340 IBM Content Manager OnDemand Guide
Special attention is required for the following directories:
/SM590000bin: Contains all of the executable files
/SM590000config: Contains the configuration and the index structures
/SM590000log: The log files of the FTS Server
Ensure that the target location has sufficient free disk space for the log files (at least 100 MB). 
Otherwise, the FTS Server stops logging and returns an error code. For more information 
about capacity planning for the config directory and the index size, see 15.3.6, “Index 
considerations” on page 341.
15.3.3  Operating system resources
For better throughput results during the indexing process on AIX, Linux, and Solaris servers, 
ensure that the operating system resource limits are set correctly.
The values of the fsize (maximum file size) and nofiles (maximum number of files that are 
allowed for a process) parameters must be set to unlimited (-1) or 65536 to ensure correct 
system operation. The FTS Server startup script checks these settings and tries to correct 
them for the session. They can be set permanently by modifying the /etc/security/limits or 
/etc/security/limits.conf files.
15.3.4  Workload
Processor consumption depends on the following items:
/SM590000Number of collections
/SM590000Number of documents for each collection
/SM590000Number of concurrently indexed collections
/SM590000Required indexing throughput
/SM590000Query load
For more information, see the capacity planning topics in the introduction and planning guides 
for Multiplatforms and z/OS in the IBM Knowledge Center:
/SM590000http://www.ibm.com/support/knowledgecenter/SSQHWE_9.5.0/com.ibm.ondemandtoc.doc/p
lanning.htm
/SM590000http://www.ibm.com/support/knowledgecenter/SSEPCD_9.5.0/com.ibm.ondemandtoc.doc/p
lanning.htm
A minimum of one processor, 2 GB of RAM, and 8 GB of swap space must be assigned to the 
FTS Server. For more information, see Hardware and Software Requirements:
http://www.ibm.com/support/docview.wss?rs=129&uid=swg27021456
15.3.5  Memory heap size
During indexing and searching, the FTS Server consumes heap memory for storing the 
indexed documents, preprocessing and indexing queues, and indexing memory structures. To 
optimize the performance of the FTS Server, it is important that the maximum heap memory 
size in the Java virtual machine (JVM), the queue size, and file size limits are configured 
correctly. Y ou can configure the maximum heap size by using the configuration tool.
The maxHeapSize parameter sets the maximum heap size for the FTS Server. The default is 
1.5 GB. This value must be a number between 1.5 GB and the amount of available memory.