Download e-book for iPad: Advanced DBA Certification Guide and Reference for DB2 UDB by Dwaine R. Snow, Thomas Xuan Phan

By Dwaine R. Snow, Thomas Xuan Phan

Now, there is a definitive advisor to complicated DB2 UDB database management that still can provide all of the intensity and perception you must arrange for the harsh new IBM examination. immediately from the DB2 specialists at IBM, this booklet bargains systematic and authoritative assurance of each examination goal and should function a reference upon getting handed the test.For the 1st time, this ebook brings jointly IBM top practices, innovations, information, guidance, and ideas of thumb for almost each element of complex DB2 UDB v8 database administration-including all this and more:Ability to layout, create, and deal with desk spacesAbility to layout, create, and deal with buffer poolsWhen and the way to use parallelism in DB2 UDBConfiguring federated database accessDesigning and imposing a backup and restoration strategyAbility to enforce a standby databaseMonitoring and tuning DB2Using and handling tables with multidimensional clusteringDesigning and configuring a number of database partitionsImplementing authentication and encryption on a wide scaleLeveraging parallelism and symmetric multiprocessingPreparing for and executing restoration in an firm environmentRapid restoration within the occasion of desk area or desk point disastersEffective tracking and challenge determinationMaximizing functionality and scalability

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Example text

When a container is added to or removed from a table space, the existing data may need to be rebalanced among the new set of containers. Alter Table Space Options The following options can be used to alter a table space: ADD: Used to add one or more containers to the specified table space. When adding a container to a table space, the container can be added to the last stripe set in the table space. If the container is added to an existing stripe set, the stripe set can be explicitly specified using the ADD TO STRIPE SET option.

15. A partitioned database configuration. 1. cfg file. It is required only when there are multiple partitions on the same server. With the various hardware vendors producing larger and larger symmetric multiprocessor (SMP) machines, the creation of multiple database partitions within a server is becoming more prevalent. DB2 works equally well within a single SMP server as it does across multiple servers. To have multiple partitions on the same server, the database partitions must have unique logical ports assigned within the server.

After all extents have been moved, the current table space extent map will be the same as the new table space map. For performance reasons, when the location of an extent in the current table space map is the same as its location in the new table space map, the extent is not moved, and no I/O takes place. NOTE 54 55 The following examples show containers of different sizes within a table space for the purposes of illustration. For performance reasons, it is recommended that containers within a table space be the same size.

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