Planning Disk Space and Configuration Requirements

This task is part of Planning Your Siebel Deployment.

Before you install, you must anticipate your disk space requirements for each installable Siebel CRM module. Each Siebel installer displays the required disk space for the installed software before files are copied. Also anticipate the disk space required for Siebel image directories. For more information, see Creating the Siebel Installation Image on the Network.

Siebel installers also have temporary disk space requirements, as described in Managing Temporary Disk Space Required by Siebel Installers and Wizards.

The Siebel CRM architecture is designed to scale across multiple application server computers to meet the needs of large, complex deployments. For assistance in capacity planning and sizing hardware platforms for Siebel CRM server modules, contact your Oracle sales representative or Oracle Advanced Customer Services to request assistance from Oracle’s Application Expert Services.

The number of server computers, the CPU resources, and the memory resources required for operating Siebel CRM increases with the number and types of users and the deployed Siebel CRM modules.

In addition to the disk space required for installation, computers operating Siebel Remote components require approximately 15 MB of usable disk space for each mobile user. Oracle recommends using high-performance and high-availability storage solutions, as appropriate, for Siebel CRM deployments, particularly for high-capacity deployments. Oracle also recommends using high-performance disks or fault-tolerant disk arrays for all server computers, Siebel File System servers, and database servers.

Hardware or software high-availability disk configurations are critical for Siebel Remote servers, Siebel File System servers, and database servers. It is recommended that you configure other Siebel Server computers, Siebel Application Interface computers, and other components to use hardware or software RAID level 1 or comparable configurations.

High-availability solutions, such as clustering, are also recommended on critical components and can be used in conjunction with applicable high-availability storage solutions. Clustering is critical for high availability of the Siebel Gateway, Siebel Remote servers, and the database server. Clustering is also recommended for any Siebel Server computer that is not load-balanced.

Customers are responsible for making sure that clustering is supported on each server component and that the Siebel Server hardware operates with the supported server operating systems and clustering solutions. For supported operating systems and moe information about certifications, see the Certifications tab on My Oracle Support.

It is strongly recommended to deploy Siebel Gateway clustering on multiple computers, as described in Configuring the Siebel Gateway Cluster.

For more information about some of these recommendations, see Siebel Deployment Planning Guide. See also Siebel Performance Tuning Guide.