LI73050: CSLINUX: SEQUENTIAL ALLOC FOR DEFAULT POOL OF DEPENDANT LU6.2

Communications Server for Linux, Version 6.2.3 -- Latest Fixpack

APAR status

• Closed as program error.

Error description

• Communications Server for Linux, Version 6.2
  ------------------------------------------
  For APPC applications using the default pool of dependant LU 6.2
  LUs, an ALLOCATE request is satisfied by the first available LU
  in the pool. If that LU is experiencing trouble, and the
  application releases it to try a new ALLOCATE, that LU will
  probably be the first available LU again and will continue to be
  assigned to satisfy ALLOCATE requests even though other LUs are
  also available.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of APPC applications when using    *
  *                 the default pool of dependant LU6.2 LUs.     *
  ****************************************************************
  * PROBLEM DESCRIPTION: An application using the default pool   *
  *                      of dependant LU6.2 LUs is assigned the  *
  *                      same LU every time. If that LU is       *
  *                      experiencing a problem on the host,     *
  *                      then the application will never be      *
  *                      able to access the host even though     *
  *                      other LUs are available.                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Allocation of dependant LU6.2 LUs in the default pool is
  performed by selecting the first available LU in the pool
  list. When only one application is using the pool, this
  results in the same LU being assigned every time.
  

Problem conclusion

• The allocation algorithm has been changed to begin searching
  for an available LU starting after the one assigned on the
  previous allocate.
  

Temporary fix

•  sna_v5router64
  

Comments

APAR Information

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

  IZ09984

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

Modules/Macros

• SNA_V5RO
  

Fix information

• Fixed component name

  CS LINUX ON ZSE

• Fixed component ID

  5724I3400

Applicable component levels

• R623 PSY

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