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     cfgadm_ac - EXX00 memory system administration

     /usr/sbin/cfgadm [-c configure] [-f] [-o  disable-at-boot  |
     enable-at-boot ] ac#:bank# ...

     /usr/sbin/cfgadm [-c unconfigure]  [-o   disable-at-bootp  |
     enable-at-boot  ] ac#:bank# ...

     /usr/sbin/cfgadm  [-v]  [-o   quick  |  normal  |  extended,
     [max_errors=#] ] -t ac#:bank#...

     /usr/sbin/cfgadm -x relocate-test ac#:bank# ...

     /usr/sbin/cfgadm [-l] -o  disable-at-boot  |  enable-at-boot
     ac#:bank# ...

     The        ac        hardware        specific        library
     /usr/platform/sun4u/lib/cfgadm/cfgadm_ac.so.1  provides  the
     functionality for configuring and unconfiguring memory banks
     on  E6X00,  E5X00,  E4X00  and  E3X00 systems as part of the
     Dynamic   Reconfiguration   of   CPU/Memory   boards   using

     Memory banks appear as attachment points in the device tree.
     For  each  CPU/Memory  board, two attachment points are pub-
     lished, one for each bank on the board: bank0 and bank1.  If
     the  bank  is unpopulated, the receptacle state is empty. If
     the bank is populated, the receptacle  state  is  connected.
     The  receptacle  state of a memory bank can never be discon-
     nected. The occupant state of a connected memory bank can be
     configured or unconfigured. If the occupant state is config-
     ured, the memory is in use by Solaris, if unconfigured it is

     Refer to cfgadm(1M) for complete descriptions of the command

     The following options are supported:

     -c configure | unconfigure

         Change  the  occupant  state.  The  configure   argument
         ensures  that  the  memory  is  initialized and adds the
         memory to the Solaris memory pool. The unconfigure argu-
         ment  removes  the  memory  from  use by Solaris. When a
         CPU/Memory board is to be removed from  a  system,  both
         banks of memory must be unconfigured.

         cfgadm refuses the configure operation if the memory  on
         the  board  is marked disabled-at-boot (see info field),
         unless either the -f (force) option  or  the  enable  at
         boot  flag, (-o enable-at-boot), is given. The configure
         operation takes a short time proportional to the size of
         memory that must be initialized.

         cfgadm refuses the unconfigure operation   if  there  is
         not  enough uncommitted memory in the system (VM viabil-
         ity error) or if the bank to be unconfigured has  memory
         that  can't  be  removed  (non-relocatable pages error).
         The presence of non-relocatable pages  is  indicated  by
         the  word  permanent in the info listing field. Removing
         memory from use by Solaris may take a  significant  time
         due  to  factors such as system load and how much paging
         to secondary storage is required. The unconfigure opera-
         tion  can  be  cancelled  at  any  time  and  the memory
         returned to the fully configured state  by  interrupting
         the  command  invocation  with a signal. The unconfigure
         operation self-cancels  if  no  memory  can  be  removed
         within  a  timeout period. The default timeout period of
         60 seconds can be changed using the -o timeout=# option,
         with a value of 0 disabling the timeout.


         Force option. Use this option to override the  block  on
         configuring  a memory bank marked as disabled at boot in
         the  non-volatile  disabled-memory-list  variable.   See
         Platform  Notes:Sun  Enterprise 6x00/5x00/4x00/3x00 Sys-


         List option. This option is supported  as  described  in

         The type field is always memory.

