OY63276: SENSE 08570002 ISSUED FOR CROSS NET CLSDST PASS FROM SERVICE MANAGER APPLICATION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Service Manager Application issues a CLSDST PASS to initiate
  a CrossNet session.  Intermittently, the INIT OTHER 810680
  fails with SENSE 08570002 issued out of ISTSSCUC.  It appears
  that VTAM is getting confused between which resource is the
  OLU.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All with cross-domain configurations and     *
  *                 with applications that issue CLSDST PASS.    *
  ****************************************************************
  * PROBLEM DESCRIPTION: CLSDST PASS session initiation request  *
  *                      fails with sense 08570002 to the INIT   *
  *                      OTHER request.                          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  In order for this problem to occur you minimally need a 2-host
  cross-domain configuration.
  The problem occurs during CLSDST PASS processing when the
  INITOTHER is processed.  When the INITOTHER is a result of
  third party initiation, as in the case of CLSDST PASS,
  INIT OTHER processing determines who will be the OLU and who
  will be the DLU for the new session.  This determination
  is based on several factors, including whether or not the
  resources are known to this host and whether they are owned
  by this host.
  In the case that uncovered the error, the SLU was found to
  be a CDRSC and the PLU was found to be owned by this host.
  However, the PLU was inactive on this host.  (It must be
  noted, however, that the PLU was active on another host.)
  The parsing module ignores the fact that the PLU is
  inactive and, based on the RDTEs that were found, it
  assigned the PLU as the OLU and the SLU as the DLU. Then
  session setup processing continued.  Session setup failed
  shortly after, when checking was done to see if the resources
  were available.  The OLU was found to be inactive, resulting
  in session initiation failing with sense code 08570002.
  However, if you change this configuration slightly so that
  the SLU is an LU  owned by this host rather than a cross
  domain resource, and if keep everything else the same, the
  session setup will work. This is because in this case, the
  SLU would be the OLU and the PLU would be the DLU.
  DLU processing allows in certains cases LUs that are not active
  to be pushed into shadow set and looked for on another host.
  Similar processing is required for our case.
  

Problem conclusion

• VTAM INITOTHER processing was changed to invoke INITOTHER_CD
  processing when the SLU is not in this host and the PLU is on
  this host but not active. This way, if the PLU is found active
  on another host, the session should set up.
  To accomplish this, 3 modules were changed: ISTSSCBI, ISTSSCEP,
  and ISTSSCFD.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UY95355 OY65324 VM56450 VM56451

Modules/Macros

• ISTSSCBI ISTSSCEP ISTSSCFD
  

Fix information

• Fixed component name

  VTAM V4 MVS/ESA

• Fixed component ID

  569511701

Applicable component levels

• R101 PSY UY95355

     UP93/07/13 P F307

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.