vincent's Blog

disabled CPU thread for Solaris SPARC
psradm -f processor_id


OPTIONS
     The following options are supported:

     -a    Perform the action on all processors, or  as  many  as
           possible.

     -f    Take the specified processors off-line.

     -F    Force  the  transition  to  the  additional  specified
           state.  Required  if one or more of the specified pro-
           cessors was in the faulted state.  Set  the  specified
           processors  to  faulted, if no other transition option
           was specified. Forced transitions can only be made  to
           faulted, spare, or off-line states. Administrators are
           encouraged to use the -Q option for pbind(1M) to  find
           out which threads will be affected by forced a proces-
           sor state transition.

     -i    Set the specified processors no-intr.

     -n    Bring the specified processors on-line.

     -s    Make the specified processors spare.

     -v    Output a message giving the results of each  attempted
           operation.
EXAMPLES
     Example 1 Setting Processors to off-line

     The following example sets processors 2 and 3 off-line:

       % psradm -f 2 3

     Example 2 Setting Processors to no-intr

     The following example sets processors 1 and 2 no-intr:

       % psradm -i 1 2

     Example 3 Setting Processors to spare

     The following example sets processors 1 and 2 spare, even if
     either of the processors was in the faulted state:

       % psradm -F -s 1 2

     Example 4 Setting All Processors on-line

       % psradm -a -n

SunOS 5.10          Last change: 25 Feb 2008                    3

System Administration Commands                         psradm(1M)

     Example 5 Forcing Processors to off-line

     The following example sets processors 1 and 2  offline,  and
     revokes  the  processor bindings from the processes bound to
     them:

       % psradm -F -f 1 2

EXIT STATUS
     The following exit values are returned:

     0     Successful completion.

     >0    An error occurred.