The size of the memory required for the unit controller from startup to termination of a HiRDB single server configuration is the sum of the process items listed as follows:

Ensure that the size of the shared memory for the entire unit controller does not exceed 2 gigabytes.

Process item	Shared memory calculation formula (bytes)
Scheduler	Value of pd_utl_exec_mode set to 0: {(432 + 304 n) 1,024 + 500 + x + (134 + value of pd_trn_rcvmsg_store_buflen) 1,024} 1,024 Value of pd_utl_exec_mode set to 1: {(432 + 304 n) 1,024 + (m 2,000 + 136) 1,024 + y + (134 + value of pd_trn_rcvmsg_store_buflen) 1,024} 1,024 x: Single server: 116 + 5 (m + 3) + 14 Utility special unit: 0 y: Single server: 5 (m + 3) + 14 Utility special unit: 0 m: Value of pd_max_users + value of pd_max_reflect_process_count n: Number of servers in unit + number of utility servers in unit + 1 Number of utility servers in the unit: 27 + : If there is a single server in the unit, 12; otherwise, 0
Lock server	For a unit other than a utility special unit (320+ 48 + c + d + 48 + 4,096 + g + 48 + i + 48 + 4,096 + 48 + n + t + u + 16) value of pd_lck_pool_partition c: When pd_lck_hash_entry is omitted or 0 is specified: ((8 + 4 MAX(largest prime number that is less than ((p + 3) (value of pd_max_access_tables + 4 + 5 2) + value of pd_lck_pool_size value of pd_lck_pool_partition 6) 10, 11,261)) 16 + 1) 16 When 2 or a greater non-prime number is specified for pd_lck_hash_entry: ((8 + 4 largest prime number that is less than the value of pd_lck_hash_entry) 16 + 1) 16 When 1 or a prime number is specified for pd_lck_hash_entry: ((8 + 4 value of pd_lck_hash_entry) 16 + 1) 16 d: ((p + 3) (value of pd_max_access_tables + 4 + 5 2) + value of pd_lck_pool_size value of pd_lck_pool_partition 6) 96 g: When value of pd_utl_exec_mode = 1 and p > 32: ((p + 3) 3 + p) 256 When value of pd_utl_exec_mode = 0 or p 32: ((p + 3) 3 + 32) 256 i: When value of pd_utl_exec_mode = 1 and p > 32: ((value of pd_lck_pool_size value of pd_lck_pool_partition 8 + ((p + 3) (value of pd_max_access_tables + 4)) 2) + p (value of pd_max_rdarea_no + 1) + (p + 3) 2 2 5) rounded up to the next even value 64 When value of pd_utl_exec_mode = 0 or p 32: ((value of pd_lck_pool_size value of pd_lck_pool_partition 8 + ((p + 3) (value of pd_max_access_tables + 4)) 2) + 32 (value of pd_max_rdarea_no + 1) + (p + 3) 2 2 5) rounded up to the next even value 64 n: When value of pd_utl_exec_mode = 1 and p > 32: ((p + 3) 3 + p) 48 When value of pd_utl_exec_mode = 0 or p 32: ((p + 3) 3 + 32) 48 p: value of pd_max_users + value of pd_max_reflect_process_count t: When value of pd_utl_exec_mode = 1 and p > 32: 48 + ((p + 3) 3 + p) value of pd_max_open_holdable_cursors 16 4 When value of pd_utl_exec_mode = 0 or p 32: 48 + ((p + 3) 3 + 32) value of pd_max_open_holdable_cursors 16 4 u: When value of pd_utl_exec_mode = 1 and p > 32: 48 + ((value of pd_lck_pool_size value of pd_lck_pool_partition 8 + ((p + 3) (value of pd_max_access_tables + 4)) 2) + p (value of pd_max_rdarea_no + 1) + (p + 3) 2 2 5) rounded up to the next even value value of pd_max_open_holdable_cursors 16 4 When value of pd_utl_exec_mode = 0 or p 32: 48 + ((value of pd_lck_pool_size value of pd_lck_pool_partition 8 + ((p + 3) (value of pd_max_access_tables + 4)) 2) + 32 (value of pd_max_rdarea_no + 1) + (p + 3) 2 2 5) rounded up to the next even value value of pd_max_open_holdable_cursors 16 4 For a utility special unit 8,416
Transaction server	288 + 32 + 192 m 2 + 1,028 + (420 + 564 + 256 + 384 2 + 128) m 2 + 7) + 256 2 m: Value of pd_max_users + value of pd_max_reflect_process_count
Timer server	32 (value of pd_max_users + value of pd_max_reflect_process_count + 3) (1 + number of utility servers in unit + 1) + 1,440 Number of utility servers in unit is 26 + : For HP-UX, Solaris, and AIX, with a single server in the unit: 12. For Linux, with a single server in the unit: 3.
