Support for large files

The standard file system on AIX® has a 2-GB file size limit, regardless of the ulimit setting. The AIX operating system file system that holds a large directory server can grow beyond the default size limits that are imposed by AIX.

After the file size limit is reached, the directory server ceases to function properly. You can consider the following options ensure that the files can grow beyond the default limits set on an AIX operating system:

• You must create the file system as Enhanced Journaled File Systems or as Journaled File Systems (JFS2) with Large File Enabled to hold a directory server. You must also consider the file system with Large File Enabled for the DB2® instance home directory and for the bulkload temporary directory. The default path of bulkload temporary directory is instance_home/tmp.
• You must set the soft file size limit for the root, directory server, and the DB2 instance owner users to -1. A soft file size limit of -1 for a user specifies the maximum file size for that user as unlimited. You can change the soft file size limit with the smitty chuser command. A user must log off and log in for the changed soft file size limit to take effect. You must also restart DB2.

For more information about the file system options, see AIX documentation.