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Date:      Sun, 25 Oct 1998 12:25:10 -0600 (CST)
From:      Joe Greco <jgreco@solaria.sol.net>
To:        scsi@FreeBSD.ORG
Subject:   Do we support > 32 drives yet?
Message-ID:  <199810251825.MAA04658@aurora.sol.net>

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Installed a 3.0-BETA shortly before -RELEASE.

This machine has a lot of disks :-)

% camcontrol devlist -v
scbus-1 on xpt0 bus 0:			<= Huh? What's this?
scbus0 on ahc0 bus 0:
scbus1 on ncr0 bus 0:
<SEAGATE ST31055N 0318>            at scbus1 target 0 lun 0 (da0)
<SEAGATE ST31055N 0532>            at scbus1 target 1 lun 0 (da1)
<SEAGATE ST31055N 0532>            at scbus1 target 2 lun 0 (da2)
<SEAGATE ST31055N 0532>            at scbus1 target 3 lun 0 (da3)
<SEAGATE ST31055N 0532>            at scbus1 target 4 lun 0 (da4)
<SEAGATE ST31055N 0532>            at scbus1 target 5 lun 0 (da5)
<SEAGATE ST32171N 0338>            at scbus1 target 6 lun 0 (da6)
scbus2 on ncr1 bus 0:
<SEAGATE ST31055N 0532>            at scbus2 target 0 lun 0 (da7)
<SEAGATE ST31055N 0532>            at scbus2 target 1 lun 0 (da8)
<SEAGATE ST31055N 0532>            at scbus2 target 2 lun 0 (da9)
<SEAGATE ST31055N 0532>            at scbus2 target 3 lun 0 (da10)
<SEAGATE ST31055N 0532>            at scbus2 target 4 lun 0 (da11)
<SEAGATE ST31055N 0532>            at scbus2 target 5 lun 0 (da12)
<SEAGATE ST34572N 0784>            at scbus2 target 6 lun 0 (da13)
scbus3 on ahc1 bus 0:
<SEAGATE ST31055N 0532>            at scbus3 target 0 lun 0 (da14)
<SEAGATE ST31055N 0532>            at scbus3 target 1 lun 0 (da15)
<SEAGATE ST31055N 0532>            at scbus3 target 2 lun 0 (da16)
<SEAGATE ST31055N 0532>            at scbus3 target 3 lun 0 (da17)
<SEAGATE ST31055N 0532>            at scbus3 target 4 lun 0 (da18)
<SEAGATE ST31055N 0532>            at scbus3 target 5 lun 0 (da19)
<SEAGATE ST32272N 0784>            at scbus3 target 6 lun 0 (da20)
scbus4 on ahc2 bus 0:
<SEAGATE ST31055N 0532>            at scbus4 target 0 lun 0 (da21)
<SEAGATE ST31055N 0532>            at scbus4 target 1 lun 0 (da22)
<SEAGATE ST31055N 0532>            at scbus4 target 2 lun 0 (da23)
<SEAGATE ST31055N 0532>            at scbus4 target 3 lun 0 (da24)
<SEAGATE ST31055N 0532>            at scbus4 target 4 lun 0 (da25)
<SEAGATE ST31055N 0532>            at scbus4 target 5 lun 0 (da26)
<SEAGATE ST32272N 0784>            at scbus4 target 6 lun 0 (da27)

ahc0 is the built-in 7890 on the motherboard; I purchased an ASUS
P2B-DS on the theory that I didn't want to place any artificial future
limits on what I did, since I knew CAM would support it.

I'm seriously looking at adding some nice (newer) Seagate Cheetah W
drives to this machine, but the question is, how many can I actually
do?

We used to have a limit of 32 drives, and as you can see, I'm pushing
to near that limit with 28.  The code in MAKEDEV looks to me like we
might still have that limit.  I'd like to know for sure before I
commit to a pointless expense.

... Joe

-------------------------------------------------------------------------------
Joe Greco - Systems Administrator			      jgreco@ns.sol.net
Solaria Public Access UNIX - Milwaukee, WI			   414/342-4847

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