Statistics log server	384 + 128 16 + 32 + 288 2 + 1,024 + 128 3 + value of pd_stj_buff_size 1,024 3 + 64 + 4,096 + 8,192
Process server	192 + 512 a + 80 + 256 + (value of pd_max_server_process + 50) (256 + 144) + 16 + 8 16 + 16 + 16 + 48 + 48 (b + 1) a: For a single server: 131 For a utility special unit: 106 b: If the operand pd_module_trace_max is specified in the system common definition or the unit control information definition: value of pd_module_trace_max If not: 16,383
Single server	640 + (44 + 4) a 2 + (100 + 4) (b + 30 + 2) + (100 + 4) (c + 1) + 40 b 14 + 256 + 256 + 36 d + 12 e + 8 + 5,844 + 224 + f + 16 + 1,024 + 272 h a: Number of single server definitions b: Number of single servers in unit c: Number of units d: Number of -c options specified in pdunit operand e: Number of pdcltgrp operands specified f: 2,052 + 128 (g + 3) g: For a single server: 92. For a utility special unit: 74. h: Number of IP addresses for hosts specified in the pd_security_host_group operand If the pd_security_host_group operand is not specified, 0
Name server	169,984
Node manager	(1,152 + 432 total number of units + 80 total number of servers + 7,680 + 1,008 + 56 number of servers in unit + 240 A + 44 A + 28 A + 16 B + 32) 1,024 1,024 A: pd_utl_exec_mode = 0: 1,024 pd_utl_exec_mode = 1 and the unit contains a single server: Value of pd_max_users 10 + 400 pd_utl_exec_mode = 1 and the unit contains no single server: Value of pd_max_users 7 If the value of A does not exceed 1,024, use 1,024 as the value of A. B: pdcltgrp operand not specified: 0 pdcltgrp operand specified: Number of pdcltgrp operands specified + 1
I/O server	(28 + ((32 + A) 32 32)) 128 128 A: 3,248 + (14 + 16) 972 + 1 276 + 534 276 + 16 276 + value of pd_max_file_no 972 For utility special unit, the size is (3,248 + (14 + 16) 972 + 1 276) bytes.
Log server	32 + 48 + 128 19 + 384 + 128 7 + 1,024 + 512 + (128 + 256 + 160 + 8 + 64) value of pd_log_rec_leng value of pd_log_rec_leng + 64 + 4,096 2 + (736 + 512) B + 128 value of pd_log_write_buff_count + (value of pd_log_write_buff_count + A) {value of pd_log_max_data_size + (68 + 44 + 96 + 160)} 4,096 4,096 + C + {(B + 1) 12} 8,320 Add this when the pd_max_reflect_process_count operand is specified. 128 + 704 A: 16 B: Number of pdlogadfg -d sys operands specified C: 0
Synchronization point dump server	(368 + 1,456 2) 1,024 1,024 + {(96 + 80 + 208 + 208) + 192 (number of pdlogadfg -d spd operands specified) + 416 (number of pdlogadpf -d spd operands specified) + 1,023} 1,024 1,024
Common to all units	a + b + 64 + (m + 3) c + 64 + 48 + d + e + (value of pd_max_server_process 2 + 100) (48 + 16) + 32 + (value of pd_max_server_process 2 + 100 + 384) 32 + 32 + f + g + h + i + q + (value of pd_max_server_process + 127 + r) 32 + 32 a: 25,248 + p 4 b: 2,988 c: 1,956 d: 32 32 e: 64 + 64 {(m + 3) 2 + MAX (5, (m + 3] 10) + 7} f: 512 (13 + 3) 2 g: {(96 + value of pd_lck_until_disconnect_cnt 112 + 4,095) 4,096} 4,096 2 h: (number of port numbers specified with pd_registered_port 16 + 32 + 1,023) 1,024 1,024 If pd_registered_port is omitted: 0 i: If k is 2 or more, 32 + (8 + 8 k) n Otherwise, 0 k: Value of pd_lck_pool_partition m: Value of pd_max_users + value of pd_max_reflect_process_count n: (m + 3) 2 + MAX{5, (m + 3) 10} + 7 p: If Y is specified for pd_dbbuff_modify: 512 + value of pd_max_add_dbbuff_shm_no Otherwise: 512 q: 144 r: When the value of pd_utl_exec_mode is set to 1 and m > 32: (m + 3) 3 + m When the value of pd_utl_exec_mode is set to 0 or m 32: (m + 3) 3 + 32
