RCTLADM(8) Maintenance Commands and Procedures RCTLADM(8)

NAME

rctladm - display or modify global state of system resource controls

SYNOPSIS

rctladm [-lu] [-e action] [-d action] [name...]

DESCRIPTION

The rctladm command allows the examination and modification of active
resource controls on the running system. An instance of a resource
control is referred to as an rctl. See setrctl(2) for a description
of an rctl; see resource_controls(7) for a list of the rctls
supported in the current release of the Solaris operating system.
Logging of rctl violations can be activated or deactivated system-
wide and active rctls (and their state) can be listed.


An rctladm command without options is the equivalent of an rctladm
with the -l option. See the description of -l below.

OPTIONS

The following options are supported:

-d action
-e action

Disable (-d) or enable (-e) the global action on the specified
rctls. If no rctl is specified, no action is taken and an error
status is returned. You can use the special token all with the
disable option to deactivate all global actions on a resource
control.

You can set the syslog action to a specific degree by assigning a
severity level. To do this, specify syslog=level, where level is
one of the string tokens given as valid severity levels in
syslog(3C). You can omit the common LOG_ prefix on the severity
level. Note that not all rctls support the syslog action. See
resource_controls(7).


-l

List information about rctls. The name, global event actions and
statuses, and global flags are displayed. If one or more name
operands are specified, only those rctls matching the names are
displayed.


-u

Configure resource controls based on the contents of
/etc/rctladm.conf. Any name operands are ignored.

OPERANDS

The following operands are supported:

name

The name of the rctl to operate on. Multiple rctl names can be
specified. If no names are specified, and the list action has
been specified, then all rctls are listed. If the enable or
disable action is specified, one or more rctl names must be
specified.

EXAMPLES

Example 1: Activating System Logging for Specific Violations

The following command activates system logging of all violations of
task.max-lwps.


# rctladm -e syslog task.max-lwps
#

Example 2: Examining the Current Status of a Specific Resource

The following command examines the current status of the task.max-
lwps resource.


$ rctladm -l task.max-lwps
task.max-lwps syslog=DEBUG
$

EXIT STATUS

The following exit values are returned:

0

Successful completion.


1

A fatal error occurred. A message is written to standard error to
indicate each resource control for which the operation failed.
The operation was successful for any other resource controls
specified as operands.


2

Invalid command line options were specified.

FILES

/etc/rctladm.conf

Each time rctladm is executed, it updates the contents of
rctladm.conf with the current configuration.

SEE ALSO

prctl(1), getrctl(2), setrctl(2), rctlblk_get_global_action(3C),
rctlblk_get_global_flags(3C), attributes(7), resource_controls(7)

NOTES

By default, there is no global logging of rctl violations.

July 2, 2007 RCTLADM(8)