updmemcpu(8) — Reliant UNIX 5.44c4

updmemcpu(8)                    (RM400 only)                   updmemcpu(8)

NAME
     updmemcpu - reading and writing CPU and DIMM information

SYNOPSIS
     /usr/bin/lar/updmemcpu [-w] [-R] [-p cpuno] [-c card] [-b bank]
                            [-d dimm] [-s state] [-h]

DESCRIPTION
     updmemcpu is required to read or write LAR status information for the
     CPU and storage DIMMs.

     This information is stored in the NVMEM as well as in the HW_CONFIG
     database. It is required so that

     a) the firmware can exclude faulty components when the system starts
        up (this is why the information is stored in the NVMEM).

     b) the current configuration and status of the CPU and DIMM components
        can be displayed when the system is running.

     The two information sources, i.e. the NVMEM and HW_CONFIG, are syn-
     chronized when the system boots and when serious errors occur.

     If a status is modified or written (-w option), the values 0 (for
     "OK") and 1 (for "defect") are permitted (-s option).

     If updmemcpu is used as the read program (no -w option) for the
     status, the values 0 (for "OK"), 1 (for "defect"), 2 (for "component
     not available") and 3 (error indicator) are returned.

OPTIONS
     No argument specified:
          Updates HW_CONFIG to the latest status with the information from
          the NVMEM.

     -w   Changes the contents of the NVMEM; the status is specified with
          the -c, -p, -b, -d or -s options.

          -w option not specified:

          The status of the specified component is returned. Components are
          specified with the -c, -p, -b or -d options.

     -p cpuno
          Specifies a CPU with the number cpuno. Permitted entries are in
          the range 0-3.

     -c card
          Specifies a memory card with the number card. Permitted entries
          are 1 or 2.





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updmemcpu(8)                    (RM400 only)                   updmemcpu(8)

     -b bank
          Specifies a memory bank with the number bank. Permitted entries
          are in the range 1-4.

     -d dimm
          Specifies a DIMM with the number dimm. Permitted entries are in
          the range 1-8.

     -s state
          Specifies a status state to be set. Permitted entries are 0
          ("OK") or 1 ("defect").

     -R   Sets LAR mode to "No defects and no LAR mode".

     -h   Outputs the usage.

EXAMPLES
     /usr/bin/lar/updmemcpu
          Updates the HW_CONFIG database to the latest status with the
          information from the NVMEM.

     /usr/bin/lar/updmemcpu -p 3
          Returns the status of the CPU with the number 3.

     /usr/bin/lar/updmemcpu -w -c 1 -b 2 -d 3 -s 1
          Sets the status in the NVMEM to "defect" for the DIMM with the
          number 2.3 on the first memory card.

SEE ALSO
     lar(7), olr(7).
























Page 2                       Reliant UNIX 5.44                Printed 11/98

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