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25-2 SPARC Enterprise M8000/M9000 Servers Service Manual • October 2012
In addition, the FRUs have the following features.
■ CMU and IOU allow the active addition using the DR function.
■ Addition of DIMM involves removing and installing the CMU.
■ PCI card (including link card) allows the active addition using the PHP function.
25.1.1 Active Addition
First, select a unit to be added as described below.
1. Log in to the XSCF.
2. Execute the addition command (addfru).
3. When the following addition menu is displayed, select the type of FRU to be added.
FIGURE 25-1 Initial Page of the Maintenance Menu
Perform the operation according to the instructions displayed in the addition menu. For
details, see the appropriate chapter on FRU replacement.
Note – In active addition of an IOU, mount the CMU and IOU in the proper location.
Otherwise, the added IOU may not operate.
25.1.2 Cold Addition
In cold addition the main line switches of the system are turned off and the addition menu is
not available. Perform the addition according to the following procedure.
1. Set the mode switch on the operator panel to Service.
2. Use one of the following methods to stop (power off) all domains at once.
XSCF> addfru
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Maintenance/Addition Menu
Please select a type of FRU to be added.
1. CMU/IOU (CPU Memory Board Unit/IO Unit)
2. FAN (Fan Unit)
3. PSU (Power Supply Unit)
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Select [1-3|c:cancel]: