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13.3 Maintenance Precautions


13.3 Maintenance Precautions
This section describes precautions for maintaining the PSU backplane unit and operation panel.
  1. Do not replace a PSU backplane unit at the same time as a CPU memory unit. If you replace a PSU backplane unit at the same time as a CPU memory unit, the system may fail to operate normally. Replace either the PSU backplane unit or the CPU memory unit, and confirm that the newly installed part is normal by using the showhardconf or showstatus command. Then, replace the other FRU.
  2. Do not mount and use any of the following PSU backplane units in another chassis:
    - the one currently mounted in the SPARC M10-4/M10-4S, or

    - one that was once used as a maintenance part

    This is because these PSU backplane units store device identification information.
  3. To replace the operation panel, remove the PSU backplane from the chassis.
  4. To replace the operation panel on the SPARC M10-4S, you need to set the BB-ID of the replacement operation panel to the same value as that before maintenance.