By Dwaine R. Snow, Thomas Xuan Phan
Now, there is a definitive consultant to complicated DB2 UDB database management that still offers the entire intensity and perception you must arrange for the cruel new IBM examination. instantly from the DB2 specialists at IBM, this publication bargains systematic and authoritative assurance of each examination aim and may function a reference upon getting handed the test.For the 1st time, this publication brings jointly IBM top practices, innovations, assistance, guidance, and ideas of thumb for nearly each element 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 coping 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 company environmentRapid restoration within the occasion of desk house or desk point disastersEffective tracking and challenge determinationMaximizing functionality and scalability
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Additional info for Advanced DBA Certification Guide and Reference for DB2 UDB v8 for Linux, Unix and Windows
Containers 0 0 3 (0, 1, 2) 1 (0) To add more space to the table space, containers cont2 and cont3 can be increased in size by one extent. This adds space above the existing high water mark, coincidentally ensuring that no rebalance takes place. This could be done using either of the following statements: ALTER TABLESPACE tblspc EXTEND (FILE '/tblspcs/cont2' 10, FILE '/tblspcs/cont3' 10) ALTER TABLESPACE tblspc RESIZE (FILE '/tblspcs/cont2' 50, FILE '/tblspcs/cont3' 50) This would cause DB2 to build a new table space extent map, as shown below.
Max Page: The maximum page number found in the range. • Start Stripe: The number of the stripe where the range starts in the map. • End Stripe: The number of the stripe where the range ends in the map. • Adj: This is known as the adjustment, and it specifies how far a range is shifted during a rebalance. • Containers: The array of containers that are part of the range. For the table space created using: CREATE TABLESPACE dmsfiletbspc MANAGED BY DATABASE USING (FILE '/tbspcs/cont1' 50, FILE '/tbspcs/cont2' 50, FILE '/tbspcs/cont3' 50) EXTENTSIZE 10 PREFETCHSIZE 30 the extent map would look like the following: The table space map would look like the following: Range Number  Stripe Set  Stripe Offset 0 Max Extent 11 Max Page 119 Start Stripe 0 End Stripe 3 Adj.
This can be applied to a specific container or to all containers, using the ALL CONTAINERS clause. 41 42 RESIZE: Used to change the size of existing containers to the specified size. This can be applied to a specific container or to all containers, using the ALL CONTAINERS clause. When resizing more than one container, they must all be increased or decreased in size. It is not possible to increase the size of some containers while reducing the size of other containers. When altering a table space, it is possible to perform multiple operations within the same command.