IT03537: IWNR2072E ERROR CAN OCCUR WHEN GETTING LOGS OF DISCONNECTS ON A DS8K DEVICE

APAR status

• Closed as program error.

Error description

• Long delays from an ESSNI query will circumvent the re-query
  logic that is supposed to check whether the volume has a
  relationship after the session has once again reconnected to the
   device.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * TPC-R Users who have connect to a DS8000 HMC device can      *
  * experience this if there is lots of network latency, network *
  * errors, or if the device is busy and takes longer to         *
  * respond.                                                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * | fix pack | 5.2.3-TIV-TPC-FP0000 - target 3Q 2014 |         *
  *                                                              *
  *                                                              *
  * http://www-01.ibm.com/support/docview.wss?&uid=swg21320822   *
  *                                                              *
  * The target dates for future fix packs do not represent a     *
  * formal                                                       *
  * commitment by IBM. The dates are subject to change without   *
  * notice.                                                      *
  *                                                              *
  * Extra latency on the network can delay the response time     *
  * from the DS8000 device and  circumvent the re-query logic if *
  * the response takes more that one minute from the first       *
  * query.                                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Check network and DS8000 to determine what is causing the    *
  * network latency.                                             *
  ****************************************************************
  

Problem conclusion

• If defined relationships are found a new query will be driven to
  ensure that the state of the pair is up to date.
  

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:

Fix information

• Fixed component name

  TPC

• Fixed component ID

  5608TPC00

Applicable component levels

• R511 PSY

     UP

• R520 PSY

     UP