Ron,

Well it is, i think.. (its been a long day!).. I suppose what i was trying to get at is that specifying CNTLUNUIT=3990 vs 2105 doesnt do anything different (apart from HCD only allows D/t 3390A/B for 2105..) All other control unit function/feature is queried during IPL (RDC and other subsystem CCWs etc) so even if I have defined 3990 in IOCDS and the interface is configured as 2105, it should see 2105 function? Is this Transparancy Mode

Cheers

Roy

Ron and Jenny Hawkins wrote:
Roy,

I meant using Transparency mode by specifying CNTLUNIT=3990, even though the
underlying hardware is emulating a 2105 controller. That's what I thought
you meant.

Ron

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Roy Hewitt
Sent: Tuesday, 4 April 2006 9:53 PM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: 2105 Question

Ron,

When you say 'genned as 3990' I presume you mean how the USP interface
emulation has been defined.

Roy


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