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Date:      Thu, 17 Oct 2002 15:41:26 -0600 (MDT)
From:      Fred Clift <fclift@verio.net>
To:        <freebsd-hackers@freebsd.org>
Subject:   umass bus scanning (or perhaps just a general prob with CAM?)
Message-ID:  <20021017153542.I86982-100000@vespa.dmz.orem.verio.net>

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I have a usb mass storage device that supports multiple LUNs.  It has two
(mmc) 'drives' that can be mounted.  When I insert the device, the usb
subsystem finds the base device, and assigns da1 (da0 exists already) to
the lun0 drive in the device.  After a bit of experimentation, it turns
out that if I manually 'camcontrol rescan 1:0:1" that the second drive is
found and I can use it.

Does the CAM system normally just assume one LUN and not bother looking
for more?  is this a problem with just usb devices?  I have no
multiple-lun scsi devices to test with...

It is really not much of an issue now that I know to manually scan for the
device after insertion, but well, enquiring minds want to know!

Fred

--
Fred Clift - fclift@verio.net -- Remember: If brute
force doesn't work, you're just not using enough.


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