9.4.3 Placing user RDAREAs

Organization of this subsection
(1) Relationship with system log files
(2) Relationship with system RDAREAs
(3) Row-partitioned tables

(1) Relationship with system log files

A user RDAREA should not be placed on the same disk as a system log file. When this rule is observed, input/output operations on HiRDB files that constitute system log files and on user RDAREAs can be distributed to multiple disks when a synchronization point dump is collected, thereby reducing the amount of time required for synchronization point dump processing.

(2) Relationship with system RDAREAs

A user RDAREA should not be placed on the same disk as a system RDAREA.

(3) Row-partitioned tables

If you have partitioned a table by row, place the RDAREAs storing the row-partitioned table on separate disks. Figure 9-8 shows an example of user RDAREA placement.

Figure 9-8 Example of user RDAREA placement (HiRDB/Single Server)

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