pdfmkfs -n 50 -l 10 -k DB -i /rdarea/area03
pdfmkfs -n 50 -l 10 -k DB -i /rdarea/area13
 

Explanation

-n: Specifies in megabytes the size of the HiRDB file system area. Use the database condition analysis utility (pddbst command) to analyze the status of the existing RDAREAs, and, taking existing RDAREAs into account, estimate the size of the RDAREAs to be added from the volume of data to be migrated.

-l: Specifies the maximum number of HiRDB files to be created in the HiRDB file system area.

-k: Specifies the purpose of the HiRDB file system area. Specify DB to create a HiRDB file system area for RDAREAs.

-i: Specifies that the entire HiRDB file system area is to be initialized. When the -i option is specified, the entire area is allocated. When the -i option is omitted, only management information for the HiRDB file system area is created.

/rdarea/area03: Specifies a name for the HiRDB file system area that is to be created for RDAREAs to be used to store tables.

/rdarea/area13: Specifies the name of the HiRDB file system area that is to be created for RDAREAs to be used to store indexes.

 
pdmod -a /pdmod/create01
 

Explanation

-a: Specifies the name of the control statements file for the pdmod command. Below is an example of a control statements file. For details on the operands, see the manual HiRDB Version 8 Command Reference.

create rdarea RDAREA03 globalbuffer gbuf03 for user used by PUBLIC server name bes1 page 4096 characters storage control segment 10 pages file name "/rdarea/area03/file01" initial 1000 segments; create rdarea RDAREA13 globalbuffer gbuf13 for user used by PUBLIC server name bes1 page 4096 characters storage control segment 10 pages file name "/rdarea/area13/file01" initial 1000 segments;

 
ALTER TABLE TABLE01
    ADD RDAREA RDAREA03
      FOR INDEX INDX01 IN RDAREA13;
 

An RDAREA for storing table data (RDAREA03) and an RDAREA for storing indexes (RDAREA13) have been added. The number of row partitions in TABLE01 has now been increased from 2 to 3.

(a) Execution in shared mode

 
pdrbal -k share -t TABLE01 -c 100 /pdrbal/cfile01
 

Explanation

-k: Specifies share for execution in the shared mode.

-t: Specifies the name of the rebalancing table.

-c: Specifies the unit of commitment.

/pdrbal/cfile01: Specifies the name of the control statements file for the pdrbal command. The following are the contents of the control statements file:

report /tmp/output execstop time,9:00

Explanation

report: Specifies the output destination for the execution results of the pdrbal command.

execstop: Specifies the execution time for the pdrbal command.

(b) Execution in exclusive mode

 
pdrbal -k exclusive -t TABLE01 -l a /pdrbal/cfile01
 

Explanation

-k: Specifies exclusive for execution in the exclusive mode.

-t: Specifies the name of the rebalancing table.

-l: Specifies the method for collecting the database updates log. In this example, the log acquisition mode is specified.

/pdrbal/cfile01: Specifies the name of the control statements file for the pdrbal command. The following are the contents of the control statements file:

report /tmp/output idxwork /index/work sort /sort/work

Explanation

report: Specifies the output destination for the execution results of the pdrbal command.

idxwork: Specifies the name of the directory for output of the index information file.

sort: Specifies the name of the work directory for sorting.

If necessary, use the optimizing information collection utility (pdgetcst command) to collect optimization information for the table. For details about whether or not execution of the optimizing information collection utility is required, see the manual HiRDB Version 8 Command Reference.

 
pdgetcst -t TABLE01 -l /pdgetcst/output
 

Explanation

-t: Specifies the name of the table for which optimization information is to be collected.

-l: Specifies the output destination for the execution results of the pdgetcst command.

It is recommended that after the command has executed you check whether or not the execution results are correct. For details on how to check command execution results, see the manual HiRDB Version 8 Command Reference.