18.2 Determining the size of synchronization point dump files

Organization of this section
(1) Determining the size of a synchronization point dump file
(2) Determining the number of records in a synchronization point dump file

(1) Determining the size of a synchronization point dump file

The following formula is used to determine the size of a synchronization point dump file.

Formula
Size of synchronization point dump file (bytes)
= Number of records in synchronization point dump file1[Figure] 40962
1 See (2) as follows; the obtained value is specified in the -n option of the pdloginit command.
2 This is the record length of a synchronization point dump file.

(2) Determining the number of records in a synchronization point dump file

ConditionFormula for determining the number of records
HiRDB/Single Server[Figure]{1520[Figure](2[Figure]a + 7)} [Figure]4096[Figure]
+ [Figure] (96 + 112 [Figure] c) [Figure] 4096[Figure] + 3
HiRDB/Parallel ServerFront-end server[Figure](320 [Figure] b + 840) [Figure] (2 [Figure] a + 7) [Figure] 4096[Figure] + 4
Back-end server[Figure]{1456[Figure](2[Figure]d + 7) + 64[Figure](2[Figure]d + 7) [Figure](b[Figure]4 + f + 2)} [Figure]4096[Figure]
+ [Figure](96 + 112[Figure]c) [Figure]4096[Figure] + 3
Dictionary server[Figure]{1456[Figure](2[Figure]e + 7) + 64[Figure](2[Figure]e + 7) [Figure](b[Figure]4 + f + 2)} [Figure]4096[Figure]
+ [Figure](96 + 112[Figure]c) [Figure]4096[Figure] + 3
a: Value of the pd_max_users operand + value of the pd_max_reflect_process_count operand
For multi-front-end servers, (value of the pd_max_users operand + value of the pd_max_reflect_process_count operand) + 1
b: Number of back-end servers
c: Value of the pd_lck_until_disconnect_cnt operand
d: Value of the pd_max_bes_process operand + value of the pd_max_reflect_process_count operand
e: Value of the pd_max_dic_process operand + value of the pd_max_reflect_process_count operand
f: Number of front-end servers