Hi Craig,

I'm using the ADIC-1200 as well (although with linux instead of sunos, mtx is the same 
as yours - 1.2.10).

> # mtx -f /dev/scsi/changer/c0t5d0 inquiry
> Product Type: Medium Changer
> Vendor ID: 'ADIC    '
> Product ID: 'DAT AutoChanger '
> Revision: '0461'
> Attached Changer: No

> So far, this is good, but I'm not quite sure why it reported the last
> piece of information as 'No'.

I get the same information when running mtx inquiry (only you got a newer revision 
;-), so that shouldn't be a problem. AFAIK the 'Attached Changer' is only yes if your 
tape changer and tape drive listen to the same scsi ID and thus understand both 
streamer and changer scsi commands (maybe different LUNs). But that's not the case 
with the ADIC.
 
> # mtx -f /dev/scsi/changer/c0t5d0 status
> mtx: no Data Transfer Element reported

Hmm, have you checked the SCSI ID settings on the back of the unit ? The only 
situation that could lead to such an error is in my opinion (and to my knowledge) that 
both the changer and the tape device have the same ID set, so the changer can't find 
its streamer. Is the tape device listed seperately when you list all your scsi devices 
on that bus ?

Regarding your question about replacing the shipped drive with a newer model: The same 
thing came to my mind as well. I already opened the case to find out, that it should 
be possible to replace the existing drive with another one. It shoud work as long as 
it's the same brand, because I have the feeling that the changer device snoops on the 
tape device messages on the scsi bus and I don't know how well they're standardized 
(e.g. the arm doesn't try to grab a tape out of the tape drive before unloading the 
whole cartridge unless you issued an eject command to the _tape drive_ before ...). If 
you have any success with this, please let me know (although I have a HP drive instead 
of a sony).

Urban

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