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Implementing Siebel Business Applications on DB2 for z/OS > Preparing for Implementation on the DB2 Host > Estimating the Storage Space RequiredThe space needed by DB2 varies, depending on the total number and types of users supported. Consult the IBM DB2 for z/OS technical documentation for more information on these requirements. The minimum DB2 storage space required for a typical Innovation Pack 2017 installation on DB2 for z/OS (installation of repository tables and seed data but with no user data loaded into the base tables) is between 5 GB and 20 GB, depending on the DEFINE parameter setting specified when the database objects were created. If database objects are created with the DEFINE parameter set to YES, a DB2 catalog entry is created for the object and a data set is allocated for the object. If database objects are created with the DEFINE parameter set to NO, only a DB2 catalog entry is created for the object, so less space is required. Siebel Business Applications ship all table space and index schema definitions with the DEFINE NO option as the default. Therefore, no physical data sets are created until data is actually inserted into the table space. NOTE: DEFINE NO is only applicable to DB2-managed (STOGROUP) data sets and is ignored for user-managed (VCAT) data sets and for LOB table spaces. The minimum space you require varies depending on the Siebel functionality you implement and the amount and nature of data supporting it. The process for making accurate database size calculations is complex, involving many variables. Use the following guidelines to assist you:
NOTE: If you carry out a repository import and it fails, additional storage space is also required. |
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