> SYSDSN is Allocation, not ISPF. 
 
Correct.  I meant SYSDSN ENQ behavior done by allocation on behalf of ISPF 
edit.  
 
> I believe that what you are seeing is that
> for sequential data sets ISPF allocation with disposition OLD but for PDS
> it allocates with SHR. ISPF does it's own ENQ's to serialize updates to
> PDS members.
 
Agreed.  Having had coffee, I attempted to say what I really meant in a 
subsequent post.  
 
 
 
> Date: Mon, 11 Feb 2008 16:11:56 -0500
> From: [EMAIL PROTECTED]
> Subject: Re: tcpip, vary obey command failed : exclusive control
> To: [email protected]
> 
> In <[EMAIL PROTECTED]>, on 02/07/2008
> at 09:29 AM, J R <[EMAIL PROTECTED]> said:
> 
> >ISTR that ISPF edit's SYSDSN ENQ behaves differently 
> >for a sequential dataset versus a member of a PDS.
> 
> SYSDSN is Allocation, not ISPF. I believe that what you are seeing is that
> for sequential data sets ISPF allocation with disposition OLD but for PDS
> it allocates with SHR. ISPF does it's own ENQ's to serialize updates to
> PDS members.
> 
> -- 
> Shmuel (Seymour J.) Metz, SysProg and JOAT
> ISO position; see http://patriot.net/~shmuel/resume/brief.html 
> We don't care. We don't have to care, we're Congress.
> (S877: The Shut up and Eat Your spam act of 2003)
 
 
 
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