The following table lists maximum and minimum values for the HiRDB system configuration.

Table A-1 Maximum and minimum values for the HiRDB system configuration

Item				Minimum value	Maximum value	Units
Number of servers that can be created per unit				1	34	Count
Number of single servers				1	1	Count
Number of system managers				1	1	Count
Number of front-end servers				1	1,024	Count
Number of dictionary servers				1	1	Count
Number of back-end servers				1	16,382	Count
Total number of RDAREAs				3	8,388,592	Count
Number of master directory RDAREAs				1	1	Count
Number of data directory RDAREAs				1	1	Count
Number of data dictionary RDAREAs				1	59	Count
Number of data dictionary RDAREAs that store database state analyzed tables and database management tables				1	1	Count
Number of user RDAREAs				0	8,388,589	Count
Number of data dictionary LOB RDAREAs				0	2	Count
Number of user LOB RDAREAs				0	8,388,325	Count
Number of registry RDAREAs				0	1	Count
Number of registry LOB RDAREAs				0	1	Count
Number of list RDAREAs				0	8,388,588	Count
Number of HiRDB files per RDAREA				1	16	Count
Number of base tables and sequence generators per RDAREA				0	500	Count
Number of indexes per RDAREA				0	500	Count
Number of lists per RDAREA				0	50,000	Count
Total number of HiRDB files				1	134,217,728	Count
Number of concurrently accessible tables				4	32,000	Count
Maximum number of concurrent connections				1	For a HiRDB single server configuration: 3,000 For a HiRDB parallel server configuration: 2,000#1	Count
Maximum number of users that can be created by HiRDB#2				1	Unlimited	Count
Number of users who can own the same list				0	32,767	Count
Number of lists created per user				0	32,767	Count
Number of work tables created per transaction				0	255	Count
Number of global buffers per server#3				1	2,000,000	Count
HiRDB file system area	HP-UX	Large file not used	Regular file	1	2,047	MB
			Character special file	1	2,047	MB
		Large file used	Regular file	1	1,048,575	MB
			Character special file	1	1,048,575	MB
	Solaris	Large file not used	Regular file	1	2,047	MB
			Character special file	1	2,047	MB
		Large file used	Regular file	1	1,048,575	MB
			Character special file	1	1,048,575	MB
	AIX	Large file not used	Regular file	1	2,047	MB
			Character special file	1	2,047	MB
		Large file used	Regular file (JFS)	1	65,411	MB
			Regular file (JFS2)	1	1,048,575	MB
			Character special file	1	1,048,575	MB
	Linux	Large file not used	Regular file	1	2,047	MB
			Character special file	1	2,047	MB
		Large file used	Regular file	1	1,048,575	MB
			Character special file	1	1,048,575	MB

#1: For a configuration with multiple front-end servers, the maximum for number of front-end servers value of pd_max_users is 2,000.

#2: The value depends on the size of data dictionary RDAREAs because one row of the data dictionary table (SQL_USERS) is used per user.

#3: However, for the entire system, the maximum is 2,147,483,647.