psradm(1M)
psradm --
processor administration
Synopsis
psradm -a -f | -n [-v]
psradm -f | -n [-v] processor_id [ . . .]
Description
The psradm command
is the interface to processor configuration management
on a multiprocessor system.
It is used by system administrators and operators to manage the
administrative state of individual processors in a
multiprocessor system.
The processor_id is an integer that uniquely identifies a processor;
one or more processors can be specified.
Successful state transitions are recorded
in the /var/adm/wtmp file
for later system activity accounting.
When the -n option is specified, the following message
is written to the kernel log driver:
UX:psradm:INFO:At MM/DD/YY HH:MM:SS, processor_id was brought online.
When the -f option is specified, the following message
is written to the kernel log driver:
UX:psradm:INFO:At MM/DD/YY HH:MM:SS, processor_id was taken offline.
The message also is written to the standard output
when the -v option is specified.
System activity such as
a system reboot or putting a processor online
is recorded in the
/var/adm/wtmp file.
The options are:
- -a
-
Specifies that all processors are targeted for the operation.
- -f
-
Take the specified processor(s)
offline, and make unavailable for use.
This token specifies a transition from an online or unlocked state
to an offline or locked administrative state.
If the -a option is specified, all online
processors except the boot processor will be taken
offline.
A processor can not be taken
offline until
the processor is in an idle usage state.
- -n
-
Bring the specified processor(s) online or all processors online if
no processor_id is specified.
-n specifies a transition from a
locked administrative
state to an unlocked administrative state.
If the -a option is specified, all offline processors
will be brought online.
The named processors must be in an enabled operational
state before this operation will succeed.
- -v
-
By default, the command executes silently.
The -v forces the command to report the completing status per
processor_id.
Errors
The following conditions will result in abnormal program termination:
-
user does not have appropriate privilege
-
processor_id specified is invalid
-
specified processor has one or more LWPs bound to it and
cannot be taken offline
Examples
To unlock a processor, or bring it online:
psradm -n processor_id
To lock a processor, or take it offline:
psradm -f processor_id
References
psrinfo(1M)
30 January 1998
© 1998 The Santa Cruz Operation, Inc. All rights reserved.