         The info field has the following information  for  empty

         slot# empty

         The slot# indicates  the  system  slot  into  which  the
         CPU/Memory  board is inserted. For example, if this were
         slot11 the attachment point for use with cfgadm to mani-
         pulate  the  associated  board would be sysctrl0:slot11.
         The info field has the following  information  for  con-
         nected banks:

         slot# sizeMb|sizeGb [(sizeMb|sizeGb used)] base 0x###
               [interleaved #-way] [disabled at boot] [permanent]

          The size of the bank is given in Mb or Gb as  appropri-
         ate.  If  the  memory  is less than completely used, the
         used size is reported.  The  physical  base  address  is
         given  in hexadecimal. If the memory bank is interleaved
         with some other bank, the interleave factor is reported.
         If the memory on the board is disabled at boot using the
         non-volatile  disabled-memory-list  variable,  this   is
         reported.  If the bank has memory that cannot be removed
         this is reported as permanent.

     -o disable-at-boot | enable-at-boot

         These  options  allow  the  state  of  the  non-volatile
         disabled-memory-list  variable  to  be  modified.  These
         options can be used in conjunction with the issuing of a
         -c  option  or with the explicit or implied listing com-
         mand, -l, if no command is required. Use of  -o  enable-
         at-boot with the configure command to override the block
         on configuring memory on a board in the disabled  memory

     -o extended | normal | quick

         Use with the -t option to specify test level.

         The normal test level  ensures  that  each  memory  cell
         stores  both  a 0 and a 1, and checks that all cells are
         separately addressable. The quick test level  only  does
         the  0s  and  1s test, and typically misses address line
         problems. The extended test uses patterns  to  test  for
         adjacent  cell  interference problems.  The default test
         level is normal. See -t option.

     -o max_errors=#

         Use with the -t option to specify the maximum number  of
         allowed  errors.  If  not  specified, a default of 32 is

     -o timeout=#

         Use with  the  unconfigure  command  to  set  the  self-
         cancelling timeout. The default value is 60 and the unit
         is seconds. A value of 0 means no timeout.


         Test an unconfigured bank of memory.  Specify  the  test
         level using the -o quick | normal | extended option.

         cfgadm exits with a 0 (success) if the test was able  to
         run on the memory bank. The result of the test is avail-
         able in the condition for the attachment point.


         Verbose option. Use  this  option  in  combination  with
         the  -t  option to display detailed progress and results
         of tests.

     -x relocate-test

         For all pages of memory in use on the  specified  memory
         bank,  a relocation operation as used in the unconfigure
         command is attempted. The success of this operation does
         not guarantee that the bank can be unconfigured. Failure
         indicates that it probably cannot be unconfigured.  This
         option is for test purposes only.

     The following operand is supported:

     ac#:bank#               The  attachment  points  for  memory
                             banks  are published by instances of
                             the address controller  (ac)  driver
                             (ac#). One instance of the ac driver
                             is created for  each  system  board,
                             but  only those instances associated
                             with CPU/Memory boards  publish  the
                             two  bank  attachment  points, bank0
                             and bank1.

                              This form conforms to  the  logical

                             ap_id    specification    given   in
                             cfgadm(1M). The corresponding physi-
                             cal  ap_ids  are listed in the FILES

                             The ac driver instance numbering has
                             no  relation  to the slot number for
                             the corresponding  board.  The  full
                             physical attachment point identifier
                             has  the  slot  number  incorporated
                             into  it as twice the slot number in
                             hexadecimal directly  following  the
                             fhc@ part.


         attachment points


         hardware specific library file

     See attributes(5) for descriptions of the  following  attri-

    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    | Availability                | SUNWkvm.u                   |

     cfgadm(1M),   cfgadm_sysctrl(1M),     config_admin(3CFGADM),

     Sun Enterprise 6x00, 5x00, 4x00  and  3x00  Systems  Dynamic
     Reconfiguration User's Guide

     Platform Notes:Sun Enterprise 6x00/5x00/4x00/3x00 Systems


     Refer to the Sun Enterprise 6x00, 5x00, 4x00 and  3x00  Sys-
     tems  Dynamic  Reconfiguration  User's  Guide for additional
     details regarding dynamic reconfiguration  of  EXX00  system
     CPU/Memory boards.

Man pages from Solaris 10 Update 8. See docs.sun.com and www.oracle.com for further documentation and Solaris information.