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 consultant to complex DB2 UDB database management that still promises all of the intensity and perception you want to organize for the cruel new IBM examination. immediately from the DB2 specialists at IBM, this ebook bargains systematic and authoritative insurance of each examination target and may function a reference upon getting handed the test.For the 1st time, this e-book brings jointly IBM top practices, concepts, information, guidance, and ideas of thumb for almost each point of complicated 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 dealing with 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 house or desk point disastersEffective tracking and challenge determinationMaximizing functionality and scalability

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Extra info for Advanced DBA Certification Guide and Reference for DB2 UDB v8 for Linux, Unix and Windows

Example text

Using the table space created above, a container can be added in the following three ways. 38 39 Because the new container is not large enough to go from Stripe 0 to the end of the existing table space, it is added such that its last extent lines up with the highest stripe currently in the table space. In this case, the container is just large enough to go from Stripe 0 to the end of the existing table space, so it will be added and begin at Stripe 0. 39 40 In this case, the container is more than large enough to go from Stripe 0 to the end of the existing table space, so it will be added to begin at Stripe 0 and extend past the current last stripe for the table space.

Containers 0 0 0 3(0, 1, 2) 2(0, 2) 1(0) Altering a Table Space The ALTER TABLESPACE statement is used to modify the storage or I/O characteristics of an existing table space. Although the I/O characteristics can be modified for both SMS and DMS table spaces, the storage characteristics can generally be modified only for DMS table spaces. The ALTER TABLESPACE statement can be used to add containers to existing DMS table spaces or to remove existing containers from a DMS table space. A container cannot be removed from an SMS table space and can be added to an SMS table space only on a partition where there are no existing containers for the table space using the system container clause.

Log and the administration notification log files. The /DTSF option for DB2DART will also dump the table space extent map for the specified table space. The extent that is currently being relocated will have a range that is only one extent long. By running the DB2DART tool at set intervals and examining the currently moving extents, it is possible to estimate the rate at which the rebalance is progressing and to estimate how much time is left. For example, in the following table space extent map, Extent 70 is currently being rebalanced.

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