A fix is available
APAR status
Closed as program error.
Error description
Communications Server for AIX, Version 6.3 ------------------------------------------ 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 number
IZ09984
Reported component name
CS AIX V6.X
Reported component ID
5765E5100
Reported release
630
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2007-12-04
Closed date
2008-01-18
Last modified date
2008-01-23
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
LI73050
Modules/Macros
SNA_V5RO
Fix information
Fixed component name
CS AIX V6.X
Fixed component ID
5765E5100
Applicable component levels
R630 PSY U814355
UP08/01/23 I 1000
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSPQKF","label":"Communications Server for AIX"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"630","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]
Document Information
Modified date:
23 January 2008