Transaction log server	1,024 + 512 A + { 128 B + 128 + [F + (128 + 256 + 8 + 224) value of pd_log_rec_leng value of pd_log_rec_leng + (value of pd_log_max_data_size + 68 + 44 + 96 + 160) value of pd_log_lec_leng value of pd_log_rec_leng ] D + E + (48 + 8) B 2 } number of servers in unit + 584 B + 128 B + 64 B C + 128 + { F + (128 + 256 + 8 + 224) value of pd_log_rec_leng value of pd_log_rec_leng + (value of pd_log_max_data_size + 68 + 44 + 96 + 160) value of pd_log_lec_leng value of pd_log_rec_leng } + E + (48 + 8) (B 2 + 2) A: 2 B: 7 + (value of pd_max_users + value of pd_max_reflect_process_count) 2 C: 1 D: For a single server, if the value of pd_log_rollback_buff_count is 0, D is 8; otherwise, it is the value of pd_log_rollback_buff_count For a utility special unit, 0 E: 0 F: 60
Status server	64 32 32
Audit trail management server	A 1,024 1,024 A: 640 if the pd_aud_file_name operand is omitted 640 + (304 200) + B + C if the pd_aud_file_name operand is specified B: 0 if the pd_aud_async_buff_size operand value is 0 The following value if the pd_aud_async_buff_size operand value is 4,096 or greater: For Linux: (160 value of pd_aud_async_buff_count operand) + {(value of pd_aud_async_buff_size operand 4,096 4,096) value of pd_aud_async_buff_count operand} + 4,096 For a system other than Linux: (160 value of pd_aud_async_buff_count operand) + {(value of pd_aud_async_buff_size operand 4,096 4,096) value of pd_aud_async_buff_count operand} C: If N is specified for the pd_aud_auto_loading operand, 0 If Y is specified for the pd_aud_auto_loading operand, 256 2 + 240

The size of the memory required for the unit controller from startup to termination of a HiRDB single server configuration is the sum of the process items listed as follows:

Process item	Shared memory calculation formula (bytes)
Scheduler	Value of pd_utl_exec_mode set to 0: {(432 + 304 n) 1,024 + 500 + x + (134 + value of pd_trn_rcvmsg_store_buflen) 1,024} 1,024 Value of pd_utl_exec_mode set to 1: {(432 + 304 n) 1,024 + (m 2,000 + 136) 1,024 + y + (134 + value of pd_trn_rcvmsg_store_buflen) 1,024} 1,024 x: Single server: 116 + 5 (m + 3) + 14 Utility special unit: 0 y: Single server: 5 (m + 3) + 14 Utility special unit: 0 m: Value of pd_max_users + value of pd_max_reflect_process_count n: Number of servers in unit + number of utility servers in unit + 1 Number of utility servers in the unit: 27 + : If there is a single server in the unit, 12; otherwise, 0
Lock server	For a unit other than a utility special unit (496 + 80 + c + d + 64 + 8,192 + g + 80 + i + 64 + 8,192 + 64 + n + t + u + 16) value of pd_lck_pool_partition c: When pd_lck_hash_entry is omitted or 0 is specified: ((8 + 8 MAX(largest prime number < ((p + 3) (value of pd_max_access_tables + 4 + 5 2) + value of pd_lck_pool_size value of pd_lck_pool_partition 4) 10 , 11,261)) 16 + 1) 16 When 2 or a greater non-prime number is specified for pd_lck_hash_entry: ((8 + 8 largest prime number < value of pd_lck_hash_entry) 16 + 1) 16 When 1 or a prime number is specified for pd_lck_hash_entry: ((8 + 8 value of pd_lck_hash_entry) 16 + 1) 16 d: ((p + 3) (value of pd_max_access_tables + 4 + 5 2) + value of pd_lck_pool_size value of pd_lck_pool_partition 4) 128 g: When value of pd_utl_exec_mode = 1 and p > 32: ((p + 3) 3 + p) 320 When value of pd_utl_exec_mode = 0 or p 32: ((p + 3) 3 + 32) 320 i: When value of pd_utl_exec_mode = 1 and p > 32: ((value of pd_lck_pool_size value of pd_lck_pool_partition 5 + ((p + 3) (value of pd_max_access_tables + 4)) 2) + (value of pd_lck_pool_size value of pd_lck_pool_partition) 3 + p (value of pd_max_rdarea_no + 1) + (p + 3) 2 2 5) rounded up to the next even value 112 When value of pd_utl_exec_mode = 0 or p 32: ((value of