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Implementing Siebel eBusiness Applications on DB2 UDB for OS/390 and z/OS > Preparing for Implementation on the DB2 Host >
Setting Up the Subsystem
Set up a separate subsystem for Siebel eBusiness Applications, particularly for larger deployments, for the following reasons:
- DSNZPARM optimization. The DSNZPARMs used with this release of Siebel eBusiness Applications are optimized for the Siebel application, but might not be optimal for use with non-Siebel applications. It is recommended, but not required, that you run the Siebel eBusiness Application on its own subsystem.
- OLTP and OLAP characteristics. Siebel applications possess the characteristics of both an OLTP and OLAP application. However, most other vendors' applications have the characteristics of either one or the other.
- Use of Dynamic SQL. Virtually all Siebel eBusiness Applications use dynamic SQL, whereas most other applications typically use static SQL and bound plans.
- DB2 maintenance requirements. This release of Siebel eBusiness Applications requires the application of a number of maintenance activities that are documented in informational APAR ii13487.
CAUTION: It is crucial that you apply everything in informational APAR ii13487 to the subsystem that you set up. Otherwise, operating anomalies and unpredictable behavior might occur.
- System catalog locking during Siebel Database recovery. Recovery of the Siebel Schema might affect other applications on a shared DB2 subsystem if the system catalog becomes locked during the recovery process. Because recovery typically requires the restoration of all Siebel table spaces, locking could last many hours.
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Implementing Siebel eBusiness Applications on DB2 UDB for OS/390 and z/OS Published: 18 April 2003 |