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This topic is part of Planning Your Siebel Deployment.
Before you install, you must anticipate your disk space requirements for each installable Siebel 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 Enterprise Server 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 Enterprise Server, 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 Business Applications 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 15 MB of usable disk space for each mobile user. Oracle recommends using high-performance and high-availability storage solutions, as appropriate, for deployments of Siebel Business Applications, 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 application servers, Siebel Web servers, and other Siebel Server 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 Name Server, Siebel Remote servers, and the database server. Clustering is also recommended for any application server computer that is not load-balanced. See also Planning Siebel Server Load Balancing and related topics.
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 supported Web servers, see the Certifications tab on My Oracle Support. For more information, see 1492194.1 (Article ID) on My Oracle Support.
NOTE: Some of the information in this topic was formerly presented in Siebel System Requirements and Supported Platforms on Oracle Technology Network. Use the requirements described in this topic as a guideline. The requirements do not take into consideration various factors that affect scalability and performance.
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