pd_lck_pool_size value of pd_lck_pool_partition 5 + ((p + 3) (value of pd_max_access_tables + 4)) 2) + (value of pd_lck_pool_size value of pd_lck_pool_partition) 3 + 32 (value of pd_max_rdarea_no + 1) + (p + 3) 2 2 5) rounded up to the next even value 112 n: When value of pd_utl_exec_mode = 1 and p > 32: ((p + 3) 3 + p) 80 When value of pd_utl_exec_mode = 0 or p 32: ((p + 3) 3 + 32) 80 p: value of pd_max_users + value of pd_max_reflect_process_count t: When value of pd_utl_exec_mode = 1 and p > 32: 48 + ((p + 3) 3 + p) value of pd_max_open_holdable_cursors 16 4 When value of pd_utl_exec_mode = 0 or p 32: 48 + ((p + 3) 3 + 32) value of pd_max_open_holdable_cursors 16 4 u: When value of pd_utl_exec_mode = 1 and p > 32: 48 + ((value of pd_lck_pool_size value of pd_lck_pool_partition 5 + ((p + 3) (value of pd_max_access_tables + 4)) 2) + value of pd_lck_pool_size value of pd_lck_pool_partition 3 + p (value of pd_max_rdarea_no + 1) + (p + 3) 2 2 5) rounded up to the next even value value of pd_max_open_holdable_cursors 16 4 When value of pd_utl_exec_mode = 0 or p 32: 48 + ((value of pd_lck_pool_size value of pd_lck_pool_partition 5 + ((p + 3) (value of pd_max_access_tables + 4)) 2) + value of pd_lck_pool_size value of pd_lck_pool_partition 3 + 32 (value of pd_max_rdarea_no + 1) + (p + 3) 2 2 5) rounded up to the next even value value of pd_max_open_holdable_cursors 16 4 For a utility special unit 16,704
Transaction server	304 + 32 + 192 m 2 + 1,048 + (416 + 720 + 256 + 392 2 + 128) (m 2 + 7) + 256 2 m: Value of pd_max_users + value of pd_max_reflect_process_count
Timer server	32 (value of pd_max_users + value of pd_max_reflect_process_count + 3) (1 + number of utility servers in unit + 1) + 1,440 + (48 - 32) 2 Number of utility servers in unit is 26 + : For HP-UX, Solaris, and AIX, with a single server in the unit: 12. For Linux, with a single server in the unit: 3.
Statistics log server	424 + 128 16 + 32 + 288 2 + 1,168 + 144 3 + value of pd_stj_buff_size 1,024 3 + 64 + 4,096 + 8,192
Process server	208 + 528 a + 80 + 256 + (value of pd_max_server_process + 50) (256 + 160) + 16 + 8 16 + 16 + 16 + 64 + 64 (b + 1) a: For a single server: 131 For a utility special unit: 106 b: If the operand pd_module_trace_max is specified in the system common definition or the unit control information definition: value of pd_module_trace_max If not: 16,383
Single server	736 + (48 + 8) a 2 + (112 + 8) (b + 30 + 2) + (104 + 8) (c + 1) + 40 b 14 + 256 + 256 + 40 d + 16 e + 8 + 5,864 + 256 + f + 16 + 1,024 + 272 h a: Number of single server definitions b: Number of single servers in unit c: Number of units d: Number of -c options specified in pdunit operand e: Number of pdcltgrp operands specified f: 2,056 + 128 (g + 3) g: For a single server: 92. For a utility special unit: 74. h: Number of IP addresses for the host specified in the pd_security_host_group operand If the pd_security_host_group operand is not specified, 0
Name server	169,984
Node manager	(1,312 + 464 total number of units in HiRDB system + 96 total number of servers in HiRDB system + 10,240 + 1,200 + 72 number of HiRDB servers in the unit + 240 A + 44 A + 28 A + 16 B + 48) 1,024 1,024 A: pd_utl_exec_mode = 0: 1,024 pd_utl_exec_mode = 1 and the unit contains a single server: (value of pd_max_users + value of pd_max_reflect_process_count) 10 + 400 pd_utl_exec_mode = 1 and the unit contains no single server: (value of pd_max_users + value of pd_max_reflect_process_count) 7 If the value of A does not exceed 1,024, use 1,024 as the value of A. B: pdcltgrp operand not specified: 0 pdcltgrp operand specified: Number of pdcltgrp operands specified + 1
