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)