Type	Formula
Number of message queue identifiers	(16 + f) a + 30
Number of semaphore identifiers	{{2 (b + 3) + 12} 64 + c 64 + g + 5 } a + 2 + d
Number of semaphores(Total number of semaphores per identifier)	{2 (b + 3) + c + h + 37} a + 3 + e

a: 1 (single server) or 0 (utility special unit)

b: Value of pd_max_users operand + value of pd_max_reflect_process_count operand.

c: Number of pdbuffer operands specified (number of global buffers)

d: Add when the system switchover facility is being used; determine the value from the table below.

e: Add when the system switchover facility is being used; determine the value from the following table:

Condition			Value of d	Value of e
pd_ha_acttype=monitor (or default)			0	0
pd_ha_acttype= server	pd_ha_agent=standbyunit		1	7
	pd_ha_agent omitted	pd_ha_server_process_standby=Y (or default)	1	2
		pd_ha_server_process_standby=N	0	1

f: 1 (if 1 or greater is specified in the pd_max_ard_process operand) or 0

g: 2 (if a value is specified in the pd_dfw_awt_process operand) or 0

h: Value of the pd_dfw_awt_process operand + 1 (if a value is specified in the pd_dfw_awt_process operand) or 0

For details about the variables used in the formulas, see (c) Variables used in the formulas.

(a) When the standby-less system switchover (effects distributed) facility is not used

Type	Formula
Number of message queue identifiers	b Vi + 2 a + 3 b + c + d + e + 26 + m i = 1
Number of semaphore identifiers	b {(Si + Ti + Ui) 64 + Wi} + 6 b + 2 + f i = 1
Number of semaphores (total number of semaphores per identifier)	b (Si + Ti + Ui + Xi) + 26 b + 3 + g i = 1

(b) When the standby-less system switchover (effects distributed) facility is used

Type	Formula
Number of message queue identifiers	b Vi + 2 a + 3 b + c + d + e + 26 + m i = 1
Number of semaphore identifiers	b {{Yi (j + k)} 64 + Wi} + 6 b + 2 + f i = 1
Number of semaphores (total number of semaphores per identifier)	b {Yi (j + k) + Xi} + 26 b + 3 + g i = 1

(c) Variables used in the formulas

a: Number of front-end servers in the server machine

b: Number of dictionary servers in the server machine + n

c: 4 (front-end server) or 0 (other server)

d: 8 (dictionary server) or 0 (other server)

e: 16 n (back-end server) or 0 (other server)

f and g: Add when the system switchover facility is being used; determine the value from the table below.

Condition			Value of f	Value of g
pd_ha_acttype=monitor (or omitted)			0	0
pd_ha_acttype=server	pd_ha_agent=standbyunit		1	h
	pd_ha_agent=server		1	6 + 2 (number of BESs in the unit to which standby-less system switchover (1:1) is applied)
	pd_ha_agent=activeunits		0	0
	pd_ha_agent omitted	pd_ha_server_process_standby=Y (or omitted)	1	i
		pd_ha_server_process_standby=N	0	1

h: 6 + 2 (total number of front-end servers, dictionary servers, and back-end servers in the server machine)

i: 1 + (total number of front-end servers, dictionary servers, and back-end servers in the server machine)

j: Number of host BESs

k: Number of guest BESs

m: If there is a system manager unit, 3; otherwise, 0

n: One of the following:

• When the standby-less system switchover (effects distributed) facility is not used
  Then number of back-end servers in the server machine
  
• When the standby-less system switchover (effects distributed) facility is used
  number of host BESs in server machine + value of pd_ha_max_act_guest_servers operand
  

S_i: Number of pdbuffer -r operands defined for RDAREAs placed in each server

T_i: Number of pdbuffer -i operands defined for RDAREAs placed in each server

U_i: Number of -o options specified in the pdbuffer operand

V_i: 1 (if 1 or greater is specified in the pd_max_ard_process operand) or 0

W_i: 2 (if a value is specified in the pd_dfw_awt_process operand) or 0

X_i: Value of the pd_dfw_awt_process operand + 1 (if a value is specified in the pd_dfw_awt_process operand) or 0

Y_i: Number of -c options specified in the pdbuffer operand