I/O server	(56 + ((56 + A) 32 32)) 128 128 A: 3,248 + (14 + 16) 972 + 1 276 + 534 276 + 16 276 + value of pd_max_file_no 972 + (48 - 32) 3 For a utility special unit: (3,248 + (14 + 16) 972 + 1 276) + (48 - 32) 3 bytes
Log server	32 + 48 + 128 19 + 432 + 128 7 + 1,168 + 512 + (128 + 256 + 160 + 8 + 64) value of pd_log_rec_leng value of pd_log_rec_leng + 64 + 4,096 2 + (768 + 512) B + 144 value of pd_log_write_buff_count + (value of pd_log_write_buff_count + A) {value of pd_log_max_data_size + (68 + 44 + 96 + 160)} 4,096 4,096 + C + {(B + 1) 12} 8,320 Add this when the pd_max_reflect_process_count operand is specified. 128 + 704 A: 16 B: Number of pdlogadfg -d sys operands specified C: 0
Synchronization point dump server	(384 + 1,536 2) 1,024 1,024 + {(128 + 80 + 240 + 240) + 192 (number of pdlogadfg -d spd operands specified) + 416 (number of pdlogadpf -d spd operands specified) + 1,023} 1,024 1,024
Common to all units	a + b + 80 + (m + 3) c + 64 + 48 + d + e + (value of pd_max_server_process 2 + 100) (64 + 16) + 32 + (value of pd_max_server_process 2 + 100 + 384) 32 + 32 + f + g + h + i + q + (value of pd_max_server_process + 127 + r) 48 + 32 a: 34,656 + p 4 b: 3,480 c: 2,760 d: 48 32 e: 80 + 96 {(m + 3) 2 + MAX (5, (m + 3] 10) + 7} f: 512 (13 + 3) 2 g: {(128 + value of pd_lck_until_disconnect_cnt 112 + 4,095) 4,096} 4,096 2 h: (number of port numbers specified with pd_registered_port 16 + 32 + 1,023) 1,024 1,024 If pd_registered_port is omitted: 0 i: If k is 2 or more, 32 + (8 + 8 k) n Otherwise, 0 k: Value of pd_lck_pool_partition m: Value of pd_max_users + value of pd_max_reflect_process_count n: (m + 3) 2 + MAX{5, (m + 3) 10} + 7 p: If Y is specified for pd_dbbuff_modify: 512 + value of pd_max_add_dbbuff_shm_no + value of pd_max_resident_rdarea_shm_no Otherwise: 512 + value of pd_max_resident_rdarea_shm_no q: HP-UX (IPF) 64-bit mode: 256 Otherwise: 144 r: When the value of pd_utl_exec_mode is set to 1 and m > 32: (m + 3) 3 + m When the value of pd_utl_exec_mode set to 0 or m 32: (m + 3) 3 + 32
Transaction log server	1,168 + 688 A + { 128 B + 144 + [G + (128 + 256 + 8 + 224) value of pd_log_lec_leng value of pd_log_rec_leng + (value of pd_log_max_data_size + 68 + 44 + 96 + 160) value of pd_log_lec_leng value of pd_log_rec_leng] D + E + (48 + 8) B 2 } number of servers in unit + 600 B + 128 B + 64 B C + 144 + { G + (128 + 256 + 8 + 224) value of pd_log_lec_leng value of pd_log_rec_leng + value of pd_log_max_data_size + 68 + 44 + 96 + 160) value of pd_log_lec_leng value of pd_log_rec_leng } + E + (48 + 8) (B 2 + 2) A: 2 B: 7 + (value of pd_max_users + value of pd_max_reflect_process_count) 2 C: 1 D: For a single server, if the value of pd_log_rollback_buff_count is 0, D is 8; otherwise, it is the value of pd_log_rollback_buff_count For a utility special unit, 0 E: 0 G: 64
Status server	64 32 32
Audit trail management server	A 1,024 1,024 A: 704 if the pd_aud_file_name operand is omitted 704 + (320 200) + B + C if the pd_aud_file_name operand is specified B: 0 if the pd_aud_async_buff_size operand value is 0 The following value if the pd_aud_async_buff_size operand value is 4,096 or greater: For Linux version: (176 value of pd_aud_async_buff_count operand) + {(value of pd_aud_async_buff_size operand 4,096 4,096) value of pd_aud_async_buff_count operand} + 4,096 For non-Linux versions: (176 value of pd_aud_async_buff_count operand) + {(value of pd_aud_async_buff_size operand 4,096 4,096) value of pd_aud_async_buff_count operand} C: If N is specified for the pd_aud_auto_loading operand, 0 If Y is specified for the pd_aud_auto_loading operand, 256 2 + 256