Once there are no users for a linklist set, the linklist can be deleted.
That should free up the allocation, but I haven't proved it.

Jerry Whitteridge
Mainframe Engineering
Safeway Inc
925 951 4184
[EMAIL PROTECTED]
If everything seems under control, you're just not going fast enough. 
 

> -----Original Message-----
> From: IBM Mainframe Discussion List 
> [mailto:[EMAIL PROTECTED] On Behalf Of Edward Jaffe
> Sent: Friday, December 05, 2008 1:57 PM
> To: [email protected]
> Subject: Re: Redefining the link list
> 
> Edward Jaffe wrote:
> > McKown, John wrote:
> >> I know that I can dynamically update the Linklist to add or delete
> >> datasets. The question is, how many times? I know that the 
> IPL linklist
> >> stays around for the duration. But if I dynamically update 
> the lnklst,
> >> find a problem, then dynamically update again, is the "replaced"
> >> linklist eliminated entirely (assuming no job is using it)?
> >>   
> >
> > Every new LNKLST set is given a new name. Old ones are not 
> "replaced". 
> > Rather, new ones are activated. Once activated, all new 
> address spaces 
> > will use it. Existing address spaces continue to use 
> whatever LNKLST 
> > SET they're currently using. To force an already-running 
> address space 
> > to use your newly-activated LNKLST SET, use SETPROG 
> LNKLST,UPDATE (at 
> > your own risk).
> 
> Oops. Sorry. I see you are asking about storage occupancy for 
> no-longer-used LNKLST sets.
> 
> My understanding is that the storage occupied by a no-longer-in-use 
> LNKLST set is NOT released. This is based on empirical 
> observation that 
> the old names still appear in the OCO control blocks that represent 
> LNKLST sets. If you run a utility like SHOWMVS or MXI, you will still 
> see the old LNKLST sets listed with zero address spaces using them.
> 
> But, Peter will have to say for sure. The code is OCO. :-(
> 
> -- 
> Edward E Jaffe
> Phoenix Software International, Inc
> 5200 W Century Blvd, Suite 800
> Los Angeles, CA 90045
> 310-338-0400 x318
> [EMAIL PROTECTED]
> http://www.phoenixsoftware.com/
> 
> ----------------------------------------------------------------------
> For IBM-MAIN subscribe / signoff / archive access instructions,
> send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
> Search the archives at http://bama.ua.edu/archives/ibm-main.html
> 
> 

"Email Firewall" made the following annotations.
------------------------------------------------------------------------------

Warning: 
All e-mail sent to this address will be received by the corporate e-mail 
system, and is subject to archival and review by someone other than the 
recipient.  This e-mail may contain proprietary information and is intended 
only for the use of the intended recipient(s).  If the reader of this message 
is not the intended recipient(s), you are notified that you have received this 
message in error and that any review, dissemination, distribution or copying of 
this message is strictly prohibited.  If you have received this message in 
error, please notify the sender immediately.   
 
==============================================================================

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html

Reply via email to