Check the archives.  This is WAD.  DB2 uses cross memory services to
operate, and in order to reduce the number of resources it uses, at
subsystem initialization, it issues an SRB into the MASTER address space to
allocate the system LX's.  Because of this, when DB2 subsystems shutdown,
the ASN's are marked as non-reusable because there is a XM linkage between
ASN 1 and the DB2 ASN's.  (I am not sure if the ASN reuse code in z/OS 1.6
changes this, maybe Peter Relson could comment).  
The best way to avoid this situation is to NOT recycle DB2 regions.  I see
little reason why DB2 has to be stopped during the lifetime of an IPL. 

Wayne Driscoll
Product Developer
Western Metal Supply
NOTE: All opinions are strictly my own.
  

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf
Of William Ball
Sent: Thursday, July 21, 2005 7:18 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: RSVNONR -DB2

All,

I understand why RSVNONR is in a "bit of a fix" <g> in our shop and we're
trying to address the problem by getting the problem tasks to shutdown
-cleanly- but aren't having much luck so I thought I'd run it up the flag
pole (so to speak) and see if any of you have found a solution or might
suggest one. 

The -offending- address spaces are -all- DB2 regions that get cycled on a
regular basis (I still need to talk to the DBA to see why). We've got
Landmark and BMC as well as CICS that -touch- DB2 and we've tryed shutting
them down in about everyway possible but the IEF352I message won't go away
and of course the used RSVNONR keeps increasing with every shutdown and
startup of DB2. 

It's been 2.5 months since an IPL and we plan on increasing RSVNONR from
99 to 2xx but it just urks me to think we might -have- to have planned IPL's
over something this silly. Has anyone found a way around it or do you all
just plan an IPL on some scheduled basis and call it a day? 



Bill

Mainframe - 

An obsolete device still used by thousands of obsolete companies, serving
billions of obsolete customers, and making huge obsolete profits, for their
obsolete shareholders. And this year's run twice fast as last 
year's.          -Phil Payne-

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