Performance Tuning for Content Manager

Chapter 7. Tuning operating systems for Content Manager 153

Default value

1024

How to do it

1. Log in as root.

2. Type smitty.

3. Click System Environments → Change/Show Characteristics of

Operating System.

4. Change the value for Maximum number of PROCESSES allowed per user

to a higher value.

Our recommendation

For a system with a large number of concurrent users, you might need to

increase it up to as high as 8192. Check the number of processes that are

running in your system and the number of the concurrent users in your system,

and increase this number accordingly.

7.2.2 Use JFS2 and EJFS for logical volumes and file systems

For AIX 5L™, define your logical volumes and file systems using Journaled File

System 2 (JFS2) and Enhanced Journaled File System (EJFS). This is

necessary to manage the high volume of documents that Content Manager

creates and manages on the same file system.

Enhanced Journaled File System (EJFS) uses database journal techniques to

keep its structure consistent. This prevents damage to the file system if the

system is halted abnormally. EJFS supports both 32-bit and 64-bit file system

semantics. It supports 4-petabyte file systems and dynamically allocates

inodes so that disk space is not wasted on unused inodes.

Journaled File System 2 (JFS2) is an enhanced and updated version of the

Journaled File System (JFS) on AIX V4.3, and previous releases. JFS2

provides a robust, quickly restartable, transaction-oriented, log-based,

scalable byte-level file system implementation for AIX environments. JFS2

features also include extent-based allocation, sorted directories, and dynamic

space allocation for file system objects. Although tailored primarily for the high

throughput and reliability requirements of servers, JFS2 is also applicable to

client configurations where performance and reliability are desired.