-to-SCSI controller. The only FreeBSD issue you need to be aware of is that if you do decide to use partitions, you need to make a little change to the kernel to enable multiple LUN probing. This is because FreeBSD views partitions as being on separate LUNs. See http://www.freebsd.org/handbook/handbook122.html#257 for more details on enabling multiple LUN probing. FYI, I didn't add the struct as suggested in the handbook. I just changed the line in /sys/scsi/scsiconf.c: maybe_more = 0; /* by default only check 1 lun */ to this: maybe_more = 1; /* by default check all luns (time for a coffee break!) */ Obviously, it will take longer to boot (and may not even work for you; YMMV), but that's ok with me, since it gives me the time I need to run out and find a decent cup of cappucino. Not bad for a single-character-change hack. :) --- Richard Hwang rhwang@bigpanda.com Big Panda House Consulting http://www.bigpanda.com
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