Thread: scsi luns
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Old 21 April 2013, 23:29   #2
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a good thread about that issue. some quotes:

The ID is set by jumpers on the back of the device.
The LUN is set by the device internally and cannot be changed. (Except perhaps by a firmware update)

In case of the multi-reader the LUN corresponds to the slot. The SCSI ID is equal for all slots. The combination of LUN and ID determines the Unit.
LUNs being MSB and SCSI ID as LSB
( of the UNIT in mountlist )
SCSI ID 2 becomes Unit 2, not Unit 20.

Unit = 2 means ID = 2, LUN = 0
Unit = 20 means ID = 0, LUN = 2

Last edited by prowler; 21 April 2013 at 23:36. Reason: Changed link from opening post to thread.
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