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sysconfigtab(4) Kernel Interfaces Manual sysconfigtab(4) NAME sysconfigtab - Configurable subsystem definition database file SYNOPSIS /etc/sysconfigtab DESCRIPTION The sysconfigtab file contains initial values for the attributes of subsystems that can be dynamically configured. The information in the sysconfigtab file is loaded into an in-memory kernel database when the system boots. At subsystem configuration time, values in the in-memory kernel database override default values coded into the subsystem. Avoid making manual changes to this file. Instead, use the command sysconfigdb(8) to make changes. This utility will automatically make any changes available to the kernel and will preserve the structure of the file so that future upgrades will merge in correctly. The sysconfigtab file consists of formatted entries. The first line in an entry specifies the subsystem name. Subsequent lines specify the subsystems' attributes and values. Comment lines are allowed within an entry. The following shows the syntax of a subsystem entry: subsystem- name: #This is a comment describing the subsystem attribute1 = value1 attribute2 = value2, value3 The following list details sysconfigtab entries: The subsystem name is terminated with a colon (:). Each attribute name and value pair are terminated with a newline character. Attribute names are separated from values with an equal sign (=). Attributes that have more than one value separate the values with a comma (,). Quotation marks are not used (") in string values. Blank or tab characters may occur in the middle of a string, but leading or trailing blanks are ignored. A num- ber sign (#) appears the beginning of comment lines. Comments that are specific to the subsystem are placed the com- ment after the line containing the subsystem name. The syscon- figdb command considers a sysconfigtab entry to begin with the subsystem name and end with either the next subsystem name or the end of the file. Any comments that appear before a subsys- tem name are considered to be part of the preceding subsystem and are deleted if the preceding subsystem is deleted. For a list of the subsystem attributes you can configure, see the Sys- tem Administration manual. For information about loadable device dri- ver attributes, see the Writing Device Drivers: Tutorial manual. RESTRICTIONS The maximum length of a stanza entry is 40960 bytes. An entry cannot contain more than 2048 fields (lines). The maximum length of a stanza field is 500 bytes. EXAMPLES The following shows an example stanza entry that could appear in the configurable subsystem database: proc: max-proc-per-user = 64 max-threads-per-user = 256 The preceding entry defines the max-proc-per-user and max-threads-per- user attributes for the proc subsystem. RELATED INFORMATION Commands: sysconfig(8), sysconfigdb(8), cfgmgr(8) Files: stanza(4) System Administration Writing Device Drivers: Tutorial delim off sysconfigtab(4)