I'm running z/VM 5.2.  I think it's the HALT that is ultimatly messing up
 
DDR.  DDR abends as soon as the button on 3590 tape drive is pushed to 

start the tape loading, so it's probably related to I/O interrupt 
particulars different from what DDR is expecting.

I'll be interested in seeing what you did differently or if this is the 

result of "improved" error recovery in DDR.

I've even experimented with using the tape drive attached in multiuser 

mode, but a HALT (and more) is still required to the tape drive in order 

to update the operator display.  End result is the same - DDR abends.

Brian Nielsen


On Tue, 23 May 2006 11:14:36 -0500, Huegel, Thomas <[EMAIL PROTECTED]> 

wrote:

>Brian,
>
>I don't remember having any problem with DDR abending, I ran this on z/V
M
>4.3 and z/VM 5.1.
>In my case after I (prop) detached the tape I (prop) attached it to an
>'automated tape manager' that recorded the tape then unloaded it and 
mounted
>a new tape and then I (prop) attached the drive back to 'DDR'. I believe
 
DDR
>saw the new tape and continued the dump without any problem.
>I am still looking for the exec but I was at a different company when I
>wrote it, I think they still use it, I just need to find someone there 

that
>will re-share it with me.
>
>Tom
>
>
>
>-----Original Message-----
>From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED]
>Behalf Of Brian Nielsen
>Sent: Tuesday, May 23, 2006 9:50 AM
>To: [email protected]
>Subject: Re: GIVE command on a tape drive with intervention required
>
>
>On Mon, 22 May 2006 17:00:05 -0500, Huegel, Thomas <[EMAIL PROTECTED]>
>wrote:
>
>>I remember doing pretty much what you are attempting to do just a coupl
e
>of
>>years ago.
>>The old brain cells fail me but I do remember it worked and I had to us
e
>the
>>'HALT' command. I think I did a DETACH rdev (LEAVE and an ATTACHn not
>GIVE,
>>but I don't know why. It may have been  something with the sequence...
>>
>>I'll look for the code, but to be honest, I don't think I have it 
anymore.
>
>I was able to do a HALT, DETACH the drive from the user running DDR, and

>ATTACH it to a different user.  However, when I ATTACH it back to the DD
R
>user DDR gets an operation exception.  Did you encounter that?
>
>Brian Nielsen
>
>
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