Upgrade Guide for DB2 UDB for z/OS > Basic Database Preparations >

Securing AIX Memory Allocation Segment Space

Upgrades: All upgrades.

Environments: All environments.

Platforms: UNIX only.

This topic is part of an upgrade process. See How to Perform the Upgrade.

Before you run an upgrade on AIX, set the following environment variable on the AIX machine that you are using for the upgrade:

setenv LDR_CNTRL LOADPUBLIC@MAXDATA=0x60000000

This will prevent a shortage of memory allocation segment space that might occur on the machine where both the Siebel Database Server and Siebel Server are installed.

After a successful upgrade, reset this parameter to the original value.